Tektronix Sander TDS 500D User Manual

Technical Reference

TDS 500D, TDS 600B & TDS 700D

Digitizing Oscilloscopes

Performance Verification and Specifications

071-0135-00

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WARRANTY

Tektronix warrants that this product will be free from defects in materials and workmanship for a period of three (3) years

from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either

will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the

defective product.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the

warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for

packaging and shipping the defective product to the service center designated by Tektronix, with shipping charges prepaid.

Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the

Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any

other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate

maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting

from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to repair

damage resulting from improper use or connection to incompatible equipment; or c) to service a product that has been

modified or integrated with other products when the effect of such modification or integration increases the time or

difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY

OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY

IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND

EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX

AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR

CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS

ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

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Table of Contents

General Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contacting Tektronix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performance Verification Procedures

Performance Verification Procedures . . . . . . . . . . . . . . . . . . . . . . . . . .

Input Channels vs. Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1

1–2

Brief Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Self Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Functional Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–5

1–7

Performance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDS 600B Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDS 500D/700D Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDS 794D Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Signal Acquisition System Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Time Base System Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Trigger System Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output Signal Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Option 05 Video Trigger Checks (Not Available on TDS 794D) . . . . . . . . . . . .

Sine Wave Generator Leveling Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optical Filters Checks (TDS 500D/TDS 700D Only) . . . . . . . . . . . . . . . . . . . . .

1–15

1–16

1–18

1–22

1–26

1–29

1–46

1–49

1–62

1–71

1–88

1–91

Specifications

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Signal Acquisition System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Horizontal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Trigger System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Acquisition Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

On-Board User Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Measurement Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1

2–2

2–3

2–5

2–6

2–7

2–8

2–9

Nominal Traits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warranted Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Typical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–11

2–19

2–27

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Table of Contents

List of Figures

Figure 1–1: Map of display functions . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–2: Verifying adjustments and signal-path compensation . .

1–3

1–6

Figure 1–3: Universal test hookup for functional tests –

TDS 600B shown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–8

1–31

1–32

Figure 1–4: Measurement of DC offset accuracy at zero setting . . . .

Figure 1–5: Initial test hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–6: Measurement of DC accuracy at maximum

offset and position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–35

1–37

1–40

1–42

1–44

1–46

1–48

1–50

Figure 1–7: Initial test hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–8: Optional initial test hookup . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–9: Measurement of analog bandwidth . . . . . . . . . . . . . . . . . .

Figure 1–10: Initial test hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–11: Measurement of channel delay – TDS 684B shown . . . .

Figure 1–12: Initial test hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–13: Measurement of accuracy – Long-term and delay time

Figure 1–14: Initial test hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–15: Measurement of time accuracy for pulse and

glitch triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–51

1–53

1–55

1–58

Figure 1–16: Initial test hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–17: Measurement of trigger-level accuracy . . . . . . . . . . . . .

Figure 1–18: Initial test hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–19: Measurement of trigger sensitivity – 50 MHz results

shown on a TDS 684B screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–59

1–62

1–64

1–66

1–68

1–69

1–70

1–72

1–73

1–74

1–75

1–76

1–77

Figure 1–20: Initial test hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–21: Measurement of main trigger out limits . . . . . . . . . . . . .

Figure 1–22: Initial test hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–23: Measurement of probe compensator frequency . . . . . . .

Figure 1–24: Subsequent test hookup . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–25: Measurement of probe compensator amplitude . . . . . .

Figure 1–26: Jitter test hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–27: Jitter test displayed waveform – TDS 684B shown . . . .

Figure 1–28: Jitter test when completed – TDS 684B shown . . . . . . .

Figure 1–29: Triggered signal range test – 300 mV . . . . . . . . . . . . . . .

Figure 1–30: Triggered signal range test – 75 mV . . . . . . . . . . . . . . . .

Figure 1–31: 60 Hz Rejection test hookup . . . . . . . . . . . . . . . . . . . . . .

Figure 1–32: 60 Hz Rejection test setup signal . . . . . . . . . . . . . . . . . . .

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Figure 1–33: Subsequent 60 Hz Rejection test hookup . . . . . . . . . . . .

1–78

1–79

1–80

Figure 1–34: 60 Hz Rejection test result – TDS 684B shown . . . . . . .

Figure 1–35: Line count accuracy test hookup . . . . . . . . . . . . . . . . . . .

Figure 1–36: Line count accuracy test setup waveform –

TDS 684B shown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–81

1–82

1–84

1–85

1–86

1–88

1–90

1–93

Figure 1–37: Line count accuracy correct result waveform . . . . . . . .

Figure 1–38: Setup for sync duty cycle test . . . . . . . . . . . . . . . . . . . . . .

Figure 1–39: Sync duty cycle test: one-div neg pulse waveform . . . . .

Figure 1–40: Sync duty cycle test: critically adjusted pulse . . . . . . . .

Figure 1–41: Sine wave generator leveling equipment setup . . . . . . .

Figure 1–42: Equipment setup for maximum amplitude . . . . . . . . . .

Figure 1–43: Reference-receiver performance-verification set up . . .

Figure 1–44: Optical impulse of Ch1 input from OA5022

Optical Attenuator (OIG501 / OIG502 fed into optical

attenuator in Step 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–95

1–98

1–99

Figure 1–45: Optical impulse response for OC–12 SONET

Reference Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–46: Optical impulse response for OC–12 SONET

Reference Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

iii

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Table of Contents

List of Tables

Table 1–1: Test equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–2: DC offset accuracy (zero setting) . . . . . . . . . . . . . . . . . . . .

Table 1–3: DC Voltage measurement accuracy . . . . . . . . . . . . . . . . . .

Table 1–4: Analog bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–5: Delay between channels worksheet . . . . . . . . . . . . . . . . . .

Table 1–6: Trigger level accuracy readout . . . . . . . . . . . . . . . . . . . . . .

Table 1–7: Delayed trigger level accuracy readout . . . . . . . . . . . . . . .

Table 1–8: Available Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–9: Reference Receiver Filter Options: . . . . . . . . . . . . . . . . . . .

Table 1–10: Option 3C and 4C Specifications . . . . . . . . . . . . . . . . . . .

Table 1–11: Available receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–12: Bessel Thompson frequency response and

1–16

1–30

1–34

1–39

1–45

1–54

1–56

1–91

1–92

reference receiver limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–100

Table 2–1: Key features of the TDS 500D, 600B and

700D oscilloscopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 2–2: Record length and divisions per record vs. TDS model . .

Table 2–3: Nominal traits — Signal acquisition system . . . . . . . . . . .

Table 2–4: Nominal traits — Time base system . . . . . . . . . . . . . . . . . .

Table 2–5: Nominal traits — Triggering system . . . . . . . . . . . . . . . . .

Table 2–6: Nominal traits — Display system . . . . . . . . . . . . . . . . . . . .

2–1

2–4

2–11

2–12

2–13

2–15

Table 2–7: Nominal traits — GPIB interface, output ports, and

power fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–16

2–17

2–20

2–21

2–22

Table 2–8: Nominal traits — Data handling and reliability . . . . . . . .

Table 2–9: Nominal traits — Mechanical . . . . . . . . . . . . . . . . . . . . . . .

Table 2–10: Warranted characteristics — Signal acquisition system

Table 2–11: Warranted characteristics — Time base system . . . . . . .

Table 2–12: Warranted characteristics — Triggering system . . . . . .

Table 2–13: Warranted characteristics — Output ports,

probe compensator, and power requirements . . . . . . . . . . . . . . . .

2–23

2–24

2–26

2–27

2–30

Table 2–14: Warranted characteristics — Environmental . . . . . . . . .

Table 2–15: Certifications and compliances . . . . . . . . . . . . . . . . . . . . .

Table 2–16: Typical characteristics — Signal acquisition system . . .

Table 2–17: Typical characteristics — Triggering system . . . . . . . . .

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General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to

this product or any products connected to it. To avoid potential hazards, use the

product only as specified.

Only qualified personnel should perform service procedures.

While using this product, you may need to access other parts of the system. Read

the General Safety Summary in other system manuals for warnings and cautions

related to operating the system.

Injury Precautions

Use Proper Power Cord

Avoid Electric Overload

To avoid fire hazard, use only the power cord specified for this product.

To avoid electric shock or fire hazard, do not apply a voltage to a terminal that is

outside the range specified for that terminal.

Ground the Product

This product is grounded through the grounding conductor of the power cord. To

avoid electric shock, the grounding conductor must be connected to earth

ground. Before making connections to the input or output terminals of the

product, ensure that the product is properly grounded.

Connect and Disconnect

Properly

Do not connect or disconnect probes or test leads while they are connected to a

voltage source.

Do Not Operate Without

Covers

To avoid electric shock or fire hazard, do not operate this product with covers or

panels removed.

Use Proper Fuse

To avoid fire hazard, use only the fuse type and rating specified for this product.

To avoid electric shock, do not operate this product in wet or damp conditions.

Do Not Operate in

Wet/Damp Conditions

Do Not Operate in

Explosive Atmosphere

To avoid injury or fire hazard, do not operate this product in an explosive

atmosphere.

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General Safety Summary

Observe All Terminal

Ratings

To avoid fire or shock hazard, observe all ratings and markings on the product.

Consult the product manual for further ratings information before making

connections to the product.

Product Damage Precautions

Use Proper Power Source

Do not operate this product from a power source that applies more than the

voltage specified.

Provide Proper Ventilation

To prevent product overheating, provide proper ventilation.

Do Not Operate With

Suspected Failures

If you suspect there is damage to this product, have it inspected by qualified

service personnel.

Do Not Immerse in Liquids

Clean the probe using only a damp cloth. Refer to cleaning instructions.

Safety Terms and Symbols

Terms in This Manual

These terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that could result

in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result in

damage to this product or other property.

Terms on the Product

These terms may appear on the product:

DANGER indicates an injury hazard immediately accessible as you read the

marking.

WARNING indicates an injury hazard not immediately accessible as you read the

marking.

CAUTION indicates a hazard to property including the product.

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General Safety Summary

Symbols on the Product

The following symbols may appear on the product:

Double

Insulated

DANGER

High Voltage

Protective Ground

(Earth) Terminal

ATTENTION

Refer to

Manual

Certifications and Compliances

CSA Certified Power

Cords

CSA Certification includes the products and power cords appropriate for use in

the North America power network. All other power cords supplied are approved

for the country of use.

vii

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General Safety Summary

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Preface

This is the Performance Verification and Specifications for the TDS 500D,

TDS 600B, and TDS 700D Oscilloscopes. It contains procedures suitable for

determining if each instrument functions, was adjusted properly, and meets the

performance characteristics as warranted. The following models are covered:

TDS 500D:

TDS 600B:

TDS 700D:

TDS 520D, TDS 540D and TDS 580D

TDS 620B, TDS 644B, TDS 680B, and TDS 684B

TDS 724D, TDS 754D, TDS 784D, and TDS 794D

This document also contains the technical specifications for these oscilloscopes.

Related Manuals

The following documents are related to the use or service of this oscilloscope:

The TDS 500D, TDS 600B & 700D User Manual describes how to use this

oscilloscope.

The TDS Family Programmer Disk, included with the User Manual,

describes using a computer to control the oscilloscope through the GPIB

interface.

The TDS 500D, TDS 600B & 700D Reference describes a quick overview of

how to operate your oscilloscope.

The TDS 500D, TDS 600B & 700D Service Manual describes information

for maintaining and servicing the oscilloscope to the module level.

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Preface

Contacting Tektronix

Product

Support

For application-oriented questions about a Tektronix measure-

ment product, call toll free in North America:

1-800-TEK-WIDE (1-800-835-9433 ext. 2400)

6:00 a.m. – 5:00 p.m. Pacific time

Or, contact us by e-mail:

[email protected]

For product support outside of North America, contact your

local Tektronix distributor or sales office.

Service

Support

Contact your local Tektronix distributor or sales office. Or, visit

our web site for a listing of worldwide service locations.

http://www.tek.com

In North America:

For other

information 1-800-TEK-WIDE (1-800-835-9433)

An operator will direct your call.

To write us Tektronix, Inc.

P.O. Box 1000

Wilsonville, OR 97070-1000

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Performance Verification

Procedures

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Performance Verification Procedures

Two types of Performance Verification procedures can be performed on this

product: Brief Procedures and Performance Tests. You may not need to perform

all of these procedures, depending on what you want to accomplish.

To rapidly confirm that the oscilloscope functions and was adjusted properly,

just do the brief procedures under Self Tests, which begin on page 1–5.

Advantages: These procedures are quick to do, require no external

equipment or signal sources, and perform extensive functional and accuracy

testing to provide high confidence that the oscilloscope will perform

properly. They can be used as a quick check before making a series of

important measurements.

To further check functionality, first do the Self Tests just mentioned; then do

the brief procedures under Functional Tests that begin on page 1–7.

Advantages: These procedures require minimal additional time to perform,

require no additional equipment other than a standard-accessory probe, and

more completely test the internal hardware of the oscilloscope. They can be

used to quickly determine if the oscilloscope is suitable for putting into

service, such as when it is first received.

If more extensive confirmation of performance is desired, do the Perform-

ance Tests, beginning on page 1–15, after doing the Functional and Self Tests

just referenced.

Advantages: These procedures add direct checking of warranted specifica-

tions. They require more time to perform and suitable test equipment is

required. (See Equipment Required beginning on page 1–16).

If you are not familiar with operating this oscilloscope, read the TDS 500D,

TDS 600B & TDS 700D Reference (071-0137-XX) or the TDS 500D, TDS 600B

& TDS 700D User Manual (071-0130-XX). These contain instructions that will

acquaint you with the use of the front-panel controls and the menu system.

1–1

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Performance Verification Procedures

Input Channels vs. Model

When performing the procedures in this section, be aware that some TDS models

refer to input channels Ch 3 and Ch 4 as Aux 1 and Aux 2 respectively. Where

appropriate, both names will appear in the procedure, for example, Ch 3 (Aux 1).

The channel names for the various TDS models are shown below.

TDS Model

Channel Names

TDS 540D, 580D, 644B, 684B, 754D, 784D, and 794D

TDS 520D, 620B, 680B, and 724D

Ch 1, Ch 2, Ch 3, and Ch 4

Ch 1, Ch 2, Aux 1, and Aux 2

Conventions

Throughout these procedures the following conventions apply:

Each test procedure uses the following general format:

Title of Test

Equipment Required

Prerequisites

Procedure

Each procedure consists of as many steps, substeps, and subparts as required

to do the test. Steps, substeps, and subparts are sequenced as follows:

1. First Step

a. First Substep

First Subpart

Second Subpart

b. Second Substep

2. Second Step

In steps and substeps, the lead-in statement in italics instructs you what to

do, while the instructions that follow tell you how to do it, as in the example

step below, “Initialize the oscilloscope” by doing “Press save/recall SETUP.

Now, press the main-menu button...”.

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Performance Verification Procedures

Initialize the oscilloscope: Press save/recall SETUP. Now, press the

main-menu button Recall Factory Setup; then the side-menu button OK

Confirm Factory Init.

Where instructed to use a front-panel button or knob, or select from a main

or side menu, or verify a readout or status message, the name of the button or

knob appears in boldface type: “press SHIFT; then UTILITY, press the

main-menu button System until Cal is highlighted in the pop-up menu.

Verify that the status message is Pass in the main menu under the Voltage

Reference label.”

STOP. The STOP notation at the left is accompanied by information you must read

to do the procedure properly.

Refer to Figure 1–1: “Main menu” refers to the menu that labels the seven

menu buttons under the display; “side menu” refers to the menu that labels

the five buttons to the right of the display. “Pop-up menu” refers to a menu

that pops up when a main-menu button is pressed.

Position of waveform

record relative to

the screen and display

General purpose

knob readout

Brief status

information

Side menu area.

Readouts for

Graticule and waveforms

measurements

move here when

CLEAR MENU

is pressed.

Waveform reference

symbols show ground levels

and waveform sources

Vertical scale, horizontal scale,

and trigger level readouts

Pop-up menu

Main menu display area. Readouts in lower graticule

area move here when CLEAR MENU is pressed.

Figure 1–1: Map of display functions

1–3

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Performance Verification Procedures

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Brief Procedures

The Self Tests use internal routines to confirm basic functionality and proper

adjustment. No test equipment is required to do these test procedures.

The Functional Tests utilize the probe-compensation output at the front panel as

a test-signal source for further verifying that the oscilloscope functions properly.

A probe is required to do these test procedures.

Self Tests

This procedure uses internal routines to verify that the oscilloscope functions and

was adjusted properly. No test equipment or hookups are required.

Verify Internal Adjustment,

Self Compensation, and

Diagnostics

Equipment

required

None

Prerequisites

Power on the oscilloscope and allow a 20 minute warm-up before doing

this procedure.

1. Verify that internal diagnostics pass: Do the following substeps to verify

passing of internal diagnostics.

a. Display the System diagnostics menu:

Press SHIFT; then press UTILITY.

Repeatedly press the main-menu button System until Diag/Err is

highlighted in the pop-up menu.

b. Run the System Diagnostics:

First disconnect any input signals from all four channels.

Press the main-menu button Execute; then press the side-menu

button OK Confirm Run Test.

c. Wait: The internal diagnostics do an exhaustive verification of proper

oscilloscope function. This verification will take up to three and a half

minutes on some models. When the verification is finished, the resulting

status will appear on the screen.

d. Verify that no failures are found and reported on-screen. If any failures

occur do step 1a, then press the main menu button Error Log for details.

e. Confirm the three adjustment sections have passed status:

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Brief Procedures

Press SHIFT; then press UTILITY.

Highlight Cal in the pop-up menu by repeatedly pressing the

main-menu button System. See Figure 1–2.

Verify that the word Pass appears in the main menu under the

following menu labels: Voltage Reference, Frequency Response,

and Pulse Trigger. See Figure 1–2.

f. Run the signal-path compensation: Press the main-menu button Signal

Path; then press the side-menu button OK Compensate Signal Paths.

g. Wait: Signal-path compensation may take five minutes on the

TDS 500D/700D and fifteen minutes on the 600B to run. While it

progresses, a “clock” icon (shown at left) is displayed on-screen. When

compensation completes, the status message will be updated to Pass or

Fail in the main menu. See step h.

h. Confirm signal-path compensation returns passed status: Verify that the

word Pass appears under Signal Path in the main menu. See Figure 1–2.

Highlight Cal

Verify Pass

Figure 1–2: Verifying adjustments and signal-path compensation

2. Return to regular service: Press CLEAR MENU to exit the system menus.

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Brief Procedures

Functional Tests

The purpose of these procedures is to confirm that the oscilloscope functions

properly. The only equipment required is one of the standard-accessory probes

and, to check the file system, a 3.5 inch, 720 K or 1.44 Mbyte floppy disk.

CAUTION. The P6217, P6243, and P6245 probes that can be used with this

oscilloscope provide an extremely low loading capacitance (<1 pF) to ensure the

best possible signal reproduction. These probes should not be used to measure

signals exceeding ±8 volts, or errors in signal measurement will be observed.

Above 40 volts, damage to the probe may result. To make measurements beyond

±10 volts, use either the P6139A probe (good to 500 volts peak), the P6339A

probe (for the TDS 794D), or refer to the catalog for a recommended probe.

STOP. These procedures verify functions; that is, they verify that the oscilloscope

features operate. They do not verify that they operate within limits.

Therefore, when the instructions in the functional tests that follow call for you to

verify that a signal appears on-screen “that is about five divisions in amplitude”

or “has a period of about six horizontal divisions,” etc., do NOT interpret the

quantities given as limits. Operation within limits is checked in Performance

Tests, which begin on page 1–15.

STOP. DO NOT make changes to the front-panel settings that are not called out

in the procedures. Each verification procedure will require you to set the

oscilloscope to certain default settings before verifying functions. If you make

changes to these settings, other than those called out in the procedure, you may

obtain invalid results. In this case, just redo the procedure from step 1.

When you are instructed to press a menu button, the button may already be

selected (its label will be highlighted). If this is the case, it is not necessary to

press the button.

Verify All Input Channels

Equipment

required

One probe such as the P6243, P6245, P6139A, or P6339A

None

Prerequisites

1. Install the test hookup and preset the oscilloscope controls:

a. Hook up the signal source: Install the probe on CH 1. Connect the probe

tip to PROBE COMPENSATION SIGNAL on the front panel;

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Brief Procedures

connect the probe ground (typically black) to PROBE COMPENSA-

TION GND. If using a P6243 or P6245 probe, you may want to attach a

Y-lead connector and two SMD KlipChips as shown in Figure 1–3.

Signal

Gnd

Figure 1–3: Universal test hookup for functional tests – TDS 600B shown

b. Initialize the oscilloscope:

Press save/recall SETUP.

Press the main-menu button Recall Factory Setup.

Press the side-menu button OK Confirm Factory Init.

2. Verify that all channels operate: Do the following substeps — test CH 1

first, skipping substep a and b since CH 1 is already set up for verification

and as the trigger source from step 1.

a. Select an unverified channel:

Press WAVEFORM OFF to remove the channel just verified from

display.

Press the front-panel button that corresponds to the channel you are

to verify.

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Brief Procedures

Move the probe to the channel you selected.

b. Match the trigger source to the channel selected:

Press TRIGGER MENU.

Press the main-menu button Source.

Press the side-menu button that corresponds to the channel selected,

Ch2, Ch3, or Ch4. (Some TDS models use Ax1 and Ax2 instead of

Ch3 and Ch4).

c. Set up the selected channel:

Set the vertical SCALE to 200 mV.

Set the horizontal SCALE to 200 ms. Press CLEAR MENU to

remove any menu that may be on the screen.

Press SET LEVEL TO 50%.

d. Verify that the channel is operational: Confirm that the following

statements are true.

The vertical scale readout for the channel under test shows a setting

of 200 mV, and a square-wave probe-compensation signal about

2.5 divisions in amplitude is on-screen. See Figure 1–1 on page 1–3

to locate the readout.

The vertical POSITION knob moves the signal up and down the

screen when rotated.

Turning the vertical SCALE knob counterclockwise decreases the

amplitude of the waveform on-screen, turning the knob clockwise

increases the amplitude, and returning the knob to 200 mV returns

the amplitude to about 2.5 divisions.

e. Verify that the channel acquires in all acquisition modes: Press SHIFT;

then press ACQUIRE MENU. Use the side menu to select, in turn, each

of the three hardware acquire modes and confirm that the following

statements are true. Refer to the icons at the left of each statement as you

confirm those statements.

Sample mode displays an actively acquiring waveform on-screen.

(Note that there is noise present on the peaks of the square wave).

Peak Detect mode displays an actively acquiring waveform

on-screen with the noise present in Sample mode “peak detected.”

Hi Res mode (TDS 500D and 700D only) displays an actively

acquiring waveform on-screen with the noise that was present in

Sample mode reduced.

1–9

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Brief Procedures

Envelope mode displays an actively acquiring waveform on-screen

with the noise displayed.

Average mode displays an actively acquiring waveform on-screen

with the noise reduced.

f. Test all channels: Repeat substeps a through e until all four input

channels are verified.

3. Remove the test hookup: Disconnect the probe from the channel input and

the probe-compensation terminals.

Verify the Time Base

Equipment

required

One probe such as the P6243, P6245, P6139A, or P6339A

None

Prerequisites

1. Install the test hookup and preset the oscilloscope controls:

a. Hook up the signal source: Install the probe on CH 1. Connect the probe

tip to PROBE COMPENSATION SIGNAL on the front panel;

connect the probe ground to PROBE COMPENSATION GND. See

Figure 1–3 on page 1–8.

b. Initialize the oscilloscope:

Press save/recall SETUP.

Press the main-menu button Recall Factory Setup; then press the

side-menu button OK Confirm Factory Init.

c. Modify default settings:

Set the vertical SCALE to 200 mV.

Set the horizontal SCALE to 200 ms.

Press SET LEVEL TO 50%.

Press CLEAR MENU to remove the menus from the screen.

2. Verify that the time base operates: Confirm the following statements.

a. One period of the square-wave probe-compensation signal is about five

horizontal divisions on-screen for the 200 ms horizontal scale setting (set

in step 1c).

b. Rotating the horizontal SCALE knob clockwise expands the waveform

on-screen (more horizontal divisions per waveform period), counter-

clockwise rotation contracts it, and returning the horizontal scale to

200 ms returns the period to about five divisions.

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Brief Procedures

c. The horizontal POSITION knob positions the signal left and right

on-screen when rotated.

3. Remove the test hookup: Disconnect the probe from the channel input and

the probe-compensation terminals.

Verify the Main and

Delayed Trigger Systems

Equipment

required

One probe such as the P6243, P6245, P6139A, or P6339A

None

Prerequisites

1. Install the test hookup and preset the oscilloscope controls:

a. Hook up the signal source: Install the probe on CH 1. Connect the probe

tip to PROBE COMPENSATION SIGNAL on the front panel;

connect the probe ground to PROBE COMPENSATION GND. See

Figure 1–3 on page 1–8.

b. Initialize the oscilloscope:

Press save/recall SETUP.

Press the main-menu button Recall Factory Setup.

Press the side-menu button OK Confirm Factory Init.

c. Modify default settings:

Set the vertical SCALE to 200 mV.

Set the horizontal SCALE for the M (main) time base to 200 ms.

Press SET LEVEL TO 50%.

Press TRIGGER MENU.

Press the main-menu button Mode & Holdoff.

Press the side-menu button Normal.

Press CLEAR MENU to remove the menus from the screen.

2. Verify that the main trigger system operates: Confirm that the following

statements are true.

The trigger level readout for the main trigger system changes with the

trigger-LEVEL knob.

The trigger-LEVEL knob can trigger and untrigger the square-wave

signal as you rotate it. (Leave the signal untriggered, which is indicated

by the display not updating).

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Brief Procedures

Pressing SET LEVEL TO 50% triggers the signal that you just left

untriggered. (Leave the signal triggered).

3. Verify that the delayed trigger system operates:

a. Select the delayed time base:

Press HORIZONTAL MENU.

Press the main-menu button Time Base.

Press the side-menu button Delayed Triggerable; then press the

side-menu button Delayed Only.

Set the horizontal SCALE for the D (delayed) time base to 200 ms.

b. Select the delayed trigger level menu:

Press SHIFT; then press DELAYED TRIG.

Press the main-menu button Level; then press the side-menu button

Level.

c. Confirm that the following statements are true:

The trigger-level readout for the delayed trigger system changes as

you turn the general purpose knob.

As you rotate the general purpose knob, the square-wave probe-com-

pensation signal can become triggered and untriggered. (Leave the

signal untriggered, which is indicated by the display not updating).

Pressing the side-menu button Set to 50% triggers the probe-com-

pensation signal that you just left untriggered. (Leave the signal

triggered).

d. Verify the delayed trigger counter:

Press the main-menu button Delay by Time.

Use the keypad to enter a delay time of 1 second. Press 1, then press

ENTER.

Verify that the trigger READY indicator on the front panel flashes

about once every second as the waveform is updated on-screen.

4. Remove the test hookup: Disconnect the probe from the channel input and

the probe-compensation terminals.

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Brief Procedures

Verify the File System

Equipment

required

One probe such as the P6243, P6245, P6139A, or P6339A

One 720 K or 1.44 Mbyte, 3.5 inch DOS-compatible disk.

You can use a disk of your own or you can use the TDS Family

Programmer Disk (Tektronix part number 063-3002-XX) included in the

TDS 500D, TDS 600B & TDS 700D User Manual (Tektronix part

number 071–0130–XX).

Prerequisites

None

1. Install the test hookup and preset the oscilloscope controls:

a. Hook up the signal source: Install the probe on CH 1. Connect the probe

tip to PROBE COMPENSATION SIGNAL on the front panel;

connect the probe ground to PROBE COMPENSATION GND. See

Figure 1–3 on page 1–8.

b. Insert the test disk: Insert the floppy disk in the floppy disk drive to the

left of the monitor.

Position the disk so the metal shutter faces the drive.

Position the disk so the stamped arrow is on the top right side. In

other words, place the angled corner in the front bottom location.

Push the disk into the drive until it goes all the way in and clicks

into place.

c. Initialize the oscilloscope:

Press save/recall SETUP.

Press the main-menu button Recall Factory Setup.

Press the side-menu button OK Confirm Factory Init.

d. Modify default settings:

Set the vertical SCALE to 200 mV.

Set the horizontal SCALE for the M (main) time base to 200 ms.

Notice the waveform on the display now shows two cycles instead of

five.

Press SET LEVEL TO 50%.

Press CLEAR MENU to remove the menus from the screen.

e. Save the settings:

Press SETUP.

Press the main-menu button Save Current Setup; then press the

side-menu button To File.

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Brief Procedures

Turn the general purpose knob to select the file to save. Choose

TEK?????.SET (or fd0:, the floppy disk drive, hd0:, the optional

hard disk drive, or Zip:, if an external Zip drive is connected). With

this choice, you will save a file starting with TEK, then containing

5-numbers, and a .SET extension. For example, the first time you

run this on a blank, formatted disk or on the Example Programs

Disk, the oscilloscope will assign the name TEK00000.SET to your

file. If you ran the procedure again, the oscilloscope would

increment the name and call the file TEK00001.SET.

NOTE. If testing an external Zip drive, it must first be connected to the oscillo-

scope, then be powered on simultaneously with the oscilloscope, or immediately

after the oscilloscope is powered-on. This ensures proper communications are

set up between the oscilloscope and the Zip drive.

f. To test the optional hard disk drive or external Zip drive, choose either

the hard disk drive (hd0:), or the external Zip drive (Zip:). Then use the

general purpose knob to select the file to save. Save the file as in step e.

Press the side-menu button Save To Selected File.

2. Verify the file system works:

Press the main-menu button Recall Factory Setup and the side-menu

button OK Confirm Factory Init to restore the 500 ms time base and

the five cycle waveform.

Press the main-menu button Recall Saved Setup; then press the

side-menu button From File.

Turn the general purpose knob to select the file to recall. For example, if

you followed the instructions previously and saved the file to either the

floppy disk drive (fd0:), or the optional hard disk drive (hd0:), you had

the oscilloscope assign the name TEK00000.SET to your file.

Press the side-menu button Recall From Selected File.

Verify that the oscilloscope retrieved the saved setup from the disk. Do

this by noticing the horizontal SCALE for the M (main) time base is

again 200 ms and the waveform shows only two cycles just as it was

when you saved the setup.

3. Remove the test hookup:

Disconnect the probe from the channel input and the probe-compensa-

tion terminals.

Remove the floppy disk from the floppy disk drive.

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Performance Tests

This section contains a collection of procedures for checking that the TDS 500D,

TDS 600B, and TDS 700D Oscilloscopes perform as warranted.

The procedures are arranged in four logical groupings: Signal Acquisition System

Checks, Time Base System Checks, Triggering System Checks, and Output Ports

Checks. They check all the characteristics that are designated as checked in

Specifications. (The characteristics that are checked appear in boldface type

under Warranted Characteristics in Specifications).

STOP. These procedures extend the confidence level provided by the basic

procedures described on page 1–5. The basic procedures should be done first,

then these procedures performed if desired.

Prerequisites

The tests in this section comprise an extensive, valid confirmation of perform-

ance and functionality when the following requirements are met:

The cabinet must be installed on the oscilloscope.

You must have performed and passed the procedures under Self Tests, found

on page 1–5, and those under Functional Tests, found on page 1–7.

A signal-path compensation must have been done within the recommended

calibration interval and at a temperature within ±5_ C of the present

operating temperature. (If at the time you did the prerequisite Self Tests, the

temperature was within the limits just stated, consider this prerequisite met).

The oscilloscope must have been last adjusted at an ambient temperature

between +20_ C and +30_ C, must have been operating for a warm-up

period of at least 20 minutes, and must be operating at an ambient tempera-

ture between +4_ C and either +45_ C for the TDS 600B or +50_ C for the

TDS 500D and 700D. (The warm-up requirement is usually met in the

course of meeting the Self Tests and Functional Tests prerequisites listed

above).

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Performance Tests

Equipment Required

These procedures use external, traceable signal sources to directly check

warranted characteristics. The required equipment list follows this introduction.

Table 1–1: Test equipment

Item number and

description

Minimum requirements

Example

Purpose

1. Attenuator,10X

(two required)

Ratio: 10X; impedance 50 W; connec- Tektronix part number

Signal Attenuation

tors: female BNC input, male BNC

output

011-0059-02

2. Attenuator, 5X

Ratio: 5X; impedance 50 W; connec-

tors: female BNC input, male BNC

output

Tektronix part number

011-0060-02

Signal Attenuation

3. Adapter, BNC female-to- BNC female-to-Clip Leads

Clip Leads

Tektronix part number

013-0076-00

Signal Coupling for Probe

Compensator Output Check

4. Terminator, 50 W

Impedance 50 W; connectors: female Tektronix part number

Signal Termination for

Channel Delay Test

BNC input, male BNC output

011-0049-01

5. Cable, Precision 50 W

50 W, 36 in, male-to-male BNC

connectors

Tektronix part number

012-0482-00

Signal Interconnection

Various Accuracy Tests

Checking Trigger Sensitivity

Coaxial (two required)

6. Connector, Dual-Banana Female BNC-to-dual banana

(two required)

Tektronix part number

103-0090-00

7. Connector, BNC “T”

Male BNC-to-dual female BNC

Tektronix part number

103-0030-00

8. Coupler, Dual-Input

Female BNC-to-dual male BNC

Tektronix part number

067-0525-02

Checking Delay Between

Channels

9. Generator, DC Calibra-

tion

Variable amplitude to ±104 V; accura- Data Precision 8200

cy to 0.1%

Checking DC Offset, Gain,

and Measurement Accuracy

10. Generator, Calibration

500 mV square wave calibrator

amplitude; accuracy to 0.25%

Tegam/Tektronix PG 506A

Calibration Generator

To check accuracy of CH 3

Signal Out

1,2

11. Generator, Time Mark

(optional)

Variable marker frequency from 10 ms Tegam/Tektronix TG 501A

Checking Sample-Rate and

Delay-time Accuracy

1,2

to 10 ns; accuracy within 2 ppm

Time Mark Generator

12. Probe, 10X

A P6139A, P6243, P6245, or P6339A Tektronix part number

Signal Interconnection

probe

P6139A or P6245

13. 3.5 inch, 720 K or

1.44 Mbyte, DOS-com-

patible floppy disk

TDS Family Programmer Disk Checking File System Basic

(Tektronix part number

Functionality

063–3002–00), included with

User Manual (Tektronix part

number 071–0130-XX)

14. Generator, Sine Wave

250 kHz to at least 500 MHz (higher

for higher-bandwidth scopes). Vari-

Rohde & Schwarz SMT or

SMY

Checking Analog Bandwidth,

Trigger Sensitivity, Sample-

rate, External Clock, and

Delay-Time Accuracy

1,4

able amplitude from 60 mV to 2 V

p-p

into 50 W. Frequency accuracy >2.0%

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Performance Tests

Table 1–1: Test equipment (cont.)

Item number and

description

Minimum requirements

Example

Purpose

15. Meter, Level and Power Frequency range:10 MHz to 400 MHz. Rohde & Schwarz URV 35,

Checking Analog Bandwidth

and Trigger Sensitivity

1,4

Sensor

Amplitude range: 6 mV to 2 V

with NRV-Z8 power sensor

p-p

1,4

16. Splitter, Power

Frequency range: DC to 1 GHz.

Tracking: >2.0%

Rohde & Schwarz RVZ

Checking Analog Bandwidth

17. Adapter (four required)

18. Adapter

Male N-to-female BNC

Tektronix part number

103-0045-00

Female N-to-male BNC

Tektronix part number

103-0058-00

19. Generator, Video Signal Provides PAL compatible outputs

Tektronix TSG 121

Used to Test Video Option 05

Equipped Instruments Only

20. Oscillator, Leveled Sine

wave Generator

60 Hz Sine wave

Tegam/Tektronix SG 502 (if

available)

Used to Test Video Option 05

Equipped Instruments Only

1,2

21. Pulse Generator

Tektronix CFG280

(or Tegam/Tektronix PG 502) Equipped Instruments Only

Used to Test Video Option 05

22. Cable, Coaxial

(two required)

75 W, 36 in, male to male BNC

connectors

Tektronix part number

012-1338-00

Used to Test Video Option 05

Equipped Instruments Only

23. Terminator, 75 W

Impedance 75 W; connectors: female Tektronix part number

Used to Test Video Option 05

Equipped Instruments Only

(two required)

BNC input, male BNC output

011-0102-01

24. Generator, Optical Im-

pulse

850 nm optical impulse

Tektronix OIG501 Optical

Impulse Generator

Checking Option 3C

25. Generator, Optical Im-

pulse

1300 nm optical impulse

62.5 micron optical attenuator

FC-FC fiber cable

Tektronix OIG502 Optical

Impulse Generator

Checking Option 4C

26. Attenuator, Optical

Tektronix OA5022 Optical

Checking Option 3C and 4C

Attenuator

27. Cable, Fiber Optic

Tektronix part number

174-2322-00

28. Optical-to-Electrical

Converter

P6701B (used with Option 3C) or

P6703B (used with Option 4C)

optical-to-electrical converter

Tektronix part number

P6701B or P6703B

You can replace items 9, 10, 11, 14, 15, 16, and 20 with a Wavetek 9100 (with options 100 and 600) for 500 MHz oscillo-

scopes, or a Wavetek 9500 (with option 100) and output head appropriate for the bandwidth of the oscilloscope(s) being

tested.

Requires a TM 500 or TM 5000 Series Power Module Mainframe.

Warning: The P6243 and P6245 probes that may be used with this oscilloscope provide an extremely low loading

capacitance (<1 pF) to ensure the best possible signal reproduction. These probes should not be used to measure

signals exceeding ±8 V, or errors in signal measurement will be observed. Above 40 V, damage to the probe may result.

To make measurements beyond ±8 V, use either the P6139A probe (good to 500 V), or refer to the catalog for a recom-

mended probe.

If available, you can replace items 14, 15, and 16 with the following set of equipment for bandwidths up to 1 GHz:

a Tegam/Tektronix SG503 and SG504 with SG504 leveling head.

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Performance Tests

TDS 600B Test Record

Photocopy this and the next three pages and use them to record the performance

test results for your TDS 600B.

TDS 600B Test Record

Instrument Serial Number:

Temperature:

Certificate Number:

RH %:

Date of Calibration:

Technician:

TDS 600B Performance Test

Minimum

Incoming

Outgoing

Maximum

Offset Accuracy

CH1 Offset

+1 mV

+101 mV

+1.01 V

– 2.1 mV

– 75.6 mV

– 756 mV

__________

+ 2.1 mV

+ 75.6 mV

+ 756 mV

CH2 Offset

+1 mV

+101 mV

+1.01 V

– 2.1 mV

– 75.6 mV

– 756 mV

__________

+ 2.1 mV

+ 75.6 mV

+ 756 mV

CH3 or AX1

Offset

+1 mV

+101 mV

+1.01 V

– 2.1 mV

– 75.6 mV

– 756 mV

__________

+ 2.1 mV

+ 75.6 mV

+ 756 mV

CH4 or AX2

Offset

+1 mV

+101 mV

+1.01 V

– 2.1 mV

– 75.6 mV

– 756 mV

__________

+ 2.1 mV

+ 75.6 mV

+ 756 mV

DC Voltage Measurement Accuracy (Averaged)

CH1

CH2

5 mV Vert scale setting,

–5 Div position setting, +1 V offset

+ 1.0329 V

– 1.0471 V

+ 11.4165 V

– 11.7835 V

+ 17.102 V

– 18.899 V

+ 1.0329 V

– 1.0471 V

+ 11.4165 V

__________

+ 1.0471 V

– 1.0329 V

+ 11.7835 V

– 11.4165 V

+ 18.899 V

– 17.102 V

+ 1.0471 V

– 1.0329 V

+ 11.7835 V

5 mV Vert scale setting,

+5 Div position setting, –1 V offset

200 mV Vert scale setting,

–5 Div position setting, +10 V offset

200 mV Vert scale setting,

+5 Div position setting, –10 V offset

1.01 V Vert scale setting,

–5 Div position setting, +10 V offset

1.01 V Vert scale setting,

+5 Div position setting, –10 V offset

5 mV Vert scale setting,

–5 Div position setting, +1 V offset

5 mV Vert scale setting,

+5 Div position setting, –1 V offset

200 mV Vert scale setting,

–5 Div position setting, +10 V offset

1–18

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

TDS 600B Test Record (cont.)

Instrument Serial Number:

Temperature:

Certificate Number:

RH %:

Date of Calibration:

Technician:

TDS 600B Performance Test

Minimum

Incoming

Outgoing

Maximum

CH2

CH3

200 mV Vert scale setting,

+5 Div position setting, –10 V offset

– 11.7835 V

__________

– 11.4165 V

1.01 V Vert scale setting,

–5 Div position setting, +10 V offset

+ 17.102 V

– 18.899 V

+ 1.0329 V

– 1.0471 V

+ 11.4165 V

– 11.7835 V

+ 17.102 V

– 18.899 V

+ 1.0329 V

– 1.0471 V

+ 11.4165 V

– 11.7835 V

+ 17.102 V

– 18.899 V

__________

+ 18.899 V

– 17.102 V

+ 1.0471 V

– 1.0329 V

+ 11.7835 V

– 11.4165 V

+ 18.899 V

– 17.102 V

+ 1.0471 V

– 1.0329 V

+ 11.7835 V

– 11.4165 V

+ 18.899 V

– 17.102 V

1.01 V Vert scale setting,

+5 Div position setting, –10 V offset

5 mV Vert scale setting,

or AX1 –5 Div position setting, +1 V offset

CH3 5 mV Vert scale setting,

or AX1 +5 Div position setting, –1 V offset

CH3 200 mV Vert scale setting,

or AX1 –5 Div position setting, +10 V offset

CH3 200 mV Vert scale setting,

or AX1 +5 Div position setting, –10 V offset

CH3 1.01 V Vert scale setting,

or AX1 –5 Div position setting, +10 V offset

CH3 1.01 V Vert scale setting,

or AX1 +5 Div position setting, –10 V offset

CH4 5 mV Vert scale setting,

or AX2 –5 Div position setting, +1 V offset

CH4 5 mV Vert scale setting,

or AX2 +5 Div position setting, –1 V offset

CH4 200 mV Vert scale setting,

or AX2 –5 Div position setting, +10 V offset

CH4 200 mV Vert scale setting,

or AX2 +5 Div position setting, –10 V offset

CH4 1.01 V Vert scale setting,

or AX2 –5 Div position setting, +10 V offset

CH4 1.01 V Vert scale setting,

or AX2 +5 Div position setting, –10 V offset

Analog Bandwidth

CH1

CH2

100 mV

424 mV

__________

N/A

CH3

or AX1

CH4

100 mV

424 mV

__________

N/A

or AX2

1–19

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

TDS 600B Test Record (cont.)

Instrument Serial Number:

Temperature:

Certificate Number:

RH %:

Date of Calibration:

Technician:

TDS 600B Performance Test

Delay Between Channels

Time Base System

Minimum

Incoming

Outgoing

Maximum

N/A

__________

100 ps

Long Term Sample Rate/

Delay Time @ 500 ns/10 ms

–2.0 Div

__________

+2.0 Div

Trigger System Accuracy

Pulse-Glitch or Pulse-Width,

Hor. scale ≤ 1 ms

Lower Limit

3.5 ns

__________

6.5 ns

Upper Limit

Pulse-Glitch or Pulse-Width,

Hor. scale > 1 ms

Lower Limit

1.9 ms

__________

2.1 ms

Upper Limit

Main Trigger, DC Coupled, Positive Slope

Main Trigger, DC Coupled, Negative Slope

Delayed Trigger, DC Coupled, Positive Slope

Delayed Trigger, DC Coupled, Negative Slope

CH1 Sensitivity, 50 MHz, Main

9.863 V

__________

10.137 V

Pass/Fail

9.863 V

Pass/Fail

CH1 Sensitivity, 50 MHz, Delayed

CH1 AUX Trigger Input

CH1 Sensitivity, 1 GHz, Main

CH1 Sensitivity, 1 GHz, Delayed

Output Signal Checks

MAIN TRIGGER OUTPUT, 1 MW

High

Low

High ≥ 2.5 V

High ≥ 1.0 V

High ≥ 2.5 V

__________

Low ≤ 0.7 V

Low ≤ 0.25 V

Low ≤ 0.7 V

MAIN TRIGGER OUTPUT, 50 W

High

Low

__________

DELAYED TRIGGER OUTPUT, 50 W

__________

DELAYED TRIGGER OUTPUT, 1 MW

__________

1–20

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

TDS 600B Test Record (cont.)

Instrument Serial Number:

Temperature:

Certificate Number:

RH %:

Date of Calibration:

Technician:

TDS 600B Performance Test

CH 3 or AX1 SIGNAL OUTPUT, 1 MW

CH 3 or AX1 SIGNAL OUTPUT, 50 W

Probe Compensator Output Signal

Frequency (CH1 Freq).

Minimum

Incoming

Outgoing

Maximum

Pk-Pk ≥ 80 mV

Pk-Pk ≥ 40 mV

__________

Pk-Pk ≤ 120 mV

Pk-Pk ≤ 60 mV

950 Hz

495 mV

__________

1.050 kHz

505 mV

Voltage (difference)

1–21

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

TDS 500D/700D Test Record

Photocopy this and the next three pages and use them to record the performance

test results for your TDS 500D/700D. The TDS 794D Test Record begins on

page 1–26.

TDS 500D/700D Test Record

Instrument Serial Number:

Temperature:

Certificate Number:

RH %:

Date of Calibration:

Technician:

TDS 500D/700D Performance Test

Minimum

Incoming

Outgoing

Maximum

Offset Accuracy

CH1 Offset

+1 mV

+101 mV

+1.01 V

– 1.6 mV

– 25.1 mV

– 251 mV

__________

+ 1.6 mV

+ 25.1 mV

+ 251 mV

CH2 Offset

+1 mV

+101 mV

+1.01 V

– 1.6 mV

– 25.1 mV

– 251 mV

__________

+ 1.6 mV

+ 25.1 mV

+ 251 mV

CH3 or AX1 Offset +1 mV

+101 mV

– 1.6 mV

– 25.1 mV

– 251 mV

__________

+ 1.6 mV

+ 25.1 mV

+ 251 mV

+1.01 V

CH4 or AX2 Offset +1 mV

+101 mV

– 1.6 mV

– 25.1 mV

– 251 mV

__________

+ 1.6 mV

+ 25.1 mV

+ 251 mV

+1.01 V

DC Voltage Measurement Accuracy (Averaged)

CH1

CH2

5 mV Vert scale setting,

–5 Div position setting, +1 V offset

+ 1.0355 V

– 1.0445 V

+ 11.5195 V

– 11.6805 V

+ 17.621 V

– 18.379 V

+ 1.0355 V

– 1.0445 V

+ 11.5195 V

__________

+ 1.0445 V

– 1.0355 V

+ 11.6805 V

– 11.5195 V

+ 18.379 V

– 17.621 V

+ 1.0445 V

– 1.0355 V

+ 11.6805 V

5 mV Vert scale setting,

+5 Div position setting, –1 V offset

200 mV Vert scale setting,

–5 Div position setting, +10 V offset

200 mV Vert scale setting,

+5 Div position setting, –10 V offset

1.01 V Vert scale setting,

–5 Div position setting, +10 V offset

1.01 V Vert scale setting,

+5 Div position setting, –10 V offset

5 mV Vert scale setting,

–5 Div position setting, +1 V offset

5 mV Vert scale setting,

+5 Div position setting, –1 V offset

200 mV Vert scale setting,

–5 Div position setting, +10 V offset

1–22

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

TDS 500D/700D Test Record (cont.)

Instrument Serial Number:

Temperature:

Certificate Number:

RH %:

Date of Calibration:

Technician:

TDS 500D/700D Performance Test

Minimum

Incoming

Outgoing

Maximum

CH2

CH3

200 mV Vert scale setting,

+5 Div position setting, –10 V offset

– 11.6805 V

__________

– 11.5195 V

1.01 V Vert scale setting,

–5 Div position setting, +10 V offset

+ 17.621 V

– 18.379 V

+ 1.0355 V

– 1.0445 V

+ 11.5195 V

– 11.6805 V

+ 17.621 V

– 18.379 V

+ 1.0355 V

– 1.0445 V

+ 11.5195 V

– 11.6805 V

+ 17.621 V

– 18.379 V

__________

+ 18.379 V

– 17.621 V

+ 1.0445 V

– 1.0355 V

+ 11.6805 V

– 11.5195 V

+ 18.379 V

– 17.621 V

+ 1.0445 V

– 1.0355 V

+ 11.6805 V

– 11.5195 V

+ 18.379 V

– 17.621 V

1.01 V Vert scale setting,

+5 Div position setting, –10 V offset

5 mV Vert scale setting,

or AX1 –5 Div position setting, +1 V offset

CH3 5 mV Vert scale setting,

or AX1 +5 Div position setting, –1 V offset

CH3 200 mV Vert scale setting,

or AX1 –5 Div position setting, +10 V offset

CH3 200 mV Vert scale setting,

or AX1 +5 Div position setting, –10 V offset

CH3 1.01 V Vert scale setting,

or AX1 –5 Div position setting, +10 V offset

CH3 1.01 V Vert scale setting,

or AX1 +5 Div position setting, –10 V offset

CH4 5 mV Vert scale setting,

or AX2 –5 Div position setting, +1 V offset

CH4 5 mV Vert scale setting,

or AX2 +5 Div position setting, –1 V offset

CH4 200 mV Vert scale setting,

or AX2 –5 Div position setting, +10 V offset

CH4 200 mV Vert scale setting,

or AX2 +5 Div position setting, –10 V offset

CH4 1.01 V Vert scale setting,

or AX2 –5 Div position setting, +10 V offset

CH4 1.01 V Vert scale setting,

or AX2 +5 Div position setting, –10 V offset

Analog Bandwidth

CH1

CH2

CH3

100 mV

424 mV

__________

N/A

or AX1 100 mV

CH4

424 mV

__________

N/A

or AX2 100 mV

1–23

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

TDS 500D/700D Test Record (cont.)

Instrument Serial Number:

Temperature:

Certificate Number:

RH %:

Date of Calibration:

Technician:

TDS 500D/700D Performance Test

Delay Between Channels

Time Base System

Minimum

Incoming

Outgoing

Maximum

N/A

__________

50 ps

Long Term Sample Rate/

Delay Time @ 100 ns/10.0 ms

–2.5 Div

__________

+2.5 Div

Trigger System Accuracy

Pulse-Glitch or Pulse-Width,

Hor. scale ≤ 1 ms

Lower Limit

3.5 ns

__________

6.5 ns

Upper Limit

Pulse-Glitch or Pulse-Width,

Hor. scale > 1 ms

Lower Limit

1.9 ms

__________

2.1 ms

Upper Limit

Main Trigger, DC Coupled, Positive Slope

Main Trigger, DC Coupled, Negative Slope

Delayed Trigger, DC Coupled, Positive Slope

Delayed Trigger, DC Coupled, Negative Slope

CH1 Sensitivity, 50 MHz, Main

9.8853 V

Pass/Fail

__________

10.1147 V

Pass/Fail

CH1 Sensitivity, 50 MHz, Delayed

CH1 AUX Trigger Input

CH1 Sensitivity, full bandwidth, Main

CH1 Sensitivity, full bandwidth, Delayed

Output Signal Checks

MAIN TRIGGER OUTPUT, 1 MW

High

Low

High ≥ 2.5 V

High ≥ 1.0 V

High ≥ 2.5 V

__________

Low ≤ 0.7 V

Low ≤ 0.25 V

Low ≤ 0.7 V

MAIN TRIGGER OUTPUT, 50 W

High

Low

__________

DELAYED TRIGGER OUTPUT, 50 W

High

Low

__________

DELAYED TRIGGER OUTPUT, 1 MW

High

Low

__________

1–24

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

TDS 500D/700D Test Record (cont.)

Instrument Serial Number:

Temperature:

Certificate Number:

RH %:

Date of Calibration:

Technician:

TDS 500D/700D Performance Test

CH 3 or AX 1 SIGNAL OUTPUT, 1 MW

CH 3 or AX 1 SIGNAL OUTPUT, 50 W

Probe Compensator Output Signal

Frequency (CH1 Freq).

Minimum

Incoming

Outgoing

Maximum

Pk-Pk ≥ 88 mV

Pk-Pk ≥ 44 mV

__________

Pk-Pk ≤ 132 mV

Pk-Pk ≤ 66 mV

950 Hz

495 mV

__________

1.050 kHz

505 mV

Voltage (difference)

1–25

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

TDS 794D Test Record

Photocopy this and the next two pages and use them to record the performance

test results for your TDS 794D.

TDS 794D Test Record

Instrument Serial Number:

Temperature:

Certificate Number:

RH %:

Date of Calibration:

Technician:

TDS 794D Performance Test

Minimum

Incoming

Outgoing

Maximum

Offset Accuracy

CH1 Offset

CH2 Offset

CH3 Offset

CH4 Offset

+10 mV

+101 mV

– 2.5 mV

– 25.1 mV

__________

+ 2.5 mV

+ 25.1 mV

+10 mV

+101 mV

– 2.5 mV

– 25.1 mV

__________

+ 2.5 mV

+ 25.1 mV

+10 mV

+101 mV

– 2.5 mV

– 25.1 mV

__________

+ 2.5 mV

+ 25.1 mV

+10 mV

+101 mV

– 2.5 mV

– 25.1 mV

__________

+ 2.5 mV

+ 25.1 mV

DC Voltage Measurement Accuracy (Averaged)

CH1

CH2

10 mV Vert scale setting,

–5 Div position setting, +.5 V offset

+0.5755 V

–0.5845 V

+5.5345 V

–5.6655 V

+5.289 V

__________

+0.5845 V

–0.5755 V

+5.6655 V

–5.5345 V

+5.711 V

10 mV Vert scale setting,

+5 Div position setting, –.5 V offset

200 mV Vert scale setting,

0 Div position setting, +5 V offset

200 mV Vert scale setting,

0 Div position setting, –5 V offset

1 V Vert scale setting,

0 Div position setting, +2.5 V offset

1 V Vert scale setting,

0 Div position setting, –2.5 V offset

–5.711 V

–5.289 V

10 mV Vert scale setting,

–5 Div position setting, +.5 V offset

+0.5755 V

–0.5845 V

+5.5345 V

+0.5845 V

–0.5755 V

+5.6655 V

10 mV Vert scale setting,

+5 Div position setting, –.5 V offset

200 mV Vert scale setting,

0 Div position setting, +5 V offset

1–26

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

TDS 794D Test Record (cont.)

Instrument Serial Number:

Temperature:

Certificate Number:

RH %:

Date of Calibration:

Technician:

TDS 794D Performance Test

Minimum

Incoming

Outgoing

Maximum

CH2

CH3

CH4

200 mV Vert scale setting,

0 Div position setting, –5 V offset

–5.6655 V

__________

–5.5345 V

1 V Vert scale setting,

0 Div position setting, +2.5 V offset

+5.289 V

–5.711 V

+0.5755 V

–0.5845 V

+5.5345 V

–5.6655 V

+5.289 V

–5.711 V

+0.5755 V

–0.5845 V

+5.5345 V

–5.6655 V

+5.289 V

–5.711 V

__________

+5.711 V

–5.289 V

+0.5845 V

–0.5755 V

+5.6655 V

–5.5345 V

+5.711 V

–5.289 V

+0.5845 V

–0.5755 V

+5.6655 V

–5.5345 V

+5.711 V

–5.289 V

1 V Vert scale setting,

0 Div position setting, –2.5 V offset

10 mV Vert scale setting,

–5 Div position setting, +.5 V offset

10 mV Vert scale setting,

+5 Div position setting, –.5 V offset

200 mV Vert scale setting,

0 Div position setting, +5 V offset

200 mV Vert scale setting,

0 Div position setting, –5 V offset

1 V Vert scale setting,

0 Div position setting, +2.5 V offset

1 V Vert scale setting,

0 Div position setting, –2.5 V offset

10 mV Vert scale setting,

–5 Div position setting, +.5 V offset

10 mV Vert scale setting,

+5 Div position setting, –.5 V offset

200 mV Vert scale setting,

0 Div position setting, +5 V offset

200 mV Vert scale setting,

0 Div position setting, –5 V offset

1 V Vert scale setting,

0 Div position setting, +2.5 V offset

1 V Vert scale setting,

0 Div position setting, –2.5 V offset

Analog Bandwidth

CH1

CH2

CH3

CH4

100 mV

424 mV

N/A

__________

N/A

50 ps

Delay Between Channels

1–27

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

TDS 794D Test Record (cont.)

Instrument Serial Number:

Temperature:

Certificate Number:

RH %:

Date of Calibration:

Technician:

TDS 794D Performance Test

Minimum

Incoming

Outgoing

Maximum

Time Base System

Long Term Sample Rate/

Delay Time @ 100 ns/10.0 ms

–2.5 Div

__________

+2.5 Div

Trigger System Accuracy

Pulse-Glitch or Pulse-Width,

Hor. scale ≤ 1 ms

Lower Limit

3.5 ns

__________

6.5 ns

Upper Limit

Pulse-Glitch or Pulse-Width,

Hor. scale > 1 ms

Lower Limit

1.9 ms

__________

2.1 ms

Upper Limit

Main Trigger, DC Coupled, Positive Slope

Main Trigger, DC Coupled, Negative Slope

Delayed Trigger, DC Coupled, Positive Slope

Delayed Trigger, DC Coupled, Negative Slope

CH1 Sensitivity, 50 MHz, Main

4.8953 V

Pass/Fail

__________

5.1047 V

Pass/Fail

CH1 Sensitivity, 50 MHz, Delayed

CH1 AUX Trigger Input

CH1 Sensitivity, full bandwidth, Main

CH1 Sensitivity, full bandwidth, Delayed

Output Signal Checks

MAIN TRIGGER OUTPUT, 50 W

High

Low

High ≥ 1.0 V

__________

Low ≤ 0.25 V

DELAYED TRIGGER OUTPUT, 50 W

High

Low

High ≥ 1.0 V

__________

Low ≤ 0.25 V

CH 3 SIGNAL OUTPUT, 50 W

Probe Compensator Output Signal

Frequency (CH1 Freq).

Pk-Pk ≥ 44 mV

__________

Pk-Pk ≤ 66 mV

950 Hz

495 mV

__________

1.050 kHz

505 mV

Voltage (difference)

1–28

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

Signal Acquisition System Checks

These procedures check those characteristics that relate to the signal-acquisition

system and are listed as checked under Warranted Characteristics in Specifica-

tions. Refer to Table 1–1 on page 1–16 for test equipment specifications.

Check Offset Accuracy

(Zero Setting)

Equipment

required

None

Prerequisites

The oscilloscope must meet the prerequisites listed on page 1–15.

See Input Channels vs. Model on page 1–2.

1. Preset the instrument controls:

a. Initialize the oscilloscope:

Press save/recall SETUP.

Press the main-menu button Recall Factory Setup.

Press the side-menu button OK Confirm Factory Init.

Press CLEAR MENU to remove the menus from the screen.

b. Modify the default settings:

Press SHIFT; then press ACQUIRE MENU.

On the TDS 600B, press the main-menu button Mode; then press the

side-menu button Average 16.

On the TDS 500D and 700D, press the main-menu button Mode;

then press the side-menu button Hi Res.

Press CURSOR.

Press the main-menu button Function; then press the side-menu

button H Bars.

Press CLEAR MENU.

Be sure to disconnect any input signals from all four channels.

2. Confirm input channels are within limits for offset accuracy at zero offset:

Do the following substeps — test CH 1 first, skipping substep a, since CH 1

is already set up to be checked from step 1.

a. Select an unchecked channel: Press WAVEFORM OFF to remove the

channel just confirmed from the display. Then, press the front-panel

button that corresponds to the channel you are to confirm.

1–29

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

b. Set the vertical scale: Set the vertical SCALE to one of the settings

listed in Table 1–2 that is not yet checked. (Start with the first setting

listed).

Press VERTICAL MENU. Press the main-menu button Fine Scale.

Use the keypad to enter the vertical scale. For the 1 mV setting,

press 1, SHIFT, m, then ENTER. For the 101 mV setting, press

101, SHIFT, m, then ENTER. For the 1.01 V setting, press 1.01,

then ENTER.

Press CLEAR MENU.

Table 1–2: DC offset accuracy (zero setting)

TDS 500D/700D

(except TDS 794D)

offset accuracy

limits

Vertical

position and

offset setting

Vertical scale

setting

TDS 600B offset

accuracy limits

1 mV

±2.1 mV

±1.6 mV

±25.1 mV

±251 mV

101 mV

1.01 V

±75.6 mV

±756 mV

TDS 794D offset accuracy limits

10 mV

±2.5 mV

101 mV

±25.1 mV

Vertical position is set to 0 divisions and vertical offset to 0 V when the

oscilloscope is initialized in step 1.

c. Display the test signal: The waveform position and offset were

initialized for all channels in step 1 and are displayed as you select each

channel and its vertical scale.

d. Measure the test signal: Align the active cursor over the waveform by

rotating the general purpose knob. Ignore the other cursor. See

Figure 1–4.

e. Read the measurement results at the absolute (@:) cursor readout, not

the delta (D:) readout on screen. That is, read the offset relative to the

ground reference. See Figure 1–4.

f. Check against limits: Do the following subparts in the order listed.

CHECK that the measurement results are within the limits listed for

the current vertical scale setting.

1–30

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Performance Tests

Enter voltage on test record.

Repeat substeps b through f until all vertical scale settings listed in

Table 1–2, are checked for the channel under test.

Read the

measurement

results.

Align the active cursor

over the waveform.

Figure 1–4: Measurement of DC offset accuracy at zero setting – TDS 684B shown

g. Test all channels: Repeat substeps a through f for all input channels.

1–31

TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications

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Performance Tests

Check DC Voltage

Measurement Accuracy

WARNING. The generator is capable of outputting dangerous voltages. Be sure to

set the DC calibration generator to 0 volts before connecting, disconnecting,

and/or moving the test hookup during the performance of this procedure. Also,

check that the calibrator does not have shorting straps installed between the DC

and sense outputs or grounds.

Equipment

required

Two dual-banana connectors (Item 6)

One BNC T connector (Item 7)

One DC calibration generator (Item 9)

Two precision 50 W coaxial cables (Item 5)

The oscilloscope must meet the prerequisites listed on page 1–15

See Input Channels vs. Model on page 1–2.

Prerequisites

1. Install the test hookup and preset the instrument controls:

a. Hook up the test-signal source:

Set the output of a DC calibration generator to 0 volts.

Connect the output of a DC calibration generator through a

dual-banana connector followed by a 50 W precision coaxial cable to

one side of a BNC T connector. See Figure 1–5.

Connect the Sense output of the generator through a second

dual-banana connector followed by a 50 W precision coaxial cable to

the other side of the BNC T connector. Now connect the BNC T

connector to CH 1. See Figure 1–5.

Output Sense

Oscilloscope

DC Calibrator

Dual banana to

BNC adapters

BNC T

connector

50 W coaxial cables

Figure 1–5: Initial test hookup

1–32

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Performance Tests

b. Initialize the oscilloscope:

Press save/recall SETUP.

Press the main-menu button Recall Factory Setup.

Press the side-menu button OK Confirm Factory Init.

c. Modify the default settings:

Press SHIFT; then press ACQUIRE MENU.

Press the main-menu button Mode; then press the side-menu button

Average 16.

2. Confirm input channels are within limits for DC accuracy at maximum offset

and position: Do the following substeps — test CH 1 first, skipping substep

2a since CH 1 is already selected from step 1.

a. Select an unchecked channel:

Press WAVEFORM OFF to remove the channel just confirmed

from the display.

Press the front-panel button that corresponds to the channel you are

to confirm.

Set the generator output to 0 V.

Move the test hookup to the channel you selected.

b. Turn on the measurement Mean for the channel:

Press MEASURE, then press the main-menu button Select

Measrmnt for CHx.

Press the side-menu button more until the menu label Mean appears

in the side menu (its icon is shown at the left). Press the side-menu

button Mean.

Press CLEAR MENU.

c. Set the vertical scale: Set the vertical SCALE to one of the settings

listed in Table 1–3 that is not yet checked. (Start with the first setting

listed).

1–33

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Performance Tests

Table 1–3: DC Voltage measurement accuracy

Position

TDS 500D/700D

(except TDS 794D)

Accuracy limits

Scale

Offset Generator TDS 600B

setting setting Accuracy limits

setting

(Divs)

setting

5 mV

–5

+1 V

+1.040 V

–1.040 V

+11.6 V

–11.6 V

+18V

+1.0329 V to +1.0471 V

–1.0471 V to –1.0329 V

+1.0355 V to +1.0445 V

–1.0445 V to –1.0355 V

–1 V

200 mV –5

+10 V

–10 V

+10 V

–10 V

+11.4165 V to +11.7835 V +11.5195 V to +11.6805 V

–11.7835 V to –11.4165 V –11.6805 V to –11.5195 V

1.01 V –5

+17.102 V to +18.899 V

–18.899 V to –17.102 V

+17.621 V to +18.379 V

–18.379 V to –17.621 V

–18 V

TDS 794D Accuracy limits

+0.5755 V to +0.5845 V

–0.5845 V to –0.5755 V

+5.5345 V to +5.6655 V

–5.6655 V to –5.5345 V

+5.289 V to +5.711 V

10 mV –5

+0.5 V +0.58 V

–0.5 V –0.58 V

200 mV

+5 V

–5 V

+5.6 V

–5.6 V

1 V

+2.5 V +5.5 V

–2.5 V –5.5 V

–5.711 V to –5.289 V

d. Display the test signal:

Press VERTICAL MENU. Press the main-menu button Position.

Use the keypad to set vertical position to –5 divisions (press –5, then

ENTER, on the keypad). The baseline level will move off screen.

Press the main-menu button Offset.

Use the keypad to set vertical offset to the positive-polarity setting

listed in the table for the current vertical scale setting. The baseline

level will remain off screen.

Set the generator to the level and polarity indicated in the table for

the vertical scale, position, and offset settings you have made. The

DC test level should appear on screen. (If it doesn’t return, the DC

accuracy check has failed for the current vertical scale setting of the

current channel).

e. Measure the test signal: Press CLEAR MENU. Read the measurement

results at the Mean measurement readout. See Figure 1–6.

1–34

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Performance Tests

Turn on the

measurement called

mean and read the

results here.

Figure 1–6: Measurement of DC accuracy at maximum offset and position

f. Check against limits:

CHECK that the readout for the measurement Mean readout on

screen is within the limits listed for the current vertical scale and

position/offset/generator settings. Enter value on test record.

Repeat substep d, reversing the polarity of the position, offset, and

generator settings as is listed in the table.

CHECK that the Mean measurement readout on screen is within the

limits listed for the current vertical scale setting and position/offset/

generator settings. Enter value on test record.

Repeat substeps c through f until all vertical scale settings, listed in

Table 1–3, are checked for the channel under test.

g. Test all channels: Repeat substeps a through f for all four channels.

3. Disconnect the hookup:

a. Set the generator output to 0 V.

b. Disconnect the cable from the generator output at the input connector of

the channel last tested.

1–35

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Performance Tests

Check Analog Bandwidth

Equipment

required

One sine wave generator (Item 14)

One level meter and power sensor (Item 15)

One power splitter (Item 16)

One female N to male BNC adapter (Item 18)

Four male N to female BNC adapters (Item 17)

Two 50 W precision cables (Item 5)

Attenuators (Items 1 and 2)

Optional: One high-frequency leveled sine wave generator and its

leveling head – replaces items 14, 15, 16, 17, and 18

Prerequisites

See page 1–15

1. Install the test hookup and preset the instrument controls:

a. Initialize the oscilloscope:

Press save/recall SETUP. Press the main-menu button Recall

Factory Setup; then press the side-menu button OK Confirm

Factory Init.

b. Modify the default settings:

Press TRIGGER MENU.

Press the main-menu button Coupling. Then press the side menu

button Noise Rej.

Turn the horizontal SCALE knob to 50 ns. Press SHIFT; then press

ACQUIRE MENU.

Press the main-menu button Mode; then press the side-menu button

Average 16.

Press MEASURE. Press the main-menu button Level Setup; then

press the side-menu button Min-Max.

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Performance Tests

NOTE. The sine wave generator output amplitude must be leveled to within

0.35 db of the reference frequency (10 MHz) through the bandwidth frequency

listed in Table 1–4. The 0.35 db requirement is necessary to ensure a bandwidth

that meets Tektronix specifications.

You can perform bandwidth PV using an unleveled sine wave generator (with

amplitude error > 0.35 db). Under these conditions, the bandwidth PV is subject

to the flatness errors associated with the generator used.

Refer to the Sine Wave Generator Leveling Procedure on page 1–88 if your sine

wave generator does not have automatic output amplitude leveling.

c. Hook up the test-signal source: Connect the sine wave output of a

leveled sine wave generator to CH 1. Set the output of the generator to a

reference frequency of 10 MHz or less. See Figure 1–7.

For the optional setup using a leveled sine wave generator with a

leveling head, see Figure 1–8 and, if using this optional setup with the

example Tektronix SG 504, set the generator output to 6 MHz.

Sine Wave

Generator

Oscilloscope

Output

Figure 1–7: Initial test hookup

High Frequency Sine

Wave Generator

Oscilloscope

Output

Leveling head

Figure 1–8: Optional initial test hookup

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Performance Tests

2. Confirm the input channels are within limits for analog bandwidth: Do the

following substeps — test CH 1 first, skipping substeps a and b since CH 1

is already set up for testing from step 1.

a. Select an unchecked channel:

Press WAVEFORM OFF to remove the channel just confirmed

from display.

Press the front-panel button that corresponds to the channel you are

to confirm.

Move the leveling output of the sine wave generator to the channel

you selected.

b. Match the trigger source to the channel selected:

Press TRIGGER MENU. Press the main-menu button Source; then

press the side-menu button that corresponds to the channel selected.

c. Set its input impedance: (This substep is not required on the TDS 794D.)

Press VERTICAL MENU; then press the main-menu button

Coupling.

Press the side-menu W button to toggle it to the 50 W setting.

d. Set the vertical scale: Set the vertical SCALE to one of the settings

listed in Table 1–4 not yet checked. (Start with the 100 mV setting).

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Performance Tests

Table 1–4: Analog bandwidth

Test frequency

TDS 580D

TDS 520D

TDS 680B

TDS 684B

TDS 784D

TDS 540D

TDS 724D

TDS 754D

Reference amplitude Horizontal

TDS 620B

TDS 644B

(6 divisions)

600 mV

6 mV

scale

1 ns

Vertical scale

100 mV

1 mV

–3 db Limits

≥424 mV

≥4.24 mV

≥8.48 mV

≥21.2 mV

≥42.4 mV

≥84.8 mV

≥212 mV

≥848 mV

TDS 794D

2 GHz

1 GHz

500 MHz

250 MHz

300 MHz

450 MHz

500 MHz

450 MHz

500 MHz

600 MHz

750 MHz

1 GHz

2 mV

12 mV

5 mV

30 mV

10 mV

60 mV

2 GHz

20 mV

120 mV

300 mV

1.2 V

1 GHz

50 mV

1 GHz

200 mV

500 mV

1 GHz

3 V

1 GHz

≥2.12 V

1 V

6 V

1 GHz

≥4.24 V

If your generator cannot output 6 divisions of amplitude, set it to its maximum output. The –3 db limit can be calculated as:

0.707 reference amplitude.

e. Display the test signal: Do the following subparts to first display the

reference signal and then the test signal.

Press MEASURE; then press the main-menu button Select

Measrmnt for CHx.

Press the side-menu button more, if needed, until the menu label

Frequency appears in the side menu (its icon is shown at the left).

Press the side-menu button Frequency.

Press the side-menu button more until the menu label Pk-Pk

appears in the side menu (its icon is shown at the left). Press the

side-menu button Pk-Pk.

Press CLEAR MENU.

Set the generator output so the CHx Pk-Pk readout equals the

reference amplitude in Table 1–4 that corresponds to the vertical

scale set in substep d.

Press the front-panel button SET LEVEL TO 50% as necessary to

trigger a stable display. At full bandwidth, you may also want to

make small, manual adjustments to the trigger level. You can use the

TRIGGER LEVEL knob to do this. (Full bandwidth varies with

TDS model as is shown in Table 1–4).

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Performance Tests

f. Measure the test signal:

Set the frequency of the generator, as shown on screen, to the test

frequency in Table 1–4 that corresponds to the vertical scale set in

substep d. See Figure 1–9.

Set the horizontal SCALE to the horizontal scale setting in

Table 1–4 that corresponds to the vertical scale set in substep d.

Press SET LEVEL TO 50% as necessary to trigger the signal.

Read the results at the CHx Pk-Pk readout, which will automatically

measure the amplitude of the test signal. See Figure 1–9.

Read results.

Set the generator

(reference) frequency to

the test frequency from

Table 1–4.

Set the horizontal scale

from Table 1–4.

Figure 1–9: Measurement of analog bandwidth

g. Check against limits:

CHECK that the Pk-Pk readout on screen is within the limits listed

in Table 1–4 for the current vertical scale setting.

Enter voltage on test record.

When finished checking, set the horizontal SCALE back to the

50 ns setting.

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Performance Tests

STOP. Checking each channel’s bandwidth at all vertical scale settings is time

consuming and unnecessary. You may skip checking the remaining vertical scale

settings in Table 1–4 (that is, skip the following substep, h) if this oscilloscope

has performed as follows:

Passed the 100 mV vertical scale setting just checked in this

procedure.

Passed the Verify Internal Adjustment, Self Compensation, and

Diagnostics procedure found under Self Tests, on page 1–5.

NOTE. Passing the signal path compensation confirms the signal path for all

vertical scale settings for all channels. Passing the internal diagnostics ensures

that the factory-set adjustment constants that control the bandwidth for each

vertical scale setting have not changed.

h. Check remaining vertical scale settings against limits (optional):

If desired, finish checking the remaining vertical scale settings for

the channel under test by repeating substeps d through g for each of

the remaining scale settings listed in Table 1–4 for the channel under

test.

When doing substep e, skip the subparts that turn on the CHx Pk-Pk

measurement until you check a new channel.

Install/remove attenuators between the generator leveling head and

the channel input as needed to obtain the six division reference

signals listed in the table.

i. Test all channels: Repeat substeps a through g for all four channels.

3. Disconnect the hookup: Disconnect the test hook up from the input

connector of the channel last tested.

Check Delay Between

Channels

Equipment

required

One sine wave generator (Item 14)

One precision 50 W coaxial cable (Item 5)

One 50 W terminator (Item 4)

One dual-input coupler (Item 8)

See page 1–15

Prerequisites

See Input Channels vs. Model on page 1–2.

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Performance Tests

STOP. DO NOT use the vertical position knob to reposition any channel while

doing this check. To do so invalidates the test.

1. Install the test hookup and preset the instrument controls:

a. Initialize the front panel:

Press save/recall SETUP.

Press the main-menu button Recall Factory Setup.

Press the side-menu button OK Confirm Factory Init.

b. Modify the initialized front-panel control settings:

Do not adjust the vertical position of any channel during this

procedure.

Set the horizontal SCALE to 500 ps.

Press SHIFT; then press ACQUIRE MENU.

Press the main-menu button Mode, and then press the side-menu

button Average 16.

c. Hook up the test-signal source:

Connect the sine wave output of a sine wave generator to a 50 W

precision coaxial cable followed by a 50 W termination and a

dual-input coupler. (If checking a TDS 794D, substitute a power

divider and two 50 W coaxial cables for the 50 W termination and

dual-input coupler).

Connect the coupler to both CH 1 and CH 2. See Figure 1–10.

Sine Wave

Generator

Oscilloscope

Output

Dual input

coupler

50 W terminator

Figure 1–10: Initial test hookup

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Performance Tests

2. Confirm all four channels are within limits for channel delay:

a. Set up the generator: Set the generator frequency to 250 MHz and the

amplitude for about six divisions in CH 1.

Hint: As you are adjusting the generator amplitude, push SET LEVEL

TO 50% frequently to speed up the updating of the waveform amplitude

on screen.

b. The horizontal SCALE should already be set to 500 ps. On the

TDS 580D, TDS 784D, TDS 794D, and 600B, now set it to 200 ps. On

the TDS 520D, 540D, 724D, and 754D, push the front-panel ZOOM

button, press the side-menu On button, set the horizontal SCALE to

250 ps, and be sure the vertical scale factor is kept at 1.0X and the

horizontal scale factor is 2.0X.

c. Save a CH 2 waveform: Press CH 2. Be sure the vertical scale factor is

kept at 1.0X. Then press save/recall WAVEFORM. Now, press the

main-menu button Save Wfm; then press the side-menu button

To Ref 2.

d. Save CH 3 (AX1 on some TDS models) waveform:

Move the coupler from CH 2 to CH 3 (AUX1 on some TDS

models), so that CH 1 and CH 3 are driven. Press WAVEFORM

OFF. Press CH 3. Be sure the vertical scale factor is kept at 1.0X.

Then press the side-menu button To Ref 3.

e. Display all test signals:

Press WAVEFORM OFF to remove CH 3 (AX1 on some TDS

models) from the display.

Display the live waveform. Move the coupler from CH 3 to CH 4,

so that CH 1 and CH 4 are driven. (Use AUX1 and AUX2 instead of

CH3 and CH4 if your TDS model is so equipped). Press CH 4 to

display. Be sure the vertical scale factor is kept at 1.0X. See Figure

1–11 on page 1–44.

Display the reference waveforms. To do this, press the front-panel

button MORE. Press the main-menu buttons Ref 2 and Ref 3. You

may notice their overlapping ground reference indicators. See

Figure 1–11 on page 1–44.

f. Measure the test signal:

Locate the time reference points for these waveforms. Do this by

first identifying the point where the rising edge of the left-most

waveform crosses the center horizontal graticule line. Next, note the

corresponding time reference point for the right-most waveform. See

Figure 1–11 on page 1–44.

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Performance Tests

Press CURSOR.

Press the main-menu button Function; then press the side-menu

button V Bars.

Press CLEAR MENU.

Align one V bar cursor to the time reference point of the left-most

waveform edge and the other cursor to the time reference point of the

right-most waveform edge by rotating the General Purpose knob.

(Press SELECT to switch between the two cursors). See Figure

1–11 on page 1–44.

Read the measurement results at the D: cursor readout, not the @:

readout on screen.

Read results.

Display the waveforms.

Locate the time reference

points for these waveforms.

Align each cursor to the time

reference points

Figure 1–11: Measurement of channel delay – TDS 684B shown

g. Check against limits: CHECK that the cursor readout on screen is

≤100 ps for the TDS 600B or ≤50 ps for the TDS 500D/700D.

h. If the channel skew is within the limits, enter time on the test record and

proceed to step 3. Otherwise, proceed with steps i through p.

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Performance Tests

i. Use the cursors to measure the skew from CH1 to CH2, CH1 to CH3,

and CH1 to CH4 (use AX1 and AX2 instead of CH3 and CH4 if your

TDS model is so equipped). Write down these three numbers in the first

measurement column of Table 1–5. Note that these numbers may be

either positive or negative.

j. Repeat the procedure from step 1.c through 2.e.

k. Again use the cursors to measure the skew from CH1 to CH2, CH1 to

CH3, and CH1 to CH4. Write down these numbers in the second

measurement column of Table 1–5. Note that these numbers may be

either positive or negative.

l. Add the first CH1 to CH2 skew measurement to the second CH1 to CH2

skew measurement and divide the result by 2. Use Table 1–5.

m. Add the first CH1 to CH3 (AX1 on some TDS models) skew measure-

ment to the second CH1 to CH3 skew measurement and divide the result

by 2. Use Table 1–5.

n. Add the first CH1 to CH4 (AX2 on some TDS models) skew measure-

ment to the second CH1 to CH4 skew measurement and divide the result

by 2. Use Table 1–5.

o. Check against limits: CHECK that the largest of the three results from

steps l, m, and n is between –100 ps and + 100 ps for the TDS 600B or

between –50 ps and + 50 ps for the TDS 500D/700D.

p. Enter time on the test record.

Table 1–5: Delay between channels worksheet

Add first and

First

Second

Divide sum

by 2

second

measurement

Coupling

measurements

CH1 to CH2

skew

CH1 to CH3

skew

CH1 to CH4

skew

3. Disconnect the hookup: Disconnect the cable from the generator output at

the input connectors of the channels.

1–45

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Performance Tests

Time Base System Checks

These procedures check those characteristics that relate to the Main and Delayed

time base system and are listed as checked under Warranted Characteristics in

Specifications.

Check Accuracy for

Long-Term Sample Rate

and Delay Time

Equipment

required

One time-mark generator (Item 11), or

Sine wave generator (Item 14)

One 50 W, precision coaxial cable (Item 5)

Prerequisites

See page 1–15

Time Mark or

Sine Wave

Generator

Oscilloscope

Output

50 W coaxial cable

Figure 1–12: Initial test hookup

1. Install the test hookup and preset the instrument controls:

a. Hook up the test-signal source: Connect, through a 50 W precision

coaxial cable, the output of the generator to CH 1.

If using a time-mark generator, set the output for 10 ms markers.

If using a sine wave generator, set the output for 1.2 V and 500 kHz.

b. Initialize the oscilloscope:

Press save/recall SETUP. Press the main-menu button Recall

Factory Setup. Press the side-menu button OK Confirm Factory

Init.

c. Modify the initialized front-panel control settings:

Set the vertical SCALE to 200 mV (or 500 mV with the optional

Tektronix TG 501A Time Mark Generator).

Set the horizontal SCALE of the Main time base to 2 ms.

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Performance Tests

Press VERTICAL MENU; then press the main-menu button

Coupling. Press the side-menu button W to toggle it to the 50 W

setting. (This step is not required on the TDS 794D.)

Press SET LEVEL TO 50%.

Use the vertical POSITION knob to center the test signal on screen.

Press TRIGGER MENU; then press the main-menu button Mode

& Holdoff. Press the side-menu button Normal.

2. Confirm Main and Delayed time bases are within limits for accuracies:

a. Display the test signal:

Press HORIZONTAL MENU.

Set horizontal modes. To do this, press the main-menu button Time

Base. Press the side-menu buttons Delayed Only and Delayed Runs

After Main. See Figure 1–13.

b. Measure the test signal:

Set the horizontal SCALE of the D (delayed) time base to 500 ns for

the TDS 600B or to 100 ns for the TDS 500D/700D.

If using a time-mark generator, align the trigger T to the center

vertical graticule line by adjusting the horizontal POSITION. See

Figure 1–13 on page 1–48.

If using a sine wave generator, align the rising edge of the sine wave

on the center graticule crosshairs by adjusting the horizontal

POSITION.

Set delayed time to 10.000016 ms. Do this on the keypad by

pressing 10.000016, then SHIFT, then m followed by ENTER).

c. Check long-term sample rate and delay time accuracies against limits:

CHECK that the rising edge of the marker (or sine wave) crosses

the center horizontal graticule line at a point within either ±2.0

divisions, for the TDS 600B, or ±2.5 divisions, for the

TDS 500D/700D, of center graticule. See Figure 1–13.

Enter number of divisions on the test record.

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Performance Tests

Align the trigger T to the

center graticule line.

Set

horizontal

mode.

Check long–term sample

rates and delay time

Set horizontal scale

and delayed time.

accuracies against limits.

Figure 1–13: Measurement of accuracy – Long-term and delay time

3. Disconnect the hookup: Disconnect the cable from the generator output at

the input connector of CH 1.

1–48

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Performance Tests

Trigger System Checks

These procedures check those characteristics that relate to the Main and Delayed

trigger systems and are listed as checked in Specifications.

Check Accuracy (Time) for

Pulse-Glitch or

Equipment

required

One sine wave generator (Item 14)

One 10X attenuator (Item 1)

Pulse-Width Triggering

One 50 W, precision coaxial cable (Item 5)

Prerequisites

See page 1–15

1. Install the test hookup and preset the instrument controls:

a. Initialize the instrument:

Press save/recall SETUP.

Press the main-menu button Recall Factory Setup.

Press the side-menu button OK Confirm Factory Init.

b. Modify the default setup:

Set the horizontal SCALE to 10 ns on the TDS 600B and 12.5 ns on

the TDS 500D/700D.

Press VERTICAL MENU; then press the main-menu button

Coupling. Now press the side-menu button W to toggle it to the

50 W setting. (This step is not required on the TDS 794D.)

c. Hook up the test-signal source: Connect the output of the sine wave

generator (Item 14) to CH 1.

Do this through a 50 W precision coaxial cable, followed by a 10X

attenuator. See Figure 1–14. The 10X attenuator is optional if the SG503

is used.

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Performance Tests

Sine Wave Generator

Oscilloscope

Output

10XAttenuator

50 W coaxial cable

Figure 1–14: Initial test hookup

2. Confirm the trigger system is within time-accuracy limits for pulse-glitch or

pulse-width triggering (Horizontal Scale ≤1 ms):

a. Display the test signal: Set the output of the sine wave generator for a

100 MHz, five-division sine wave on screen. Press SET LEVEL TO

50%.

b. Set the trigger mode: Press TRIGGER MENU. Now press the

main-menu button Mode & Holdoff; then press the side-menu button

Normal.

c. Set upper and lower limits that ensure triggering: See Figure 1–15.

Press the main-menu button Type; then repeatedly press the same

button until Pulse is highlighted in the menu that pops up.

Press the main-menu button Class; then repeatedly press the same

button until Width is highlighted in the menu that pops up.

Press the main-menu button Trig When; then press the side-menu

button Within Limits.

Press the side-menu button Upper Limit. Use the keyboard to set

the upper limit to 10 ns: press 10, then SHIFT, then n, and ENTER.

Press the side-menu button Lower Limit. Use the keypad to set the

lower limit to 2 ns.

d. Change limits until triggering stops:

Press SET LEVEL TO 50%.

While doing the following subparts, monitor the display (it will stop

acquiring) and the front-panel light TRIG (it will extinguish) to

determine when triggering is lost.

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Performance Tests

Press the side-menu button Lower Limit.

Use the general purpose knob to increase the Lower Limit readout

until triggering is lost.

CHECK that the Lower Limit readout, after the oscilloscope loses

triggering, is within 3.5 ns to 6.5 ns, inclusive.

Enter time on test record.

Use the keypad to return the Lower Limit to 2 ns and reestablish

triggering.

Press the side-menu button Upper Limit; then use the general

purpose knob to slowly decrease the Upper Limit readout until

triggering is lost.

CHECK that the Upper Limit readout, after the oscilloscope loses

triggering, is within 3.5 ns to 6.5 ns, inclusive.

Enter time on test record.

Set upper

and lower

limits that

ensure

triggering.

Then change

limits until

triggering

stops.

Figure 1–15: Measurement of time accuracy for pulse and glitch triggering

3. Confirm the trigger system is within time-accuracy limits for pulse-glitch or

pulse-width triggering (horizontal scale >1 ms):

a. Set upper and lower limits that ensure triggering at 250 kHz:

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Performance Tests

Press the side-menu button Upper Limit. Use the keyboard to set

the upper limit to 4 ms.

Press the side-menu button Lower Limit. Use the keypad to set the

lower limit to 500 ns.

b. Display the test signal:

Set the horizontal SCALE to 5 ms.

Set the output of the sine wave generator for a 250 kHz,

five-division sine wave on screen. Set the vertical SCALE to 20 mV

(the waveform will overdrive the display).

Press SET LEVEL TO 50%.

c. Check against limits: Do the following subparts in the order listed.

Press the side-menu button Lower Limit.

Use the general purpose knob to increase Lower Limit readout until

triggering is lost.

CHECK that the Lower Limit readout, after the oscilloscope stops

triggering, is within 1.9 ms to 2.1 ms, inclusive.

Enter time on test record.

Use the keypad to return the Lower Limit to 500 ns and reestablish

triggering.

Press the side-menu button Upper Limit; then use the general

purpose knob to slowly decrease the Upper Limit readout until

triggering stops.

CHECK that the Upper Limit readout, after the oscilloscope loses

triggering, is within 1.9 ms to 2.1 ms, inclusive.

Enter time on test record.

4. Disconnect the hookup: Disconnect the cable from the generator output at

the input connector of CH 1.

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Performance Tests

Check Accuracy,

Trigger-Level or

Threshold, DC Coupled

Equipment

required

One DC calibration generator (Item 9)

One BNC T connector (Item 7)

Two 50 W, precision coaxial cables (Item 5)

Prerequisites

See page 1–15.

Oscilloscope

DC Calibrator

Dual banana to

BNC adapters

BNC T

connector

50 W coaxial cables

Figure 1–16: Initial test hookup

1. Install the test hookup and preset the instrument controls:

a. Hook up the test-signal source:

Set the output of the DC calibration generator to 0 volts.

Connect the output of the DC calibration generator, through a

dual-banana connector followed by a 50 W precision coaxial cable,

to one side of a BNC T connector.

Connect the Sense output of the generator, through a second

dual-banana connector followed by a 50 W precision coaxial cable,

to other side of the BNC T connector. Now connect the BNC T

connector to CH 1.

b. Initialize the oscilloscope:

Press save/recall Setup.

Press the main-menu button Recall Factory Setup.

Press the side-menu button OK Confirm Factory Init.

2. Confirm Main trigger system is within limits for Trigger-level/Threshold

accuracy:

a. Display the test signal:

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Performance Tests

Set the vertical SCALE to 200 mV.

Press VERTICAL MENU, then press the main-menu button

Position.

Set vertical position to –3 divisions (press –3, then ENTER, on the

keypad). The baseline level will move down three divisions. See

Figure 1–17 on page 1–55.

Press the main-menu button Offset.

Set vertical offset to +10 volts (+5 volts for the TDS 794D) with the

keypad. The baseline level will move off screen.

Set the standard output of the DC calibration generator equal to the

offset. The DC test level will appear on screen. See Figure 1–17.

b. Measure the test signal:

Press SET LEVEL TO 50%.

Press TRIGGER MENU.

Read the measurement results from the readout below the label

Level in the main menu, not the trigger readout in the graticule area.

c. Read results (Check against limits): See Figure 1–17.

CHECK that the Level readout in the main menu is within the

ranges listed in Table 1–6.

Table 1–6: Trigger level accuracy readout

Instrument

TDS 600B

Minimum

9.863 V

Maximum

10.137 V

10.1147 V

5.1047 V

TDS 500D/700D

TDS 794D

9.8853 V

4.8953 V

Enter voltage on test record.

Press the main-menu button Slope; then press the side-menu button

for negative slope. See icon at left. Repeat substep b.

CHECK that the Level readout in the main menu is within the

ranges listed in Table 1–6.

Enter voltage on test record.

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Performance Tests

Set vertical position to –3 divs.

Set vertical offset to +10 volts.

Set DC calibration generator

to equal offset (+10 V).

Read results.

Figure 1–17: Measurement of trigger-level accuracy

3. Confirm Delayed trigger system is within limits for Trigger-level/Threshold

accuracy:

a. Select the Delayed time base:

Press HORIZONTAL MENU.

Press the main-menu button Time Base.

Press the side-menu buttons Delayed Only and Delayed Trigger-

able.

Set D (delayed) horizontal SCALE to 500 ms.

b. Select the Delayed trigger system:

Press SHIFT; then press the front-panel DELAYED TRIG button.

Press the main-menu button Level.

c. Measure the test signal: Press the side-menu button SET TO 50%.

Read the measurement results in the side (or main) menu below the label

Level.

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Performance Tests

d. Check against limits: Do the following subparts in the order listed.

CHECK that the Level readout in the side menu is within the limits

listed in Table 1–7.

Table 1–7: Delayed trigger level accuracy readout

Instrument

TDS 600B

Minimum

9.863 V

Maximum

10.137 V

10.1147 V

5.1047 V

TDS 500D/700D

TDS 794D

9.8853 V

4.8953 V

Enter voltage on test record.

Press the main-menu button Slope; then press the side-menu button

for negative slope. See icon at left. Press the main-menu button

Level. Repeat substep c.

CHECK that the Level readout in the side menu is within the limits

listed in Table 1–7.

Enter voltage on test record.

4. Disconnect the hookup:

a. First set the output of the DC calibration generator to 0 volts.

b. Disconnect the cable from the generator output at the input connector of

CH 1.

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Performance Tests

Sensitivity, Edge Trigger,

DC Coupled

Equipment

required

One sine wave generator (Item 14)

Two precision 50 W coaxial cables (Item 5)

One 10X attenuator (Item 1)

One BNC T connector (Item 7)

One 5X attenuator (Item 2)

Prerequisites

See page 1–15.

1. Install the test hookup and preset the instrument controls:

a. Initialize the oscilloscope:

Press save/recall SETUP.

Press the main-menu button Recall Factory Setup.

Press the side-menu button OK Confirm Factory Init.

b. Modify the initialized front-panel control settings:

Set the horizontal SCALE for the M (main) time base to 20 ns on

the TDS 600B or 25 ns on the TDS 500D/700D.

Press HORIZONTAL MENU; then press the main-menu button

Time Base.

Press the side-menu button Delayed Only; then press the side-menu

button Delayed Triggerable.

Set the horizontal SCALE for the D (delayed) time base to 20 ns on

the TDS 600B or 25 ns on the TDS 500D/700D; then press the

side-menu button Main Only.

Press TRIGGER MENU; then press the main-menu button Mode

& Holdoff. Press the side-menu button Normal.

Press VERTICAL MENU; then press the main-menu button

Coupling. Press the side-menu button W to select the 50 W setting.

(This step is not required on the TDS 794D.)

Press SHIFT; then press ACQUIRE MENU. Press the main-menu

button Mode; then press the side-menu button Average 16.

c. Hook up the test-signal source:

Connect the signal output of the generator to a BNC T connector.

Connect one output of the T connector to CH 1 through a 50 W

precision coaxial cable. Connect the other output of the T connector

to the AUX TRIG INPUT at the rear panel. See Figure 1–18.

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Performance Tests

To AUX TRIG INPUT

on rear panel

Sine Wave

Generator

Oscilloscope

Figure 1–18: Initial test hookup

2. Confirm Main and Delayed trigger systems are within sensitivity limits

(50 MHz):

a. Display the test signal:

Set the generator frequency to 50 MHz.

Press MEASURE.

Press the main-menu button Level Setup; then press the side-menu

button Min-Max.

Press the main-menu button Select Measrmnt for Ch1.

Press the side-menu button –more– until Amplitude appears in the

side menu (its icon is shown at the left). Press the side-menu button

Amplitude.

Press SET LEVEL TO 50%.

Press CLEAR MENU.

Set the test signal amplitude for about three and a half divisions on

screen. Now fine adjust the generator output until the CH 1

Amplitude readout indicates the amplitude is 350 mV. Readout may

fluctuate around 350 mV.

Disconnect the 50 W precision coaxial cable at CH 1 and reconnect

it to CH 1 through a 10X attenuator.

b. Check the Main trigger system for stable triggering at limits:

Read the following definition: A stable trigger is one that is

consistent; that is, one that results in a uniform, regular display

triggered on the selected slope (positive or negative). This display

should not have its trigger point switching between opposite slopes,

nor should it roll across the screen. At horizontal scale settings of

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Performance Tests

2 ms/division and faster, TRIG’D will remain constantly lighted. It

will flash for slower settings.

Press TRIGGER MENU; then press the main-menu button Slope.

Press SET LEVEL TO 50%. Adjust the TRIGGER LEVEL knob

so that the TRIG’D light is on. Set the level to near the middle of

the range where the TRIG’D light is on. CHECK that the trigger is

stable for the test waveform on both the positive and negative slopes.

(Use the side menu to switch between trigger slopes; use the

TRIGGER LEVEL knob to stabilize the trigger if required.)

Enter pass/fail result for main trigger on the test record.

Leave the Main trigger system triggered on the positive slope of the

waveform before continuing to the next step.

Check if stable trigger.

Figure 1–19: Measurement of trigger sensitivity – 50 MHz results shown on a

TDS 684B screen

c. Check Delayed trigger system for stable triggering at limits: Do the

following subparts in the order listed.

Press HORIZONTAL MENU; then press the main-menu button

Time Base. Press the side-menu button Delayed Only; then press

Delayed Triggerable in the same menu.

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Performance Tests

Press SHIFT; then press DELAYED TRIG. Press the main-menu

button Level.

Press the side-menu button SET TO 50%.

CHECK that a stable trigger is obtained for the test waveform for

both the positive and negative slopes of the waveform. Use the

TRIGGER LEVEL knob to stabilize the Main trigger. Use the

general purpose knob to stabilize the Delayed trigger. Press the

main-menu button Slope; then use the side menu to switch between

trigger slopes. See Figure 1–19.

Enter pass/fail result for delayed trigger on the test record.

Leave the Delayed trigger system triggered on the positive slope of

the waveform before continuing to the next step. Also, return to the

main time base: Press HORIZONTAL MENU; then press the

main-menu button Time Base. Press the side-menu button Main

Only.

Press CLEAR MENU.

3. Confirm the AUX Trigger input:

a. Display the test signal:

Remove the 10X attenuator and reconnect the cable to CH 1.

Set the test signal amplitude for about 2.5 divisions on screen.

Now fine adjust the generator output until the CH 1 Amplitude

readout indicates the amplitude is 250 mV. (Readout may fluctuate

around 250 mV).

b. Check the AUX trigger source for stable triggering at limits: Do the

following in the order listed.

Use the definition for stable trigger from step 2.

Press TRIGGER MENU; then press the main-menu button Source.

Press the side-menu button –more– until the side-menu label

DC Aux appears; then press DC Aux.

Press SET LEVEL TO 50%. CHECK that a stable trigger is

obtained for the test waveform on both the positive and negative

slopes. Press the main-menu button Slope; then use the side menu to

switch between trigger slopes. Use the TRIGGER LEVEL knob to

stabilize the trigger if required.

Enter the pass/fail result on the test record.

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Performance Tests

Leave the Main trigger system triggered on the positive slope of the

waveform before proceeding to the next check.

Press the main-menu button Source; then press the side-menu button

–more– until CH 1 appears. Press CH 1.

4. Confirm that the Main and Delayed trigger systems are within sensitivity

limits (full bandwidth):

a. Hook up the test-signal source: Disconnect the hookup installed in

step 1. Connect the signal output of a high-frequency sine wave

generator to CH 1. Some TDS models need a high frequency

(>500 MHz) generator; see footnotes 1 and 4 in Table 1–1.

b. Set the Main and Delayed Horizontal Scales:

Set the horizontal SCALE to 500 ps for the M (Main) time base.

Press HORIZONTAL MENU. Now press the main-menu button

Time base; then press the side-menu button Delayed Triggerable.

Press the side-menu button Delayed Only.

Set the horizontal SCALE to 500 ps for the D (Delayed) time base.

Press the side-menu button Main Only.

c. Display the test signal:

Set the generator frequency to full bandwidth as follows:

TDS 794D:

2 GHz

TDS 580D, 680B, 684B, & 784D:

TDS 520D, 540D, 620B, 644B, 724D, & 754D:

1 GHz

500 MHz

Set the test signal amplitude for about five divisions on screen. Now

fine adjust the generator output until the CH 1 Amplitude readout

indicates the amplitude is 500 mV. (Readout may fluctuate around

500 mV).

Disconnect the leveling head at CH 1 and reconnect it to CH 1

through a 5X attenuator.

d. Repeat step 4, substeps b and c only, since only the full bandwidth is to

be checked here.

NOTE. You just checked the trigger sensitivity. If desired, you may repeat steps 1

through 4 for the other channels (CH2, CH3, and CH4).

5. Disconnect the hookup: Disconnect the cable from the channel last tested.

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Performance Tests

Output Signal Checks

The procedure that follows checks those characteristics of the output signals that

are listed as checked under Warranted Characteristics in Specifications. The

oscilloscope outputs these signals at its front and rear panels.

Check Outputs — CH 3

(AUX 1 on some models)

Main and Delayed Trigger

Equipment

required

Two precision 50 W coaxial cables (Item 5)

One calibration generator (Item 10)

Prerequisites

See page 1–15. Also, the oscilloscope must have passed Check DC

Voltage Measurement Accuracy on page 1–32.

See Input Channels vs. Model on page 1–2.

1. Install the test hookup and preset the instrument controls:

Calibration

Generator

To MAIN

TRIGGER

OUT

Oscilloscope

50 W coaxial cables

Figure 1–20: Initial test hookup

a. Hook up test-signal source 1:

Connect the standard amplitude output of a calibration generator

through a 50 W precision coaxial cable to CH 3 (AUX1 on some

TDS models).

Set the output of the calibration generator to 0.500 V.

b. Hook up test-signal source 2: Connect the Main Trigger Out at the rear

panel to CH 2 through a 50 W precision cable.

c. Initialize the oscilloscope:

Press save/recall SETUP.

Press the main-menu button Recall Factory Setup.

Press the side-menu button OK Confirm Factory Init.

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Performance Tests

d. Modify the initialized front-panel control settings:

Press WAVEFORM OFF to turn off CH 1.

Press CH 3 (AUX 1 on some TDS models) to display that channel.

If necessary, adjust the calibration generator output for 5 divisions of

amplitude. (With the 50W input of the TDS 794D, you may need to

double the output of the generator to get 5 divisions of amplitude.)

Set the horizontal SCALE to 200 ms.

Press SHIFT; then press ACQUIRE MENU.

Press the main-menu button Mode; then press the side-menu button

Average.

Select 64 averages. Do this with the keypad or the general purpose

knob.

2. Confirm Main and Delayed Trigger outputs are within limits for logic levels:

a. Display the test signal:

Press WAVEFORM OFF to turn off CH 3.

Press CH 2 to display that channel.

Set the vertical SCALE to 1 V.

Use the vertical POSITION knob to center the display on screen.

b. Measure logic levels:

Press MEASURE; then press the main-menu button Select

Measurement for Ch2.

Select high and low measurements. To do this, repeatedly press the

side-menu button –more– until High and Low appear in the side

menu (their icons are shown at the left). Press both side-menu

buttons High and Low.

c. Check Main Trigger output against limits:(Skip the first three subparts

of this substep for the TDS 794D only.)

CHECK that the Ch2 High readout is ≥2.5 volts and that the Ch2

Low readout is ≤0.7 volts. See Figure 1–21.

Enter high and low voltages on test record.

Press VERTICAL MENU; then press the main-menu button

Coupling. Now press the side-menu button W to toggle it to the

50 W setting.

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Performance Tests

CHECK that the Ch2 High readout is ≥1.0 volt and that the Ch2

Low readout ≤0.25 volts.

Enter high and low voltages on the test record.

Check output

Figure 1–21: Measurement of main trigger out limits

d. Check Delayed Trigger output against limits: See Figure 1–21.

Move the precision 50 W cable from the rear-panel Main Trigger

Output BNC to the rear-panel Delayed Trigger Output BNC.

CHECK that the Ch2 High readout is ≥1.0 volt and that the Ch2

Low readout ≤0.25 volts.

Enter high and low voltages on test record.

Press the side-menu button W to select the 1 MW setting. (This step

is not required on the TDS 794D – proceed to step 3.)

Press CLEAR MENU.

CHECK that the Ch2 High readout is ≥2.5 volts and that the Ch2

Low readout is ≤0.7 volts.

Enter high and low voltages on test record.

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Performance Tests

3. Confirm CH 3 (AUX 1 on some TDS models) output is within limits for gain:

a. Measure gain:

Move the precision 50 W cable from the rear-panel DELAYED

TRIGGER OUTPUT BNC to the rear-panel CH 3/AUX 1 BNC

(SIGNAL OUT on some models).

Push TRIGGER MENU.

Press the main-menu button Source.

Press the side-menu button Ch3.

(Ax1 on some TDS models)

Set vertical SCALE to 100 mV.

Press SET LEVEL TO 50%.

Press MEASURE; then press the main-menu button Select

Measrmnt for Ch2.

Repeatedly press the side-menu button –more– until Pk-Pk appears

in the side menu (its icon is shown at the left). Press the side-menu

button Pk-Pk.

Press CLEAR MENU.

b. Check against limits: (Skip the first four subparts of this substep for the

TDS 794D only.)

CHECK that the readout Ch2 Pk-Pk is between 80 mV and 120 mV,

inclusive, for the TDS 600B or is between 88 mV and 132 mV,

inclusive, for the TDS 500D/700D.

Enter voltage on test record.

Press VERTICAL MENU; then press the side-menu button W to

toggle to the 50 W setting.

Press CLEAR MENU.

CHECK that the readout Ch2 Pk-Pk is between 40 mV and 60 mV,

inclusive, for the TDS 600B or is between 44 mV and 66 mV,

inclusive, for the TDS 500D/700D.

Enter voltage on test record.

4. Disconnect the hookup: Disconnect the cables from the channel inputs and

the rear panel outputs.

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Performance Tests

Check Probe

Compensator Output

Equipment

required

One female BNC to clip adapter (Item 3)

Two dual-banana connectors (Item 6)

One BNC T connector (Item 7)

Two precision 50 W coaxial cables (Item 5)

One DC calibration generator (Item 9)

Prerequisites

See page 1–15. Also, the oscilloscope must have passed Check

Accuracy For Long-Term Sample Rate, Delay Time, and Delta Time

Measurements on page 1–46.

1. Install the test hookup and preset the instrument controls:

a. Hook up test-signal:

Connect one of the 50 W cables to CH 1. See Figure 1–22.

Connect the other end of the cable just installed to the female

BNC-to-clips adapter. See Figure 1–22.

Connect the red clip on the adapter just installed to the PROBE

COMPENSATION SIGNAL on the front panel; connect the black

clip to PROBE COMPENSATION GND. See Figure 1–22.

Oscilloscope

Black lead

to GND

Female BNC to

clip adapter

50 W coaxial cable

Figure 1–22: Initial test hookup

b. Initialize the oscilloscope:

Press save/recall SETUP.

Press the main-menu button Recall Factory Setup.

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Performance Tests

Press the side-menu button OK Confirm Factory Init.

c. Modify the initialized front-panel control settings:

Set the horizontal SCALE to 200 ms.

Press SET LEVEL TO 50%.

Use the vertical POSITION knob to center the display on screen.

Press SHIFT; then press ACQUIRE MENU.

Press the main-menu button Mode; then press the side-menu button

Average.

Select 128 averages with the keypad or the general purpose knob.

2. Confirm that the Probe Compensator signal is within limits for frequency:

a. Measure the frequency of the probe compensation signal:

Press MEASURE; then press the main-menu button Select

Measrmnt for Ch1.

Repeatedly press the side-menu button –more– until Frequency

appears in the side menu (its icon is shown at the left). Press the

side-menu button Frequency.

b. Check against limits:

CHECK that the CH 1 Freq readout is within 950 Hz to 1.050 kHz,

inclusive. See Figure 1–23.

Enter frequency on test record.

Press MEASURE; then press the main-menu button Remove

Measrmnt. Press the side-menu Measurement 1.

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Performance Tests

Figure 1–23: Measurement of probe compensator frequency

c. Save the probe compensation signal in reference memory:

Press SAVE/RECALL WAVEFORM; then press the main-menu

button Save Wfm Ch 1.

Press the side-menu button To Ref 1 to save the probe compensation

signal in reference 1.

Disconnect the cable from CH 1 and the clips from the probe

compensation terminals.

Press MORE; then press the main-menu button Ref 1 to displayed

the stored signal.

Press CH 1.

d. Hook up the DC standard source:

Set the output of a DC calibration generator to 0 volts.

Connect the output of a DC calibration generator through a

dual-banana connector followed by a 50 W precision coaxial cable to

one side of a BNC T connector. See Figure 1–24.

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Performance Tests

Connect the Sense output of the generator through a second

dual-banana connector followed by a 50 W precision coaxial cable to

the other side of the BNC T connector. Now connect the BNC T

connector to CH 1. See Figure 1–24.

Oscilloscope

DC Calibrator

Dual banana to

BNC adapters

BNC T

connector

50 W coaxial cables

Figure 1–24: Subsequent test hookup

e. Measure amplitude of the probe compensation signal:

Press SHIFT; then press ACQUIRE MENU. Press the side-menu

button AVERAGE then enter 16 using the keypad or the general

purpose knob.

Adjust the output of the DC calibration generator until it precisely

overlaps the top (upper) level of the stored probe compensation

signal. (This value will be near 500 mV).

Record the setting of the DC generator.

Adjust the output of the DC calibration generator until it precisely

overlaps the base (lower) level of the stored probe compensation

signal. (This value will be near zero volts).

Record the setting of the DC generator.

f. Press CLEAR MENU to remove the menus from the display. See

Figure 1–25.

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Performance Tests

Figure 1–25: Measurement of probe compensator amplitude

g. Check against limits:

Subtract the value just obtained (base level) from that obtained

previously (top level).

CHECK that the difference obtained is within 495 mV to 505 mV,

inclusive.

Enter voltage difference on test record.

3. Disconnect the hookup: Disconnect the cable from CH 1.

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Performance Tests

Option 05 Video Trigger Checks

(Not Available on TDS 794D)

Check Video Trigger

Equipment

required

PAL signal source (Item 19)

60 Hz. sine wave generator (Item 20)

Pulse generator (Item 21)

Two 75 W cables (Item 22)

Two 75 W terminators (Item 23)

One BNC T connector (Item 7)

One precision 50 W coaxial cable (Item 5)

50 W terminator (Item 4)

Prerequisites

See page 1–15. These prerequisites include running the signal path

compensation routine.

1. Set up the oscilloscope to factory defaults by completing the following steps:

a. Press save/recall SETUP.

b. Press the main-menu Recall Factory Setup.

c. Press the side-menu OK Confirm Factory Init.

d. Wait for the Clock Icon to leave the screen.

e. CONFIRM the oscilloscope is setup as shown below.

Channel: CH1

Volt/div: 100 mV

Horizontal scale: 500 ms/div

2. Set up the oscilloscope for TV triggers by completing the following steps:

a. Press TRIGGER MENU.

b. Press the main-menu Type pop-up until you select Video.

c. Press the main-menu Standard pop-up until you select 625/PAL.

d. Press the main-menu Line.

e. Use the keypad to set the line number to 7 (press 7, then ENTER).

f. Press VERTICAL MENU.

g. Press the main-menu Bandwidth.

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Performance Tests

h. Select 250 MHz from the side menu.

i. Press the main-menu Fine Scale.

j. Use the keypad to set the fine scale to 282 mV (press 282, SHIFT, m,

then ENTER).

k. Press HORIZONTAL MENU.

l. Press the main-menu Horiz Scale.

m. Use the keypad to set the horizontal scale to 200 ns (press 200, SHIFT,

n, then ENTER).

3. Check Jitter vs. Signal Amplitude

a. Set up equipment for Jitter Test. See Figure 1–26.

Connect one of the rear panel composite outputs marked COMPST

on the TSG121 through a 75 W cable and a 75 W terminator to the

CH1 input of the oscilloscope.

Press the 100% FIELD control (the fourth TSG121 front-panel

button from the left) of the PAL signal source.

PAL Signal

Source

Oscilloscope

COMPST

75 W terminator

75 W cable

Figure 1–26: Jitter test hookup

b. CHECK that the oscilloscope lights up its front panel TRIG’D LED and

it displays the waveform on screen. See Figure 1–27.

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Figure 1–27: Jitter test displayed waveform – TDS 684B shown

c. Press SHIFT; then press ACQUIRE MENU.

d. Press the main-menu Mode.

e. Select the side-menu Average. It should be already set to 16.

f. Press the main-menu Create Limit Test Template.

g. Press the side-menu V Limit.

h. Use the keypad to set V Limit to 180 mdiv (press 180, SHIFT, m, then

ENTER).

i. Press the side-menu OK Store Template.

j. Press MORE.

k. Press the main-menu Ref1.

l. Press CH1.

m. Press SHIFT; then press ACQUIRE MENU.

n. Press the main-menu Limit Test Setup.

o. Toggle the side-menu Limit Test to ON.

p. Toggle the side-menu Ring Bell if Condition Met to ON.

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q. Press the main-menu Mode.

r. Press the side-menu Envelope.

s. Use the keypad to set envelope to use 100 acquisitions (press 100, then

ENTER).

t. Press the main-menu Stop After button.

u. Press the side-menu Single Acquisition Sequence.

v. Confirm that the oscilloscope successfully makes 100 acquisitions. If not

successful, the oscilloscope bell will ring. When the word Run in the top

left corner of the display changes to STOP, the test is complete. See

Figure 1–28.

Stop shows test complete

Figure 1–28: Jitter test when completed – TDS 684B shown

w. Press the main-menu Limit Test Setup.

x. Toggle the side-menu Ring Bell if Condition Met to OFF.

y. Toggle the side-menu Limit Test to OFF.

4. Check Triggered Signal Range.

Set up oscilloscope for Triggered Signal Test.

a. Press MORE.

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Performance Tests

b. Press WAVEFORM OFF.

c. Press HORIZONTAL MENU.

d. Use the keypad to set horizontal scale (/div) to 50 ms (press 50, SHIFT,

m, then ENTER).

e. Press SHIFT; then press ACQUIRE MENU.

f. Press the main-menu Stop After.

g. Press the side-menu RUN/STOP button only.

h. Press the main-menu Mode.

i. Press the side-menu Sample.

j. Press RUN/STOP.

k. Press VERTICAL MENU.

l. Use the keypad to set fine scale to 300 mV (press 300, SHIFT, m, then

ENTER).

m. CONFIRM that the TRIG’D LED stays lighted and that the waveform

on screen is stable. Also, CONFIRM that the waveform on the screen

has one positive pulse and a number of negative pulses. See Figure 1–29.

Positive pulse

Negative pulses

Figure 1–29: Triggered signal range test – 300 mV

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n. Use the keypad to set the fine scale to 75 mV (press 75, SHIFT, m, then

ENTER).

o. CONFIRM that the TRIG’D LED stays lighted and that the waveform

on screen is stable. That is, it does not move horizontally or vertically.

Also, CONFIRM that the waveform on the screen has one positive pulse

and a number of negative pulses. See Figure 1–30.

Positive pulse

Negative pulses

Figure 1–30: Triggered signal range test – 75 mV

p. Disconnect all test equipment (TSG121) from the oscilloscope.

5. Check 60 Hz Rejection.

a. Set up oscilloscope for 60 Hz Rejection Test:

Use the keypad to set the Ch1 Fine Scale to 282 mV (press 282,

SHIFT m, then ENTER).

Press WAVEFORM OFF.

Press CH2.

Press VERTICAL MENU.

Use the keypad set the fine scale to 2 V (press 2, then ENTER).

Press HORIZONTAL MENU.

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Performance Tests

Use the keypad to set the horizontal scale (/div) to 5 ms (press 5,

SHIFT, m, then ENTER).

b. Set up 60 Hz signal generator:

Connect the output of the signal generator to the CH2 input through

a 50 W cable. See Figure 1–31.

Oscilloscope

Signal Generator

Output

50 W cable

Figure 1–31: 60 Hz Rejection test hookup

Adjust the signal generator for three vertical divisions of 60 Hz

signal. See Figure 1–32. The signal will not be triggered. That is, it

will run free.

Figure 1–32: 60 Hz Rejection test setup signal

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c. Check 60 Hz rejection:

Use the keypad to set the horizontal scale (/div) to 50 ms (press 50,

SHIFT, m, then ENTER).

Reconnect the output of the signal generator. Connect the composite

signal connector of the PAL signal source (labeled COMPST on the

TSG 121) to a 75 W cable and a 75 W terminator. Connect both

signals to the CH1 input through a BNC T. See Figure 1–33.

Press VERTICAL MENU.

If needed, press the main-menu Fine Scale.

Use the keypad to set fine scale to 500 mV (press 500, SHIFT, m,

then ENTER).

Connect another composite signal connector of the PAL signal

source (labeled COMPST on the TSG 121) through a 75 W cable

and a 75 W terminator to the CH2 input. See Figure 1–33.

PAL signal

source

75 W terminators

Oscilloscope

Signal Generator

COMPST

75 W Cable

Output

COMPST

BNC T connector

50 W cable

75 W cable

Figure 1–33: Subsequent 60 Hz Rejection test hookup

CONFIRM that the TRIG’D LED stays lighted and that the

waveform on screen is stable. In other words, be sure the waveform

does not move horizontally or vertically. Also, confirm that the

waveform on the screen has one positive pulse and a number of

negative pulses. See Figure 1–34.

Disconnect all test equipment from the oscilloscope.

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Performance Tests

Figure 1–34: 60 Hz Rejection test result – TDS 684B shown

6. Check Line Count Accuracy.

a. Set up oscilloscope for Line Count Accuracy Test:

Press WAVEFORM OFF.

Press CH1.

Press HORIZONTAL MENU.

Press the main-menu Record Length.

Press the side-menu –more– until you see the appropriate menu.

Press the side-menu 5000 points in 100divs.

Press the main-menu Horiz Scale (/div).

Use the keypad to set the horizontal scale to 200 ns (press 200,

SHIFT, n, then ENTER).

b. Check Line Count Accuracy:

Connect a composite output signal from the rear of the PAL signal

source (labeled COMPST on the TSG 121) to the CH1 input

through a 75 W cable and a 75 W terminator. See Figure 1–35.

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Performance Tests

PAL signal

source

Oscilloscope

Output

75 W cable

75 W terminator

Figure 1–35: Line count accuracy test hookup

Press the main-menu Trigger Position.

Press the side-menu to Set to 50%.

Press the main-menu to Horiz Pos.

Press the side-menu to Set to 50%.

Use the HORIZONTAL POSITION knob to move the falling edge

of the sync pulse to two divisions to the left of center screen. See

Figure 1–36.

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Performance Tests

Figure 1–36: Line count accuracy test setup waveform – TDS 684B shown

Press CURSOR.

Press the main-menu Function.

Press the side-menu V Bars.

Using the General Purpose knob, place the left cursor directly over

the trigger ‘T’ icon.

Press SELECT.

Turn the General Purpose knob to adjust the right cursor for a cursor

delta reading of 6.780us.

Use the HORIZONTAL POSITION knob to position the right

cursor to center screen.

Verify that the cursor is positioned on a positive slope of the burst

signal. See Figure 1–37.

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Performance Tests

Figure 1–37: Line count accuracy correct result waveform

Disconnect all test equipment (TSG 121) from the oscilloscope.

Turn off cursors by pressing CURSOR, then the main-menu

Function button, and, finally, Off from the side menu.

7. Check the Sync Duty Cycle.

a. Set up oscilloscope for Sync Duty Cycle Test:

Press TRIGGER MENU.

Press the Standard pop-up to select FlexFmt. Trigger Type should

already be set to Video.

Press the main-menu Setup.

Press the side-menu Field Rate.

Use the keypad to set the field rate to 60.05 Hz (press 60.05, then

ENTER).

Press the side-menu Lines.

Use the keypad to set the field rate to 793 lines (press 793, then

ENTER).

Press the side-menu Fields.

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Performance Tests

Use the keypad to set the number of fields to 1 (press 1, then

ENTER).

Press the side-menu Sync Width.

Use the keypad to set the width to 400 ns (press 400, SHIFT, n,

then ENTER).

Press the side-menu –more– 1 of 2. Then press V1 Start Time.

Use the keypad to set V1 start time to 10.10 ms (press 10.10, SHIFT,

m, then ENTER).

Press the side-menu V1 Stop Time.

Use the keypad to set V1 stop time to 10.50 ms (press 10.50, SHIFT,

m, then ENTER).

Press the main-menu Type pop-up to select Edge.

Press HORIZONTAL MENU.

Press the main-menu Record Length.

Select the side-menu 1000 points in 20div. If needed, first press the

side-menu –more– until you see the appropriate side-menu item.

Turn the HORIZONTAL POSITION knob to position the trigger

‘T’ two divisions to the left of the center screen.

Press MEASURE.

If needed, press the main-menu Select Measrmnt.

Press the side-menu Negative Width.

Press the side-menu Period.

b. Set up the pulse generator for Sync Duty Cycle Test:

Set PULSE DURATION to 50 ns.

Set PERIOD to 10 ms.

Set OUTPUT (VOLTS) to –1 for LOW LEVEL and +1 for HIGH

LEVEL.

Depress the COMPLEMENT button.

Be sure BACK TERM is depressed (in).

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Performance Tests

c. Check Sync Duty Cycle:

Connect the pulse generator through a 50 W cable and a 50 W

terminator to the oscilloscope CH1 input. See Figure 1–38.

Pulse

Generator

Oscilloscope

Output

50 W cable

50 W terminator

Figure 1–38: Setup for sync duty cycle test

Turn the pulse generator OUTPUT (VOLTS) control until the signal

on the oscilloscope shows a one division negative-going pulse. See

Figure 1–39.

NOTE. You may need to adjust the trigger level control to obtain a stable trigger.

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Figure 1–39: Sync duty cycle test: one-div neg pulse waveform

Turn the pulse generator PULSE DURATION variable control to

adjust the negative pulse so the oscilloscope’s CH1 – Width

measurement displays 400ns +/–10 ns.

Turn the HORIZONTAL SCALE knob to set the oscilloscope time

base to 5ms/div.

Turn the pulse generator PERIOD variable control to adjust the

period until the oscilloscope CH1 Period measurement reads

21.000ms –25/+50 ns. See Figure 1–40. Read note shown below.

NOTE. The pulse duration and period adjustments are critical in making this

measurement. If the pulse duration and/or the duty cycle are not stable, the

FLEXFMT function may not function. You must take care when making these

adjustments.

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Figure 1–40: Sync duty cycle test: critically adjusted pulse

Press TRIGGER MENU.

Press the main-menu Type pop-up until you select Video.

If the TRIG’D LED is not lighted, check that the CH1 – Width and

CH1 Period measurements are adjusted correctly. See note above.

CONFIRM that the setup is correct and the oscilloscope will trigger.

CONFIRM that the TRIG’D LED is lighted and the waveform is

stable.

Disconnect the signal source from CH1, wait a few seconds, then

reconnect the signal.

CONFIRM that the TRIG’D LED is lighted and the waveform is

stable.

Press Sync Polarity.

Press Pos Sync.

Push the pulse generator COMPLEMENT button out.

CONFIRM that the TRIG’D LED is lighted and the waveform is

stable.

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Performance Tests

Disconnect the signal source from CH1, wait a few seconds, then

reconnect the signal.

CONFIRM that the TRIG’D LED is lighted and the waveform is

stable.

Disconnect all test equipment from the oscilloscope.

Press save/recall SETUP, the main-menu button Recall Factory

Setup, and the side-menu OK Confirm Factory Init.

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Performance Tests

Sine Wave Generator Leveling Procedure

Some procedures in this manual require a sine wave generator to produce the

necessary test signals. If you do not have a leveled sine wave generator, use one

of the following procedures to level the output amplitude of your sine

wave generator.

Equipment

required

Sine wave generator (Item 14)

Level meter and power sensor (Item 15)

Power splitter (Item 16)

Two male N to female BNC adapters (Item 17)

One precision coaxial cable (Item 5)

See page 1–15

Prerequisites

Sine Wave

Generator

Oscilloscope

Level Meter

Input

Power splitter

Output

Attenuators

(if necessary)

Power sensor

Figure 1–41: Sine wave generator leveling equipment setup

1. Install the test hookup: Connect the equipment as shown in Figure 1–41.

2. Set the Generator:

Set the sine wave generator to a reference frequency of 10 MHz.

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Adjust the sine wave generator amplitude to the required number of

divisions as measured by the oscilloscope.

3. Record the reference level: Note the reading on the level meter.

4. Set the generator to the new frequency and reference level:

Change the sine wave generator to the desired new frequency.

Input the correction factor and/or the new frequency into the level

meter.

Adjust the sine wave generator amplitude until the level meter again

reads the value noted in step 3. The signal amplitude is now

correctly set for the new frequency.

Equipment

required

Sine wave generator (Item 14)

Level meter and power sensor (Item 15)

Two male N to female BNC adapters (Item 17)

Two precision coaxial cables (Item 5)

Prerequisites

See page 1–15

1. Install the test hookup: Connect the equipment as shown in Figure 1–42

(start with the sine wave generator connected to the oscilloscope).

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Oscilloscope

Sine Wave

Generator

Output

Level Meter

Connect the sine wave

generator to the

oscilloscope and the

power sensor as

directed in the text.

Power sensor

Input

Figure 1–42: Equipment setup for maximum amplitude

2. Set the Generator:

Set the sine wave generator to a reference frequency of 10 MHz.

Adjust the sine wave generator amplitude to the required number of

divisions as measured by the oscilloscope.

3. Record the reference level:

Disconnect the sine wave generator from the oscilloscope.

Connect the sine wave generator to the power sensor.

Note the level meter reading.

4. Set the generator to the new frequency and reference level:

Change the sine wave generator to the desired new frequency.

Input the correction factor and/or the new frequency into the level meter.

Adjust the sine wave generator amplitude until the level meter again

reads the value noted in step 3. The signal amplitude is now correctly set

for the new frequency.

Disconnect the sine wave generator from the power sensor.

Connect the sine wave generator to the oscilloscope.

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Performance Tests

Optical Filters Checks (TDS 500D/TDS 700D Only)

The procedure that follows verifies that the frequency response of the combined

P670xB and TDS500D/700D oscilloscope system is a Fourth Order Bessel

Thompson Filter which is within limits.

Filter Availability

Nominal Filters are available with Option 2C. Reference Receiver Filters are

available with Options 3C and 4C. Options 3C and 4C are not available without

2C, and 3C and 4C are not available on the TDS 794D.

You can verify Option 2C is enabled on the TDS 794D by pressing MEASURE,

then selecting Masks from the Measure pop-up menu. Table 1–8 lists the

available vertical scale factors for each option. Tables 1–9, 1–10, and 1–11 list

the available filters and their specifications.

Table 1–8: Available Filters

Nominal Filters

(Option 2C)

Reference Receivers Filters

(Options 3C, 4C)

1 mW per division

2 mW per division

5 mW per division

10 mW per division

20 mW per division

50 mW per division

100 mW per division

200 mW per division

500 mW per division

1 mW per division

10 mW per division

20 mW per division

50 mW per division

Table 1–9: Reference Receiver Filter Options:

Option 4C – SONET (P6703B 1300nm)

Option 3C – Fibre Channel (P6701B 850nm)

52Mbit OC1

FC133Mbit

FC266Mbit

FC531Mbit

155Mbit OC3

622Mbit OC12

FC1063 (TDS 784D Only)

622Mbit OC12

FC1063 (TDS 784D Only)

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Table 1–10: Option 3C and 4C Specifications (not available on TDS 794D)

Name

Description

Calibration Range, Reference Receiver

10 mW per division

20 mW per division

50 mW per division

23_ C, "5_ C

Temperature Range, Warranted Filter

Calibration Range, Controlled

Up to 2X the data rate for all filters except

FC1063 filter

Up to 1.5X the data rate for FC1063 filter

Table 1–11: Available receivers

Option 4C

Option 3C

OC1

OC3

OC12

FC1063

FC133

FC266

FC531

FC1063

OC3

OC12

TDS 520D

TDS 540D

TDS 580D

TDS 724D

TDS 754D

TDS 784D

Requires Tektronix P6703B, 1300 nm Optical to Electrical Converter.

Requires Tektronix P6701B, 850 nm Optical to Electrical Converter.

Reference receivers are warranted to 2.0 times the bit rate except for FC1063 which is warranted to 1.5 times the bit rate.

OC1 is type tested

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Performance Tests

Reference Receiver

Verification

Equipment

required

OIG501 (use with P6701B) (Item 24)

OIG502 (use with P6703B) (Item 25)

Optical Attenuator OA5022 (Item 26)

Fiber Optic Cable (Item 27)

Optical-to-Electrical Converter (item 28)

Prerequisites

See page 1–15. Also, the probe and the oscilloscope channel it is

attached to must have been calibrated as a reference receiver.

1. Install the test hookup and preset the instrument controls:

Optical Impulse Optical

Oscilloscope

Generator

Attenuator

Output

Input

Output

Fiber optic cable

Optical to electrical converter

Figure 1–43: Reference-receiver performance-verification set up

a. Initialize the oscilloscope:

Press SAVE/RECALL SETUP.

Press the main-menu button Recall Factory Setup.

Press the side-menu button OK Confirm Factory Init.

b. Connect the probe, oscilloscope, optical impulse generator (OIG), and

the optical attenuator:

Connect the optical probe to CH 1 of the oscilloscope under test (see

Figure 1–43).

See Table 1–11. If using a P6701B probe, connect the OIG501

(Item 24) OPTICAL OUTPUT to the optical attenuator (Item 26)

OPTICAL INPUT using a fiber-optic cable (Item 27). If using a

P6703B probe, connect the OIG502 (Item 25) OPTICAL OUTPUT

to the optical attenuator (Item 26) OPTICAL INPUT using a

fiber-optic cable (Item 27).

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Performance Tests

Connect the optical probe on CH 1 of the oscilloscope to the

OPTICAL OUTPUT of the optical attenuator using the fiber-optic

cable of the probe. Set an optical impulse level that does not clip the

vertical channel of the oscilloscope.

c. Set up the OIG to run with LOW impulse energy.

Keep the impulse below 100 mW peak level because high-energy

impulses into the P670x probe will cause major changes in the

frequency response of the probe.

Set the OIG for 1 MHz internal trigger.

Set the OIG for the wavelength shown in Table 1–11 that is required

for the standard and option you are verifying.

d. Enable the laser.

e. Set the VERTICAL SCALE of the oscilloscope to either 10 mW, 20 mW

or 50 mW/division.

NOTE. These are the only scale settings for which the reference receivers have

calibrated filters.

f. Set the trigger type to edge:

Press TRIGGER MENU; then select Edge from the Type pop-up

menu.

Press SET LEVEL TO 50%.

g. Set the HORIZONTAL SCALE to 500 ps.

h. Set the Optical Attenuator for several divisions of display on the

oscilloscope.

i. Set the horizontal controls:

If Fit To Screen is not OFF, press HORIZONTAL MENU; then

press Record Length. Then press Fit to Screen to toggle it to the

OFF setting. Fit to Screen needs to be OFF so that the FFT

waveform horizontal scale can be adjusted to obtain the desired

display of the frequency response.

To obtain a 10000 point FFT in step 3, press HORIZONTAL

MENU; then press Record Length. Then repeatedly press the

side-menu button –more– until 15000 appears in the side menu.

Press the side-menu button 15000.

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Performance Tests

Press HORIZONTAL MENU; then press the main-menu button

Trigger Position. Set the Trigger Position to 20% using the general

purpose knob or keypad.

NOTE. Press SHIFT to change the horizontal position speed. The position moves

faster when SHIFT is lighted.

Adjust the HORIZONTAL POSITION to move the 20% trigger

point onto the display (see Figure 1–44).

Figure 1–44: Optical impulse of Ch1 input from OA5022 Optical Attenuator

(OIG501 / OIG502 fed into optical attenuator in Step 1)

j. Select linear interpolation:

If SHIFT is lighted, press SHIFT.

Press DISPLAY; then press the main-menu button Filter.

Press the side-menu button Linear Interpolation.

2. Select the desired Mask standard and turn it on:

Press MEASURE; then select Masks from the Measure pop-up menu.

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Performance Tests

NOTE. <xxx> is the standard that you are verifying (such as OC1, OC3, OC12,

FC1063; see Table 1–12).

From the Mask Type pop-up menu, select the mask type (<xxx>) of your

reference receiver.

Press the Standard Mask main menu; then select your reference

receiver mask (<xxx>) from the side menu.

NOTE. For the Bessel Thompson (BT) filter to be active, the VERTICAL MENU

deskew must be set to zero on all four channels. Also, the ACQUIRE MENU

Acquisition Mode must be Sample. If you did the Factory Setup specified in

Step 1a, you selected these modes.

If checking a reference receiver, verify that RR is displayed to the right

of the vertical scale factor (see Figure 1–45).

Press TRIGGER MENU; then select Edge from the Type pop-up

menu.

3. Turn on an FFT of the optical impulse [the Impulse Response (or Frequency

Response) of the P670xB and oscilloscope system] (Refer to Figure 1–46):

a. Press the front panel MORE button; then press the main-menu button

Math2. This turns on a math waveform.

b. If the math waveform is not set to FFT, create an FFT waveform:

Press Change Math waveform definition; then press the main-

menu button FFT.

Press the side-menu button Set FFT source to Ch1.

NOTE. Verify the FFT window is set to Rectangular. Also verify the FFT Vert

Scale is set to dBV RMS. If you did the Factory Setup in Step 1a, you selected

these modes.

Press the side-menu button OK Create Math Waveform.

Press the side menu button Average, then set the number of averages

to 16 using the general purpose knob or keypad.

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Performance Tests

4. Move the beginning of the FFT data record onto the screen:

NOTE. Press SHIFT to change the horizontal position speed. The position moves

faster when SHIFT is lighted.

Adjust the HORIZONTAL POSITION control to move the beginning

of the FFT data record onto the display.

NOTE. Expanding the horizontal scale of the FFT waveform gives greater

resolution when making cursor measurements. Expand the FFT to display DC to

the highest frequency listed in Table 1–12 for the standard being verified.

Adjust the HORIZONTAL SCALE and VERTICAL SCALE to view

the frequency response of the BT filter. The large spike around DC is

due to DC offset in the signal and should be ignored.

5. Observe the desired response characteristics using the vertical paired

cursors (see figures 1–45 and 1–46):

a. Press CURSOR.

b. Press the main-menu button Function; then press the side-menu button

Paired.

c. Press CLEAR MENU.

NOTE. Pressing SHIFT will change cursor speed. Use the select key to alternate

between cursors.

d. Position one cursor at the beginning of the FFT record.

e. Position the other cursor at the bit rate (the frequency closest to the bit

rate) of the mask that is turned on (see Table 1–12 and Figure 1–45).

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Figure 1–45: Optical impulse response for OC–12 SONET Reference Receiver

NOTE. In Figure 1–45, the left cursor is at the DC frequency. The right cursor is

at the OC-12 data rate of 622 MHz "4 MHz. Also, note that the reference

receiver, RR, designation is beside the 20 mW vertical scale factor.

f. Next, move the cursor currently positioned at the beginning of the record

until the cursor is just right of the DC spike in the response (see

Figure 1–46). The unsigned D dB readout should be at or between the

upper and lower limits shown in Table 1–12 (note that the entries in the

table are signed numbers, but the D dB readout is not) for the mask that

is turned on.

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Figure 1–46: Optical impulse response for OC–12 SONET Reference Receiver

NOTE. In Figure 1–46 the left cursor has been moved to the zero dB level. The

right cursor remains at the OC–12 data rate of 622 MHz "4 MHz (the delta

frequency is 584 MHz because the right cursor is no longer referenced to DC).

The delta attenuation from the zero dB level to the 622 MHz Cursor is 5.6 dB.

6. Repeat steps 5d through 5f, starting on page 1–97, moving the second cursor

to twice the bit rate (1.5 times the bit rate for the FC1063 standard).

7. For an exhaustive test of the reference receiver, repeat steps 5d through 5f for

each frequency shown in Table 1–12 for the standard.

8. If verifying additional standards, repeat this procedure for each standard.

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Table 1–12: Bessel Thompson frequency response and reference receiver limits

Standard Frequency (MHz) Lower Limit (dB)

OC–12 SONET or STM–4 SDH, Data Rate: 622.08 Mb/s

Nominal (dB)

Upper Limit (dB)

Measured (delta dB)

0.0

–0.3

0.0

0.3

93.31

186.6

279.9

373.2

466.7

5.60.0

622.08

653.2

746.5

839.8

933.1

1244.2

–0.41

–0.75

–1.32

–2.16

–3.31

–5.15

–6.58

–7.35

–9.86

–12.59

–15.41

–24.58

–0.11

–0.45

–1.02

–1.86

–3.00

–4.51

–5.71

–6.37

–8.54

–10.93

–13.41

–21.44

0.19

–0.15

–0.72

–1.56

–2.71

–3.87

–4.84

–5.39

–7.22

–9.27

–11.41

–18.31

OC–3 SONET or STM–1 SDH, Data Rate: 155.52 Mb/s

0.0

–0.3

–0.0

0.3

23.327

46.65

69.975

93.3

–0.41

–0.75

–1.32

–2.16

–3.31

–5.15

–6.58

–7.35

–9.86

–12.59

–15.41

–24.58

–0.11

–0.45

–1.02

–1.86

–3.00

–4.51

–5.71

–6.37

–8.54

–10.93

–13.41

–21.44

0.19

–0.15

–0.72

–1.56

–2.71

–3.87

–4.84

–5.39

–7.22

–9.27

–11.41

–18.31

116.88

139.97

155.52

163.3

209.95

233.27

311.04

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Table 1–12: Bessel Thompson frequency response and reference receiver limits (cont.)

Standard

Frequency (MHz) Lower Limit (dB)

Nominal (dB)

Upper Limit (dB)

Measured (delta dB)

FC133 Fibre Channel, Data Rate: 132.8125 Mb/s

0.00

–0.5

0.0

0.5

19.922

38.440

59.765

79.690

99.610

119.53

132.81

139.45

159.37

179.29

199.22

265.62

–0.6

–0.1

–0.4

–1.0

–1.9

–3.0

–4.5

–5.7

–6.4

–8.5

–10.9

–13.4

–21.5

0.4

–0.9

–0.1

–0.5

–1.4

–2.5

–3.5

–4.37

–4.9

–6.5

–8.4

–10.4

–16.5

–1.5

–2.4

–3.5

–5.5

–7.03

–7.9

–10.5

–13.4

–16.4

–26.17

FC266 Fibre Channel, Data Rate: 265.625 Mb/s

0.0

–0.5

0.0

0.5

39.844

79.688

119.53

159.38

199.22

239.06

265.62

278.91

318.75

358.59

398.44

531.25

–0.6

–0.1

–0.4

–1.0

–1.9

–3.0

–4.5

–5.7

–6.4

–8.5

–10.9

–13.4

–21.5

0.4

–0.9

–0.1

–0.5

–1.4

–2.5

–3.5

–4.37

–4.9

–6.5

–8.4

–10.4

–16.5

–1.5

–2.4

–3.5

–5.5

–7.03

–7.9

–10.5

–13.4

–16.4

–26.17

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Table 1–12: Bessel Thompson frequency response and reference receiver limits (cont.)

Standard

Frequency (MHz) Lower Limit (dB)

Nominal (dB)

Upper Limit (dB)

Measured (delta dB)

FC531 Fibre Channel, Data Rate: 531.25 Mb/s

0.0

–0.5

–0.0

–0.1

–0.4

–1.0

–1.9

–3.0

–4.5

–5.7

–6.4

–8.5

–10.9

–13.4

–21.5

0.5

79.688

159.38

239.06

318.76

398.44

478.12

531.24

557.82

637.50

717.18

796.88

1062.5

–0.6

0.4

–0.9

–0.1

–0.5

–1.4

–2.5

–3.5

–4.37

–4.9

–6.5

–8.4

–10.4

–16.3

–1.5

–2.4

–3.5

–5.5

–7.03

–7.9

–10.5

–13.4

–16.4

–26.17

FC1063 Fibre Channel (Controlled to 1.5X Data Rate), Data Rate: 1062.5 Mb/s

0.0

–0.5

–0.6

–0.9

–1.5

–2.4

–3.5

–5.5

–7.03

–7.9

–10.5

–13.4

–16.4

0.0

0.5

159.38

318.75

478.12

637.50

796.87

956.25

1062.5

1115.63

1275.0

1434.37

1593.75

–0.1

–0.4

–1.0

–1.9

–3.0

–4.5

–5.7

–6.4

–8.5

–10.9

–13.4

0.4

0.1

–0.5

–1.4

–2.5

–3.5

–4.37

–4.9

–6.5

–8.4

–10.4

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This section begins with a general description of the traits of the TDS 500D,

TDS 600B and TDS 700D oscilloscopes. Three sections follow, one for each of

three classes of traits: nominal traits, warranted characteristics, and typical

characteristics.

Product Description

The TDS 500D, TDS 600B and TDS 700D oscilloscopes are portable, four-chan-

nel instruments suitable for use in a variety of test and measurement applications

and systems. Table 2–1 lists key features.

Table 2–1: Key features of the TDS 500D, 600B and 700D oscilloscopes

Feature

TDS 600B

TDS 500D & TDS 700D

Digitizing rate,

maximum

TDS 684B: 5 GS/s on ea. of 4 ch

TDS 680B: 5 GS/s on ea. of 2 ch

TDS 644B: 2.5 GS/s on ea. of 4 ch TDS 540D, 754D: 2 GS/s

TDS 620B: 2.5 GS/s on ea. of 2 ch TDS 520D, 724D: 1 GS/s

TDS 580D, TDS 784D,

TDS 794D: 4 GS/s

Analog bandwidth

No. of Channels

TDS 794D: 2 GHz

TDS 580D, TDS 680B, 684B, and 784D: 1 GHz

TDS 520D, 540D, 620B, 644B, 724D and 754D: 500 MHz

TDS 644B & 684B: 4

TDS 620B & 680B: 2 + 2

TDS 540D, 580D,

TDS 754D, 784D & 794D: 4

TDS 520D & 724D: 2 + 2

Record lengths,

maximum

15,000 samples

50,000 samples

(500,000 with option 1M)

(8,000,000 with option 2M)

Acquisition modes

Trigger modes

Sample, envelope, peak detect

and average

Sample, envelope, average,

high-resolution, and

peak-detect

Modes include:

Edge, logic, and pulse.

Video trigger, with option 05, modes include:

NTSC, SECAM, PAL, HDTV, and FlexFormat.

(Not available on TDS 794D)

Communications Trigger with option 2C (available on

TDS 500D/700D), modes include: AMI, CMI, and NRZ

Display

TDS 520D, 540D, 580D, 620B, 680B: Monochrome

TDS 644B, 684B, 724D, 754D, 784D, 794D: Color

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Table 2–1: Key features of the TDS 500D, 600B and 700D oscilloscopes (cont.)

Feature

TDS 600B

TDS 500D & TDS 700D

Storage

Floppy disk drive:

1.44 Mbyte, 3.5 inch, DOS 3.3-or-later floppy disk drive

Internal hard disk drive

(optional on the TDS 500D and 700D)

Iomega Zip drive compatible

NVRAM storage for saving waveforms, hardcopies, and setups

I/O

Full GPIB programmability.

Hardcopy output using GPIB, RS-232, or Centronics ports

Two plus Two channel operation allows up to two of the four channels to be

displayed simultaneously. Channels not displayed can be used to couple a

triggering signal to the oscilloscope.

User Interface

Use a combination of front-panel buttons, knobs, and on-screen menus to control

the many functions of the oscilloscope. The front-panel controls are grouped

according to function: vertical, horizontal, trigger, and special. Set a function you

adjust often, such as vertical positioning or the time base setting, directly by its

own front-panel knob. Set a function you change less often, such as vertical

coupling or horizontal mode, indirectly using a selected menu.

Menus

Pressing one (sometimes two) front-panel button(s), such as vertical menu,

displays a main menu of related functions, such as coupling and bandwidth, at

the bottom of the screen. Pressing a main-menu button, such as coupling,

displays a side menu of settings for that function, such as AC, DC, or GND

(ground) coupling, at the right side of the screen. Pressing a side-menu button

selects a setting such as DC.

Indicators

On-screen readouts help you keep track of the settings for various functions,

such as vertical and horizontal scale and trigger level. Some readouts use the

cursors or the automatic parameter extraction feature (called measure) to display

the results of measurements made or the status of the instrument.

General Purpose Knob

Assign the general purpose knob to adjust a selected parameter function. More

quickly change parameters by toggling the SHIFT button. Use the same method

as for selecting a function, except the final side-menu selection assigns the

general purpose knob to adjust some function, such as the position of measure-

ment cursors on screen, or the setting for a channel fine gain.

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GUI

The user interface also makes use of a GUI, or Graphical User Interface, to make

setting functions and interpreting the display more intuitive. Some menus and

status are displayed using iconic representations of function settings, such as

those shown here for full, 250 MHz and 20 MHz bandwidth. Such icons allow

you to more readily determine status or the available settings.

Signal Acquisition System

The signal acquisition system provides up to four, full-featured vertical channels

with calibrated vertical scale factors from 1 mV to 10 V per division, depending

on TDS model. All channels can be acquired simultaneously.

Each of the full-featured channels can be displayed, vertically positioned, and

offset, and their vertical coupling specified. Some models can have their

bandwidth limited (250 MHz or 20 MHz). Fine gain can also be adjusted.

Besides these channels, up to three math waveforms and four reference wave-

forms are available for display. (A math waveform results when you specify dual

waveform operations, such as add, on any two channels. A reference waveform

results when you save a waveform in a reference memory).

Horizontal System

There are three horizontal display modes: main only, main intensified, and

delayed only. You can select among various horizontal record length settings.

A feature called “Fit to Screen” allows you to view entire waveform records

within the 10 division screen area. Waveforms are compressed to fit on the

screen. See Table 2–2.

Both the delayed only display and the intensified zone on the main intensified

display may be delayed by time with respect to the main trigger. Both can be set

to display immediately after the delay (delayed runs after main mode). The

delayed display can also be set to display at the first valid trigger after the delay

(delayed-triggerable modes).

The delayed display (or the intensified zone) may also be delayed by a selected

number of events. In this case, the events source is the delayed-trigger source.

The delayed trigger can also be set to occur after a number of events plus an

amount of time.

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Table 2–2: Record length and divisions per record vs. TDS model

Divisions per record

Standard Models

Record length

500

FTS Off

10 divs

FTS On

All TDS 500D, TDS600B & TDS 700D

10 divs

All channels

1,000

20 divs

2,500

50 divs

5,000

100 divs

300 divs

1,000 divs

15,000

50,000

TDS 500D & TDS 700D,

All channels

Divisions per record

Models with Option 1M

Record length

FTS Off

FTS On

TDS 500D & TDS 700D,

All channels

75,000

1,500 divs

2,000 divs

2,600 divs

5,000 divs

10 divs

TDS 500D & TDS 700D,

All channels

100,000

130,000

250,000

TDS 500D & TDS 700D,

All channels

TDS 520D

One channel only

TDS 540D, TDS 580D, & All TDS 700D

One or two channels

TDS 540D, TDS 580D, & All TDS 700D

One channel only

500,000

10,000 divs

10 divs

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Table 2–2: Record length and divisions per record vs. TDS model (cont.)

Divisions per record

Models with Option 2M

Record length

FTS Off

FTS On

TDS 520D & TDS 724D

One or two channels

2,000,000

40,000 divs

80,000 divs

160,000 divs

10 divs

TDS 540D, TDS 580D, TDS 754D,

TDS 784D & TDS 794D

Three or four channels

TDS 520D & TDS 724D

One channel only

4,000,000

8,000,000

TDS 540D, TDS 580D, TDS 754D,

TDS 784D & TDS 794D

Two channels

TDS 540D, TDS 754D,

TDS 784D & TDS 794D

One channel only

Fit to Screen setting

Fit to Screen off preserves 50 samples/division in a 1–2–5 sec/division sequence.

Fit to Screen on lets the samples/division and the sec/division sequence vary.

All channels means all that may be displayed at one time: four channels for some

models, two for others. See Table 2–1 and its footnote.

Trigger System

The triggering system supports a varied set of features for triggering the

signal-acquisition system. Trigger signals recognized include:

Edge (main- and delayed-trigger systems): This familiar type of triggering is

fully configurable for source, slope, coupling, mode (auto or normal), and

holdoff.

Logic (main-trigger system): This type of triggering can be based on pattern

(asynchronous) or state (synchronous). In either case, logic triggering is

configurable for sources, for Boolean operators to apply to those sources, for

logic pattern or state on which to trigger, for mode (auto or normal), and for

holdoff. Time qualification may be selected in pattern mode. Another class

of logic trigger, setup/hold, triggers when data in one trigger source changes

state within the setup and hold times that you specify relative to a clock in

another trigger source.

Pulse (main-trigger system): Pulse triggering is configurable for triggering

on runt or glitch pulses, or on pulse widths or periods inside or outside limits

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that you specify. It can also trigger on a pulse edge that has a slew rate faster

or slower than the rate you specify. The timeout trigger will act when events

do not occur in a defined time period. The pulse trigger is also configurable

for source, polarity, mode, and holdoff.

Video (with option 05: Video Trigger): Video triggering is compatible with

standard NTSC, PAL, SECAM, and HDTV formats. An additional feature

called FlexFormat^TM(flexible format) allows the user to define the video

format on which to trigger.

Comm (with option 2C): is provided for triggering on AMI, CMI, or NRZ

communications signals.

You can choose where the trigger point is located within the acquired waveform

record by selecting the amount of pretrigger data displayed. Presets of 10%,

50%, and 90% of pretrigger data can be selected in the horizontal menu, or the

general purpose knob can be assigned to set pretrigger data to any value within

the 0% to 100% limits.

Acquisition Control

You can specify a mode and manner to acquire and process signals that matches

your measurement requirements.

Select the mode for interpolation (linear or sin (x)/x). This can increase the

apparent sample rate on the waveform when the maximum real-time rate is

exceeded.

Use sample, envelope, average and peak detect modes to acquire signals.

With the TDS 500D/700D, also use high-resolution mode.

Set the acquisition to stop after a single acquisition (or sequence of

acquisitions if acquiring in average or envelope modes) or after a limit

condition has been met.

Select channel sources for compliance with limit tests. You can direct the

TDS to signal you or generate hard copy output either to a printer or to a

floppy-disk file based on the results. Also, you can create templates for use

in limit tests.

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On-Board User Assistance

Help and autoset can assist you in setting up the oscilloscope to make your

measurements.

Help

Help displays operational information about any front-panel control. When help

mode is in effect, manipulating any front-panel control causes the oscilloscope to

display information about that control. When help is first invoked, an introduc-

tion to help is displayed on screen.

Autoset

Autoset automatically sets up the oscilloscope for a viewable display based on

the input signal.

Measurement Assistance

Once you have set up to make your measurements, the cursor and measure

features can help you quickly make those measurements.

Cursor

Three types of cursors are provided for making parametric measurements on the

displayed waveforms. Horizontal bar cursors (H Bar) measure vertical parame-

ters (typically volts). Vertical bar cursors (V Bar) measure horizontal parameters

(typically time or frequency). Paired cursors measure both amplitude and time

simultaneously. These are delta measurements; that is, measurements based on

the difference between two cursors.

Both H Bar and V Bar cursors can also be used to make absolute measurements.

For the H Bars, either cursor can be selected to read out its voltage with respect

to any channel’s ground reference level. For the V Bars, the cursors measure time

with respect to the trigger point (event) of the acquisition. The cursors can also

control the portion of the waveform on which automatic measurements are made.

For time measurements, units can be either seconds or hertz (for 1/time).

With the video trigger option installed (Option 05), you can measure the video

line number using the vertical cursors. You can measure IRE amplitude (NTSC)

using the horizontal cursors with or without the video trigger option installed.

Measure

Measure can automatically extract parameters from the signal input to the

oscilloscope. Any four out of the 25 parameters available can be displayed to the

screen. The waveform parameters are measured continuously with the results

updated on-screen as the oscilloscope continues to acquire waveforms.

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Digital Signal Processing

(DSP)

An important component of the multiprocessor architecture of this oscilloscope

is Tektronix’ proprietary digital signal processor, the DSP. This dedicated

processor supports advanced analysis of your waveforms when doing such

compute-intensive tasks as interpolation, waveform math, and signal averaging.

It also teams with a custom display system to deliver specialized display modes

(See Display, later in this description).

Storage

Acquired waveforms may be saved in any of four nonvolatile REF (reference)

memories or on a 3.5 inch, DOS 3.3-or-later compatible disk. Any or all of the

saved waveforms may be displayed for comparison with the waveforms being

currently acquired.

The TDS 500D/700D instrument with option 2M can save waveforms to an

internal hard disk drive. Any or all of the saved waveforms may be displayed

for comparison with the waveforms being currently acquired.

The source and destination of waveforms to be saved may be chosen. You can

save any of the four channels to any REF memory or move a stored reference

from one REF memory to another. Reference waveforms may also be written

into a REF memory location via the GPIB interface.

I/O

The oscilloscope is fully controllable and capable of sending and receiving

waveforms over the GPIB interface (IEEE Std 488.1–1987/IEEE Std 488.2–1987

standard). This feature makes the instrument ideal for making automated

measurements in a production or research and development environment that

calls for repetitive data taking. Self-compensation and self-diagnostic features

built into the oscilloscope to aid in fault detection and servicing are also

accessible using commands sent from a GPIB controller.

The oscilloscope can also output copies of its display using the hardcopy feature.

This feature allows you to output waveforms and other on-screen information to

a variety of graphic printers and plotters from the TDS front panel, providing

hard copies without requiring you to put the TDS into a system-controller

environment.

You can make hardcopies in a variety of popular output formats, such as PCX,

TIFF, BMP, RLE, EPS, Interleaf, and EPS mono or color. You can also save

hardcopies in a disk file in any of the formats listed in the I/O section.

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The hardcopies obtained are based on what is displayed on-screen at the time

hardcopy is invoked. The hardcopies can be stamped with date and time and

spooled to a queue for printing at a later time. You can output screen information

via GPIB, RS-232-C, or Centronics interfaces.

Display

The offer flexible display options. You can customize the following attributes of

your display:

Color (TDS 644B, TDS 684B, and TDS 700D): Waveforms, readouts,

graticule, and variable persistence with color coding

Intensity: waveforms, readouts, and graticule

Style of waveform display(s): vectors or dots, intensified or nonintensified

samples, infinite persistence, and variable persistence

Interpolation method: Sin(x)/x or Linear

Display format: xy or yt with various graticule selections including NTSC

and PAL to be used with video trigger (option 05)

Zoom

This oscilloscope also provides an easy way to focus in on those waveform

features you want to examine up close. By invoking zoom, you can magnify the

waveform using the vertical and horizontal controls to expand (or contract) and

position it for viewing.

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Nominal Traits

This section contains a collection of tables that list the various nominal traits

that describe the TDS 500D, TDS 600B, and TDS 700D oscilloscopes. Electrical

and mechanical traits are included.

Nominal traits are described using simple statements of fact such as “Four, all

identical” for the trait “Input Channels, Number of,” rather than in terms of

limits that are performance requirements.

Table 2–3: Nominal traits — Signal acquisition system

Name

Description

Bandwidth Selections

Samplers, Number of

20 MHz, 250 MHz, and FULL (No BW limit on TDS 794D)

TDS 540D, 580D, 644B, 684B, 754D, 784D, and 794D: Four, simultaneous

TDS 520D, 620B, 680B, and 724D: Two, simultaneous

Digitized Bits, Number of

Input Channels, Number of

Input Coupling

8 bits

Four

DC, AC, or GND (TDS 794D – DC or GND only)

1 MW or 50 W (TDS 794D – 50 W only)

Input Impedance Selections

Ranges, Offset

Volts/Div setting

Offset range

(All except TDS 794D)

1 mV/div – 100 mV/div

±1 V

101 mV/div – 1 V/div

±10 V

1.01 V/div – 10 V/div

10 mV/div – 50 mV/div

±100 V

Ranges, Offset (TDS 794D only)

±0.50 V

50.5 mV/div – 99.5 mV/div

100 mV/div – 500 mV/div

±0.25 V

±5 V

500 mV/div – 1 V/div

±2.5 V

Range, Position

±5 divisions

Range, 1 MW Sensitivity

1 mV/div to 10 V/div

Range, 50 W Sensitivity

1 mV/div to 1 V/div (10 mV/div – 1V/div on TDS 794D)

Displayed vertically with 25 digitization levels (DLs) per division and 10.24 divisions dynamic range with zoom off. A DL

is the smallest voltage level change of the oscilloscope input that can be resolved by the 8-bit A-D Converter. Expressed

as a voltage, a DL is equal to 1/25 of a division times the volts/division setting.

The sensitivity ranges from 1 mV/div to 10 V/div (for 1 MW) or to 1 V/div (for 50 W) in a 1–2–5 sequence of coarse settings

with Fit-to-Screen off. Between coarse settings, the sensitivity can be finely adjusted with a resolution equal to 1% of the

more sensitive coarse setting. For example, between 50 mV/div and 100 mV/div, the volts/division can be set with 0.5 mV

resolution.

1 MW not available on TDS 794D

2–11

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Nominal Traits

Table 2–4: Nominal traits — Time base system

Name

Description

1,3

Range, Sample-Rate

TDS 684B: 5 Samples/sec to 5 GSamples/sec on four channels simultaneously

TDS 680B: 5 Samples/sec to 5 GSamples/sec on two channels simultaneously

TDS 644B: 5 Samples/sec to 2.5 GSamples/sec on four channels simultaneously

TDS 620B: 5 Samples/sec to 2.5 GSamples/sec on two channels simultaneously

TDS 520D, and 724D: 5 Samples/sec to 2 GSamples/sec when acquiring 1 channel,

to 1 GSample/sec when acquiring 2 channels

TDS 540D: 5 Samples/sec to 2 GSamples/sec when acquiring 1 or 2 channels,

to 1 GSample/sec when acquiring 3 or 4 channels

TDS 540D Opt. 1G: 5 Samples/sec to 1 GSample/sec when acquiring 1 to 4 channels

TDS 754D: 5 Samples/sec to 2 GSamples/sec when acquiring 1 or 2 channels,

to 1 GSample/sec when acquiring 3 or 4 channels

TDS 754D Opt 1G: 5 Samples/sec to 1 GSample/sec when acquiring 1 to 4 channels

TDS 580D, 784D, and 794D: 5 Samples/sec to 4 GSamples/sec when acquiring 1

channel, to 2 GSamples/sec when acquiring 2 channels,

or to 1 GSample/sec when acquiring 3 or 4 channels

2,3

Range, Interpolated Waveform Rate

Range, Seconds/Division

TDS 600B: 10 GSamples/sec to 250 GSamples/sec

TDS 520D, 540D, 724D, and 754D: 1 GSample/sec to 100 GSamples/sec

TDS 580D, 784D, and 794D: 2 GSamples/sec to 250 GSamples/sec

TDS 600B: 0.2 ns/div to 10 s/div

TDS 500D, 724D, and 754D: 0.5 ns/div to 10 s/div

TDS 580D, 784D, and 794D: 0.2 ns/div to 10 s/div

2–12

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Nominal Traits

Table 2–4: Nominal traits — Time base system (cont.)

Name

Description

Record Length Selection

TDS 500D & TDS 700D:

500, 1,000, 2,500, 5,000, 15,000 and 50,000 samples

In addition to the record lengths previously listed, the following record lengths are

available with the following options:

TDS 520D & TDS 724D with option 1M:

1-channel:

2-channels:

up to 250,000 samples

up to 130,000 samples

TDS 520D & TDS 724D with option 2M:

1-channel:

2-channels:

up to 4,000,000 samples

up to 2,000,000 samples

TDS 540D, TDS 580D, TDS 754D, TDS 784D & TDS 794D with option 1M:

1-channel:

2-channels:

3 or 4-channels

up to 500,000 samples

up to 250,000 samples

up to 130,000 samples

TDS 540D, TDS 580D, TDS 754D, TDS 784D & TDS 794D with option 2M:

1-channel:

2-channels:

3 or 4-channels

up to 8,000,000 samples

up to 4,000,000 samples

up to 2,000,000 samples

The range of real-time rates, expressed in samples/second, at which a digitizer samples signals at its inputs and stores

the samples in memory to produce a record of time-sequential samples.

The range of waveform rates for interpolated (or equivalent-time on the TDS 700D) waveform records.

The Waveform Rate (WR) is the equivalent sample rate of a waveform record. For a waveform record acquired by

real-time sampling of a single acquisition, the waveform rate is the same as the real-time sample rate; for a waveform

created by interpolation of real-time samples from a single acquisition or, on applicable products, the equivalent-time

sampling of multiple acquisitions, the waveform rate created is faster than the real time sample rate. For all these cases,

the waveform rate is 1/(Waveform Interval) for the waveform record, where the waveform interval (WI) is the time between

the samples in the waveform record.

Table 2–5: Nominal traits — Triggering system

Name

Description

Range, Delayed Trigger Time Delay

Range, Events Delay

16 ns to 250 s

TDS 600B; 2 to 10,000,000

TDS 500D/700D: 1 to 10,000,000

1 ns to 1 s

Range (Time) for Pulse-Glitch,

Pulse-Width, Time-Qualified Runt, Timeout,

or Slew Rate Trigger, Delta Time

2–13

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Nominal Traits

Table 2–5: Nominal traits — Triggering system (cont.)

Name

Description

Feature

Ranges, Setup and Hold for

Min to max

TimeSetup/Hold Violation Trigger

Setup Time

–100 ns to 100 ns

Hold Time

–1 ns to 100 ns

2 ns

Setup + Hold Time

For Setup Time, positive numbers mean a data transition before the clock edge and

negative means a transition after the clock edge.

For Hold Time, positive numbers mean a data transition after the clock edge and negative

means a transition before the clock edge.

Setup + Hold Time is the algebraic sum of the Setup Time and the Hold Time

programmed by the user.

Ranges, Trigger Level or Threshold

Source

Range

Any Channel

±12 divisions from center of screen

Auxiliary

±8 V

Line

±400 V

Video Trigger Modes of Operation

(Option 05 Video Trigger)

Supports the following video standards:

NTSC (525/60) – 2 field mono or 4 field

PAL (625/50) – 2 field mono or SECAM, 8 field

HDTV –

(787.5/60)

(1050/60)

(1125/60)

(1250/60)

FlexFormat (user definable standards)

User can specify: field rate, number of lines, sync pulse width and polarity, line rate,

and vertical interval timing.

2–14

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Nominal Traits

Table 2–5: Nominal traits — Triggering system (cont.)

Name

Description

Communication Trigger Modes of

Operation

Standard Name

Code

Bit Rate

(Option 2C Comm Trigger)

OC1/STM0

OC3/STM1

OC12/STM4

DS0 Sgl

DS0 Dbl

DS0 Data Contra

DS0 Timing

E5 (CEPT)

STM1E

DS1

DS1A

DS1C

DS2

DS3/DS3 Rate

DS4NA

STS-1

STS-3

FC133

NRZ

Masks

AMI

CMI

NRZ

CMI

AMI

CMI

AMI

CMI

NRZ

51.84 Mb/s

155.52 Mb/s

622.08 Mb/s

64 kb/s

2.048 Mb/s

8.44 Mb/s

34.368 Mb/s

139.26 Mb/s

565 Mb/s

155.52 Mb/s

1.544 Mb/s

2.048 Mb/s

3.152 Mb/s

6.312 Mb/s

44.736 Mb/s

139.26 Mb/s

51.84 Mb/s

155.52 Mb/s

132.8 Mb/s

265.6 Mb/s

531.2 Mb/s

1.0625 Mb/s

143.18 Mb/s

270 Mb/s

FC266

FC531

FC1063

FDDI

125 Mb/s

360 Mb/s

10 Mb/s

125 Mb/s

4:2:2 SMPTE 259M-D

10 Base-T

100 Base-T

Gigabit Ethernet

1.25 Gb/s

AMI = Alternate Mark Inversion. CMI = Code Mark Inversion. NRZ = Non-return to Zero.

These Telecom DS0 standards are automatically selected from the Mask Menu. The trigger uses Pulse/Width trigger.

Table 2–6: Nominal traits — Display system

Name

Description

Video Display

7 inch diagonal, with a display area of 5.04 inches horizontally by 3.78 inches vertically

TDS 520D, 540D, 580D, 620B, and 680B: Monochrome display

TDS 644B, 684B, 724D, 754D, 784D, and 794D: Color display

Video Display Resolution

640 pixels horizontally by 480 pixels vertically

2–15

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Nominal Traits

Table 2–6: Nominal traits — Display system (cont.)

Name

Description

Waveform Display Graticule

Waveform Display Levels/Colors

Single Graticule: 401 × 501 pixels, 8 ×10 divisions, where divisions are 1 cm by 1 cm

TDS 520D, 540D, 580D, 620B, and 680B:

Sixteen levels in infinite-persistence or variable persistence display

TDS 644B, 684B, 724D, 754D, 784D, and 794D:

Sixteen colors in infinite-persistence or variable persistence display

Table 2–7: Nominal traits — GPIB interface, output ports, and power fuse

Name

Description

Interface, GPIB

Interface, RS-232

GPIB interface complies with IEEE Std 488-1987

RS-232 interface complies with EIA/TIA 574 (talk only)

Optional on the TDS 520D, 540D, 580D, 620B, and 680B

Interface, Centronics

Centronics interface complies with Centronics interface standard

C332-44 Feb 1977, REV A

Optional on the TDS 520D, 540D, 580D, 620B, and 680B

Interface, Video

VGA video output with levels that comply with EIA RS 343A standard. DB-15 connector

Negative TRUE. High to low transition indicates the trigger occurred.

Logic Polarity for Main- and Delayed-

Trigger Outputs

Fuse Rating

Either of two fuses may be used: a 0.25I × 1.25I (UL 198.6, 3AG): 6 A FAST, 250 V

or a 5 mm × 20 mm (IEC 127): 5 A (T), 250 V.

Each fuse type requires its own fuse cap.

Table 2–8: Nominal traits — Data handling and reliability

Name

Description

Time, Data-Retention,

Nonvolatile Memory

Battery life ≥ 5 years

1, 2

Floppy disk drive

3.5 inch, 720 K or 1.44 Mbyte, DOS 3.3-or-later compatible

175 Mbyte capacity

Internal hard disk drive

(option 2M available on the

TDS 500D and 700D)

External data storage

Iomega Zip drive compatible

The times that reference waveforms, stored setups, and calibration constants are retained.

Data is maintained by small lithium-thionyl-chloride batteries internal to the memory ICs. At the time of manufacture, no

special disposal requirements were in effect for these batteries as the amount of hazardous material contained was below

the regulated threshold. Consult your local waste disposal agency for proper disposal.

2–16

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Nominal Traits

Table 2–9: Nominal traits — Mechanical

Name

Description

Cooling Method

Forced-air circulation with no air filter. Clearance is required. Refer to the TDS 500D,

TDS 600B & TDS 700D User Manual for minimum clearance dimensions.

Construction Material

Weight

Chassis parts constructed of aluminum alloy; front panel constructed of plastic laminate;

circuit boards constructed of glass laminate. Cabinet is aluminum and is clad in Tektronix

Blue vinyl material.

Standard Oscilloscope

14.1 kg (31 lbs), with front cover.

24.0 kg (53 lbs), when packaged for domestic shipment

Rackmount Oscilloscopes

14.1 kg (31 lbs) plus weight of rackmount parts, for the rackmounted Oscilloscopes

(Option 1R).

Rackmount conversion kit

2.3 kg (5 lbs), parts only; 3.6 kg (8 lbs), parts plus package for domestic shipping

Standard Oscilloscope

Overall Dimensions

Height: 193 mm (7.6 in), with the feet installed

Width: 445 mm (17.5 in), with the handle

Depth: 434 mm (17.1 in), with the front cover installed

Rackmount Oscilloscope

Height: 178 mm (7.0 in)

Width: 483 mm (19.0 in)

Depth: 558.8 mm (22.0 in)

2–17

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Nominal Traits

2–18

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Warranted Characteristics

This section lists the various warranted characteristics that describe the

TDS 500D, TDS 600B and TDS 700D oscilloscopes. Electrical and environmen-

tal characteristics are included.

Warranted characteristics are described in terms of quantifiable performance

limits which are warranted.

NOTE. In these tables, those warranted characteristics that are checked in the

procedure Performance Verification appear in boldface type under the column

Name.

As stated above, this section lists only warranted characteristics. A list of typical

characteristics starts on page 2–27.

Performance Conditions

The performance limits in this specification are valid with these conditions:

The oscilloscope must have been calibrated/adjusted at an ambient tempera-

ture between +20_ C and +30_ C.

The oscilloscope must be in an environment with temperature, altitude,

humidity, and vibration within the operating limits described in these

specifications.

The oscilloscope must have had a warm-up period of at least 20 minutes.

The oscilloscope must have had its signal-path-compensation routine last

executed after at least a 20 minute warm-up period at an ambient temperature

within ±5_ C of the current ambient temperature.

2–19

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Warranted Characteristics

Table 2–10: Warranted characteristics — Signal acquisition system

Name

Description

Accuracy, DC Gain

TDS 600B: ±1.5% for all sensitivities from 2 mV/div to 10 V/div

± 2.0% at 1 mV/div sensitivity

TDS 500D, 700D: ±1% for all sensitivities from 1 mV/div to 10 V/div with offset from 0 V

to ±100V

TDS 794D: ±1% for all sensitivities from 10 mV/div to 1 V/div over permitted offset range

Accuracy, DC Voltage Measurement,

Averaged (using Average mode)

Measurement type

DC Accuracy

Average of ≥ 16 waveforms

TDS 600B: ±((1.5% × | reading – Net Offset | )

+ Offset Accuracy) + (0.06 div × V/div))

TDS 500D, 700D: ±((1.0% × | reading – Net

Offset | ) + Offset Accuracy + (0.06 div x V/div))

Delta volts between any two averages TDS 600B: ±((1.5% × | reading | ) +

of ≥ 16 waveforms acquired under the (0.1 div × V/div) + 0.3 mV)

same setup and ambient conditions

TDS 500D, 700D: ±((1.0% × | reading | )

(0.1 div x V/div) + 0.3 mV)

Accuracy, Offset

All except TDS 794D

TDS 600B

Offset accuracy

TDS 500D/700D

Offset accuracy

Volts/Div setting

1 mV/div – 100 mV/div

±((0.2% × | Net Off-

)

set | + 1.5 mV +

(0.6 div x V/div))

set | ) + 1.5 mV +

(0.1 div x V/div))

101 mV/div – 1 V/div

1.01 V/div – 10 V/div

±((0.25% × | Net Off-

)

set | + 15 mV +

(0.6 div x V/div))

set | ) + 15 mV +

(0.1 div x V/div))

±((0.25% × | Net Off-

1 | )

set + 150 mV +

set | ) + 150 mV +

( 0.6 div x V/div))

(0.1 div x V/div))

Accuracy, Offset

TDS 794D

Volts/Div setting

TDS 794D Offset accuracy

10 mV/div – 100 mV/div

±((0.2% × | Net Off-

)

set | + 1.5 mV +

(0.1 div x V/div))

101 mV/div – 1 V/div

±((0.25% × | Net Off-

)

set | + 15 mV +

(0.1 div x V/div))

Analog Bandwidth, DC-50 W Coupled

and Bandwidth selection is FULL,

TDS 600B

TDS 620B & 644B

Bandwidth

TDS 680B & 684B

Bandwidth

Volts/Div

10 mV/div – 1 V/div

5 mV/div – 9.95 mV/div

2 mV/div – 4.98 mV/div

1 mV/div – 1.99 mV/div

DC – 500 MHz

DC – 450 MHz

DC – 300 MHz

DC – 250 MHz

DC – 1 GHz

DC – 750 MHz

DC – 600 MHz

DC – 500 MHz

2–20

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Warranted Characteristics

Table 2–10: Warranted characteristics — Signal acquisition system (cont.)

Name

Description

Analog Bandwidth, DC-50 W Coupled

and Bandwidth selection is FULL,

TDS 500D/700D

TDS 520D, 540D,

724D & 754D

Bandwidth

TDS 580D &

TDS 784D

Bandwidth

Volts/Div

10 mV/div – 1 V/div

5 mV/div – 9.95 mV/div

2 mV/div – 4.98 mV/div

1 mV/div – 1.99 mV/div

DC – 500 MHz

DC – 450 MHz

TDS 794D

DC – 1 GHz

DC – 750 MHz

DC – 600 MHz

DC – 500 MHz

Volts/Div

Bandwidth

10 mV/div – 1 V/div

DC – 2 GHz

Crosstalk (Channel Isolation)

≥100:1 at 100 MHz and ≥30:1 at the rated bandwidth for the channel’s Volt/Div setting,

for any two channels having equal Volts/Div settings

Delay Between Channels, Full

Bandwidth

TDS 600B: ≤100 ps for any two channels with equal Volts/Div and Coupling settings and

both channels’ deskew values set to 0

TDS 500D/700D: ≤50 ps for any two channels with equal Volts/Div and Coupling settings

and both channel deskew values set to 0.0 ms.

Input Impedance, DC–1 MW Coupled

1 MW ±0.5% in parallel with 10 pF ±3 pF (DC–50 W Coupled only on TDS 794D)

Input Impedance, DC–50 W Coupled

50 W ±1% with VSWR ≤1.3:1 from DC – 500 MHz, ≤1.5:1 from 500 MHz – 1 GHz

Input Impedance, DC–50 W Coupled

TDS 794D

50 W ±1.25% with VSWR ≤1.5:1 from 100 MHz – 1 GHz, VSWR ≤1.7:1 from 1 GHz –

2 GHz

Input Voltage, Maximum,

DC–1 MW,

TDS 600B: ±300 V CAT II, 400 V peak;

derate at 20 dB/decade above 1 MHz

AC–1 MW, or

GND Coupled

TDS 500D/700D: ±300 V CAT II, 400 V peak;

derate at 20 dB/decade above 1 MHz

(DC–50 W or GND Coupled

TDS 794D only)

Input Voltage, Maximum, DC-50 W or

AC–50 W Coupled

5 V , with peaks ≤ ±30 V

RMS

Input Voltage, Maximum, DC-50 W

Coupled TDS 794D

5 V , with peaks ≤ ±20 V

RMS

Lower Frequency Limit, AC Coupled

≤10 Hz when AC–1 MW Coupled; ≤200 kHz when AC–50 W Coupled

Net Offset = Offset – (Position × Volts/Div). Net Offset is the nominal voltage level at the oscilloscope input that

corresponds to the center of the A-D converter’s dynamic range. Offset Accuracy is the accuracy of this voltage level.

The limits given are for the ambient temperature range of 0_C to +30_C. Reduce the upper bandwidth frequencies by

5 MHz for the TDS 600B, by 2.5 MHz for the 500 MHz TDS 500D/700D models, by 5 MHz for the 1 GHz TDS 500D/700D

models, and by 10 MHz for the 2 GHz TDS 500D/700D models for each _C above +30_C.

The AC Coupled Lower Frequency Limits are reduced by a factor of 10 when 10X passive probes are used.

2–21

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Warranted Characteristics

Table 2–11: Warranted characteristics — Time base system

Name

Description

Accuracy, Long Term Sample Rate and

Delay Time

TDS 600B: ±100 ppm over any ≥1 ms interval

TDS 500D/700D: ±25 ppm over any ≥1 ms interval

Table 2–12: Warranted characteristics — Triggering system

Name

Description

Sensitivity, Edge-Type Trigger, Coupling Trigger source Sensitivity

set to “DC”

Any Channel

TDS 620B & 644B: 0.35 division from DC to 50 MHz,

increasing to 1 division at 500 MHz

TDS 680B & 684B: 0.35 division from DC to 50 MHz,

increasing to 1 division at 1 GHz

TDS 500D, 724D, & 754D: 0.35 division from DC to 50 MHz,

increasing to 1 division at 500 MHz

TDS 580D & 784D: 0.35 division from DC to 50 MHz, increasing to

1 division at 1 GHz

TDS 794D: 0.35 division from DC to 50 MHz,

increasing to 1 division at 1.5 GHz

TDS 600B: 250 mV from DC to 50 MHz,

increasing to 500 mV at 100 MHz

Auxiliary

TDS 500D, 724D, & 754D: 400 mV from DC to 50 MHz, increasing to

750 mV at 100 MHz

TDS 580D & 784D: 250 mV from DC to 50 MHz,

increasing to 500 mV at 100 MHz

TDS 794D: 250 mV from DC to 50 MHz,

increasing to 500 mV at 100 MHz

Width, Minimum Pulse and Rearm, for

Pulse Triggering

For vertical settings > 10 mV/div. and ≤1 V/div at the BNC input

Minimum pulse

width

Pulse class

Glitch

Minimum re-arm width

2 ns + 5% of Glitch Width Setting

2 ns

The minimum pulse widths and rearm

widths and transition times required for

Pulse-Type triggering.

1 ns

Runt

2 ns

Time-Qualified 2 ns

Runt

TDS 700D: 8.5 ns + 5% of Width Setting

Width

1 ns

2 ns + 5% of Width Upper Limit Setting

TDS 700D: 8.5 ns + 5% of Delta Time Setting

Timeout

Slew Rate

1 ns

600 ps

2–22

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Warranted Characteristics

Table 2–12: Warranted characteristics — Triggering system (Cont.)

Name

Description

Time range

1 ns to 500 ns

Accuracy (Time) for Pulse-Glitch or

Pulse-Width Triggering

Accuracy

±(20% of setting + 0.5 ns)

500 ns to 1 s

±(100 ns + 0.01% of Setting)

Input Signal Sync Amplitude for Stable

Triggering, NTSC and PAL modes

(Option 05 Video Trigger)

Field selection “Odd”, “Even”, or “All”: 0.6 division to 4 divisions

Field selection “Numeric”: 1 division to 4 divisions (NTSC mode)

Jitter (Option 05 Video Trigger)

60 ns on NTSC or PAL signal

p-p

The minimum sensitivity for obtaining a stable trigger. A stable trigger results in a uniform, regular display triggered on

the selected slope. The trigger point must not switch between opposite slopes on the waveform, and the display must not

“roll” across the screen on successive acquisitions. The TRIG’D LED stays constantly lighted when the SEC/DIV setting

is 2 ms or faster but may flash when the SEC/DIV setting is 10 ms or slower.

For Slew Rate Triggering, this is the minimum transition time, defined to be the time the user’s signal spends between

the two trigger threshold settings.

Table 2–13: Warranted characteristics — Output ports, probe compensator, and power requirements

Name

Description

Logic Levels, Main- and Delayed-Trigger Characteristic

Limits

Outputs

Vout (HI)

≥2.5 V open circuit; ≥1.0 V into a 50 W

load to ground

Vout (LO)

≤0.7 V into a load of ≤4 mA;

≤0.25 V into a 50 W load to ground

Output Voltage and Frequency,

Probe Compensator

Characteristic

Limits

Output Voltage

0.5 V (base-top) ±1% into a ≥50 W load

Frequency

1 kHz ±5%

Output Voltage, Signal Out (CH 3 )

For TDS 600B: 20 mV/division ±20% into a 1 MW load;

10 mV/division ±20% into a 50 W load

For TDS 500D/700D:

22 mV/division ±20% into a 1 MW load;

11 mV/division ±20% into a 50 W load

Source Voltage

100 to 240 VAC , continuous range, CAT II

RMS

Source Frequency

45 Hz to 440 Hz

Power Consumption

≤350 W (450 VA)

CH 3 signal out is present at the rear panel if CH 3 (AUX 1 on the TDS 620B or 680B) is selected as the trigger source for

the main and/or delayed trigger systems. It is not available when a channel other than CH3 (AUX 1 on the TDS 620B or

680B) is the source for the Video Trigger when Option 05 is installed.

2–23

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Warranted Characteristics

Table 2–14: Warranted characteristics — Environmental

Name

Description

Atmospherics

Temperature (no disk in floppy drive):

TDS 600B:

Operating: +4_ C to +45_ C

Floppy disk drive: Operating: +10_ C to +45_ C

Nonoperating: –22_ C to +60_ C

TDS 500D/700D: Operating: +0_ C to +50_ C

Floppy disk drive: Operating: +10_ C to +50_ C

Nonoperating: –22_ C to +60_ C

Relative humidity (no disk in floppy drive):

Operating: 20% to 80%, at or below +32_ C,

upper limit derates to 30% relative humidity at +45_ C

Nonoperating: 5% to 90%, at or below +31_ C,

upper limit derates to 20% relative humidity at 60_ C

Altitude:

To 4570 m (15,000 ft.), operating (excluding hard disk drive)

To 3048 m (10,000 ft.), operating (including hard disk drive)

To 12190 m (40,000 ft.), nonoperating

Dynamics

Random vibration (floppy disk not installed):

0.31 g rms, from 5 to 500 Hz, 10 minutes each axis, operating

3.07 g rms, from 5 to 500 Hz, 10 minutes each axis, nonoperating

1, 2

Emissions (TDS 500D/700D)

Meets or exceeds the requirements of the following standards:

FCC Code of Federal Regulations, 47 CFR, Part 15, Subpart B, Class A

European Community Requirements

EN 55011 Class A Radiated Emissions

EN 55011 Class A Conducted Emissions

EN 50081–1

EN60555–2 Power Line Harmonic Emissions

1, 2

Emissions (TDS 600B)

Meets or exceeds the requirements of the following standards:

FCC Code of Federal Regulations, 47 CFR, Part 15, Subpart B, Class A

EN 50081–1 European Community Requirements

EN 55022 Radiated Emissions Class B

EN 55022 Class B Conducted Emissions

EN60555–2 Power Line Harmonic Emissions

2–24

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Warranted Characteristics

Table 2–14: Warranted characteristics — Environmental (cont.)

Name

Description

Meets or exceeds the EMC requirements of the following standards:

1, 2

Susceptibility

EN 50082–1

IEC 801-2

European Community Requirements

Electrostatic Discharge Performance Criteria B

ąIEC 801-3

Radiated Susceptibility 3 V/meter from 27 MHz to 500 MHz

unmodulated

IEC 801-4

Fast Transients Performance Criteria B

AC Surge Performance Criteria B

ąIEC 801-5

Approvals

Conforms to and is certified where appropriate to:

UL 3111–1 – Standard for electrical measuring and test equipment

CAN/CSA C22.2 no. 1010.1 – Safety requirements for electrical equipment for

measurement, control and laboratory use

VGA output cable needs to be terminated, if connected at all, for the Instrument to meet these standards. The test will

pass with LCOM part # CTL3VGAMM–5.

The GPIB cable connected to the instrument for certain of the emissions tests must be “low EMI” having a high-quality

outer shield connected through a low impedance to both connector housings. Acceptable cables are Tektronix part

numbers 012-0991-00, -01, -02, and -03. In order to maintain the EMI performance conforming to the above regulations,

the following cables, or their equivalent, should be used: a shielded Centronics cable, 3 meters in length, part number

012-1214-00, and a shielded RS-232 cable, 2.7 meters in length, CA part number 0294-9.

UL 3111, CSA 22.2 no.1010 Safety Certification Compliance:

Temperature (operating) 5 to +40 C

Altitude (maximum operating): 2000 meters

Equipment Type: Test and Measurement

Safety Class: Class I (as defined in IEC 1010–1, Annex H) – grounded product

Overvoltage Category: Overvoltage Category II (as defined in IEC 1010–1, Annex J)

Pollution Degree: Pollution Degree 2 (as defined in IEC 1010–1)

Note – Rated for indoor use only

2–25

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Warranted Characteristics

Table 2–15: Certifications and compliances

EC Declaration of Conformity

(TDS 500D and TDS 700D)

Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility. Compliance was

demonstrated to the following specifications as listed in the Official Journal of the European

Communities:

EMC Directive 89/336/EEC:

EN 55011

EN 50081-1 Emissions:

EN 60555-2

Class A Radiated and Conducted Emissions

AC Power Line Harmonic Emissions

EN 50082-1 Immunity:

IEC 801-2

Electrostatic Discharge Immunity

RF Electromagnetic Field Immunity

Electrical Fast Transient/Burst Immunity

Power Line Surge Immunity

IEC 801-3

IEC 801-4

IEC 801-5

Australian Declaration of

Conformity – EMC

Conforms with the following standards in accordance with the Electromagnetic Compatibility

Framework:

(TDS 500D and TDS 700D)

AS/NZS 2064.1/2

Class A radiated and Conducted Emissions

EC Declaration of Conformity

(TDS 600B)

Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility. Compliance was

demonstrated to the following specifications as listed in the Official Journal of the European

Communities:

EMC Directive 89/336/EEC:

EN 50081-1 Emissions:

EN 55022

EN 60555-2

Class B Radiated and Conducted Emissions

AC Power Line Harmonic Emissions

EN 50082-1 Immunity:

IEC 801-2

Electrostatic Discharge Immunity

RF Electromagnetic Field Immunity

Electrical Fast Transient/Burst Immunity

Power Line Surge Immunity

IEC 801-3

IEC 801-4

IEC 801-5

EC Declaration of Conformity –

Low Voltage

Compliance was demonstrated to the following specification as listed in the Official Journal of the

European Communities:

Low Voltage Directive 73/23/EEC

EN 61010-1:1993

Safety requirements for electrical equipment for measurement,

control, and laboratory use

2–26

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Typical Characteristics

This subsection contains tables that list the various typical characteristics which

describe the TDS 500D, TDS 600B and TDS 700D oscilloscopes.

Typical characteristics are described in terms of typical or average performance.

Typical characteristics are not warranted.

Table 2–16: Typical characteristics — Signal acquisition system

Name

Description

Analog Bandwidth, DC-50 W Coupled

with P6243 or P6245 Probe and

Bandwidth selection is FULL

Volts/Div as read out on screen

10 V/div – 100 V/div

520D, 540D, 724D & 754D Bandwidth

Not Applicable

100 mV/div – 10 V/div

50 mV/div – 99.5 mV/div

20 mV/div – 49.8 mV/div

10 mV/div – 19.9 mV/div

DC – 500 MHz

TDS 520D, 540D, 724D & 754D

DC – 500 MHz

DC – 450 MHz (P6243)

DC – 500 MHz (P6245)

Analog Bandwidth, DC-50 W Coupled

with P6245 Probe and

Bandwidth selection is FULL

TDS 580D & TDS 784D

Volts/Div as read out on screen

10 V/div –100 V/div

TDS 580D & TDS 784D

(Not Applicable)

DC – 1 GHz

100 mV/div – 10 V/div

50 mV/div – 99.5 mV/div

20 mV/div – 49.8 mV/div

10 mV/div – 19.9 mV/div

Volts/Div as read out on screen

DC – 750 MHz

DC – 600 MHz

DC – 500 MHz

TDS 794D

Analog Bandwidth, DC-50 W Coupled

with P6217 Probe

TDS 794D

100 mV/div – 10 V/div

DC – 2 GHz

Analog Bandwidth, DC-1M W Coupled

with P6139A Probe and Bandwidth

selection is FULL

TDS 520D, 540D, 580D,

724D, 754D & 784D

TDS 520D, 540D, 724D, 754D & 784D

Bandwidth

Volts/Div as read out on screen

10 V/div – 100 V/div

500 MHz

100 mV/div – 10 V/div

50 mV/div – 99.5 mV/div

20 mV/div – 49.8 mV/div

10 mV/div – 19.9 mV/div

2–27

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Typical Characteristics

Table 2–16: Typical characteristics — Signal acquisition system (cont.)

Name

Description

Analog Bandwidth, DC-50 W Coupled

with P6139A Probe (TDS 620B & 644B)

or P6245 Probe (TDS 680B & 684B) and

Bandwidth selection is FULL

TDS 600B

TDS 620B & 644B

Bandwidth

TDS 680B & 684B

Bandwidth

Volts/Div as read out on screen

10 V/div – 100 V/div

(Not Applicable)

DC – 500 MHz

DC – 450 MHz

DC – 300 MHz

DC – 250 MHz

(Not Applicable)

DC – 1 GHz

100 mV/div – 10 V/div

50 mV/div – 99.5 mV/div

20 mV/div – 49.8 mV/div

10 mV/div – 19.9 mV/div

DC – 750 MHz

DC – 600 MHz

DC – 500 MHz

Accuracy, Delta Time Measurement

The limits are given in the following table for signals having amplitude greater than

5 divisions, reference level = 50%, filter set to (sinX/X), acquired at 5 mV/div or greater.

For the TDS 700D, pulse duration < 10 div. Channel skew not included.

For the Single Shot condition, 1.4 ≤ T /S ≤ 4, where

S is the sample interval and T is the displayed rise time.

TDS 600B: For the averaged condition, 1.4 ≤ T /W ≤ 40, where W is the Waveform

Interval, as described elsewhere in these specifications.

TDS 600B: Extra error in the measurement will occur for two-channel measurements due

to channel-to-channel skew. This is described elsewhere in these specifications.

Time measurement accuracy

Conditions for accuracy listed at right

are: Single Shot or Sample mode (or

HiRes mode on the TDS 500D/700D),

with Full Bandwidth selected.

TDS 600B:±( (0.20 × sample interval) + (100 ppm × | Reading |) + (0.05 × W ) )

TDS 600B example: at 5 GS/s, 5 ns/div, measuring a 40 ns wide pulse,

accuracy = ±(40 ps + 4 ps + 5 ps) = ±49 ps.

TDS 500D/700D: ±0.15 sample interval + (25 ppm × | Reading |) + t/div/1000

TDS 500D/700D example: at 4 Gs/s, accuracy = 37.5 ps

Conditions for accuracy listed at right

are: ≥ 100 Averages, with Full Band-

width selected, and for TDS

TDS 600B: ±(10 ps + (100 ppm × | Reading |) + (0.25 × W ) )

TDS 500D/700D: 20 ps + (25 ppm × | Reading |) + t/div/1000

500D/700D, repetitive mode.

Calculated Rise Time, TDS 600B

620B & 644B

Rise time

680B & 684B

Rise time

Volts/Div setting

10 mV/div – 1 V/div

5 mV/div – 9.95 mV/div

2 mV/div – 4.98 mV/div

1 mV/div – 1.99 mV/div

900 ps

1 ns

450 ps

600 ps

750 ps

900 ps

1.5 ns

1.8 ns

2–28

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Typical Characteristics

Table 2–16: Typical characteristics — Signal acquisition system (cont.)

Name

Description

Calculated Rise Time,

TDS 500D/700D

520D, 540D, 724D,

& 754D Rise time

580D & 784D

Rise time

Volts/Div setting

10 mV/div – 1 V/div

5 mV/div – 9.95 mV/div

2 mV/div – 4.98 mV/div

1 mV/div – 1.99 mV/div

Volts/Div setting

10 mV/div – 1 V/div

Input frequency

800 ps

400 ps

530 ps

600 ps

800 ps

890 ps

Calculated Rise Time,

794D Rise time

200 ps

TDS 794D

Effective Bits — TDS 600B

Effective bits

6.3 bits

98 MHz

The chart on the right gives the typical

effective bits for a 9-division p-p

sine-wave input, 50 mV/div, 10 ns/div

(5 GS/s), with a record length of 1000

points

245 MHz

490 MHz

990 MHz

6.0 bits

5.5 bits

5.2 bits (TDS 680B & 684B only)

Effective Bits — TDS 520D & 724D

Sample rate

1 GS/s

10 MS/s & HiRes

Input frequency

1 MHz – 9.2 divs

490 MHz – 6.5 divs

The chart on the right gives the typical

effective bits for a sine wave adjusted

to 9.2 divisions at 1 MHz, 50 mV/div @

25° C.

6.8 bits

9.7 bits

N/A

6.5 bits

Effective Bits — TDS 540D & 754D

Sample rate

2 GS/s

10 MS/s & HiRes

9.7 bits

Input frequency

1 MHz – 9.2 divs

500 MHz

The chart on the right gives the typical

effective bits for a sine wave adjusted

to 9.2 divisions at 1 MHz, 50 mV/div @

25° C.

6.8 bits

N/A

Effective Bits — TDS 580D, 784D & 794D

Sample rate

The chart on the right gives the typical

effective bits for a sine wave adjusted

to 9.2 divisions at 1 MHz, 50 mV/div @

25° C.

4 GS/s

6.6 bits

5.5 bits

4.5 bits

10 MS/s & HiRes

Input frequency

1 MHz – 9.2 divs

9.7 bits

N/A

1 GHz – 6.5 divs

2 GHz – 6.5 divs (TDS 794D only)

250 MHz

N/A

Frequency Limit, Upper, 250 MHz

Bandwidth Limited

Frequency Limit, Upper, 20 MHz

Bandwidth Limited

20 MHz

2–29

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Typical Characteristics

Table 2–16: Typical characteristics — Signal acquisition system (cont.)

Name

Description

Step Response Settling Errors

Settling error (%) at

Volts/Div setting

± Step amplitude

≤2 V

20 ns 100 ns 20 ms

≤0.5% ≤0.2% ≤0.1%

≤1.0% ≤0.5% ≤0.2%

≤0.5% ≤0.2% ≤0.1%

≤1.0% ≤0.5% ≤0.2%

1 mV/div – 100 mV/div

101 mV/div – 1 V/div

1.01 V/div – 10 V/div

10 mV/div – 100 mV/div

101 mV/div – 1 V/div

≤20 V

≤200 V

≤1.5 V

Step Response Settling Errors

TDS 794D

≤3 V

The limits given are for the ambient temperature range of 0_C to +30_C. Reduce the upper bandwidth frequencies by

5 MHz for the TDS 600B or by 2.5 MHz for the TDS 500D/700D for each _C above +30_C.

The numbers given are valid 0_C to +30_C and will increase as the temperature increases due to the degradation in

bandwidth. Rise time is calculated from the bandwidth. It is defined by the following formula:

450

BW (MHz)

400

BW (MHz)

TDS 600B Rise Time (ns) +

TDS 500Dń700D Rise Time (ns) +

Note that if you measure rise time, you must take into account the rise time of the test equipment (signal source, etc.) that

you use to provide the test signal. That is, the measured rise time (RT ) is determined by the instrument rise time (RT ) and

the rise time of the test signal source (RTgen) according to the following formula:

RT_m+ RT_i) RT_gen

The values given are the maximum absolute difference between the value at the end of a specified time interval after the

midlevel crossing of the step and the value one second after the midlevel crossing of the step, expressed as a percentage

of the step amplitude.

Table 2–17: Typical characteristics — Triggering system

Name

Description

Accuracy, Trigger Level or Threshold, DC Trigger source

Accuracy

Coupled

Any Channel

±((2% × | Setting – Net Offset |)

+ (0.3 div × Volts/div Setting ) + Offset

Accuracy)

(for signals having rise and fall times

≥ 20 ns)

Auxiliary

Not calibrated or specified

Input, Auxiliary Trigger

The input resistance is ≥1.5 kW; the maximum safe input voltage is

±20 V (DC + peak AC).

Acquisition mode

Sample, Average

1,2

Trigger Position Error,

Edge Triggering

Trigger-position error

±(1 Waveform Interval + 1 ns)

Envelope

±(2 Waveform Intervals + 1 ns)

For all Time/Division ranges, the minimum holdoff is 250 ns and the maximum holdoff is 12

seconds. The minimum resolution is 8 ns for settings ≤ 1.2 ms.

Holdoff, Variable, Main Trigger

2–30

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Typical Characteristics

Table 2–17: Typical characteristics — Triggering system (cont.)

Name

Description

Lowest Frequency for Successful Operation 30 Hz

of “Set Level to 50%” Function

Sensitivity, Edge Trigger, Not DC Coupled

Typical signal level for stable

Trigger source

triggering

Same as the DC-coupled limits for frequen-

cies above 60 Hz. Attenuates signals below

60 Hz.

Noise Reject

Three times the DC-coupled limits.

High Frequency Reject

One and one-half times the DC-coupled

limits from DC to 30 kHz. Attenuates signals

above 30 kHz.

Low Frequency Reject

One and one-half times the DC-coupled

limits for frequencies above 80 kHz.

Attenuates signals below 80 kHz.

Sensitivities, Logic Trigger and Events

Delay, DC Coupled

1.0 division, from DC to 500 MHz, at vertical settings > 10 mV/div and ≤ 1 V/div at the

BNC input

Sensitivities, Pulse-Type Runt Trigger

1.0 division, from DC to 500 MHz, at vertical settings > 10 mV/div and ≤ 1 V/div at the

BNC input

Sensitivities, Pulse-Type Trigger Width and 1.0 division, at vertical settings > 10 mV/div and ≤ 1 V/div at the BNC input

Glitch

Width, Minimum Pulse and Rearm, for Logic For vertical settings > 10 mV/div and ≤ 1 V/div at the BNC input

Triggering or Events Delay

Minimum pulse

width

Minimum re-arm

width

Minimum time

between channels

Triggering type

Logic

Not Applicable

1 ns

2 ns

Events Delay

1 ns (for either + or Not Applicable

– pulse widths)

Width, Minimum Pulse and Rearm, for

Pulse Triggering

For vertical settings > 10 mV/div. and 3 1 V/div at the BNC input

Minimum pulse

width

Pulse class

Glitch

Minimum re-arm width

The minimum pulse widths and rearm

widths and transition times required for

Pulse-Type triggering.

1 ns

2 ns + 5% of Glitch Width Setting

2 ns

Runt

2 ns

Time-Qualified Runt 2 ns

TDS 600B: 7 ns + 5% of Width Setting

2 ns + 5% of Width Upper Limit Setting

Width

1 ns

Timeout

Slew Rate

1 ns

600 ps

TDS 600B: 7 ns + 5% of Delta Time Setting

2–31

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Typical Characteristics

Table 2–17: Typical characteristics — Triggering system (cont.)

Name

Description

Setup/Hold Time Violation Trigger,

Minimum Clock Pulse Widths

For vertical settings > 10 mV/div and ≤ 1 V/div at the BNC input,

the minimum requirements are:

Minimum Pulse Width,

Clock High

Minimum Pulse Width,

Clock Low

User Hold Time + 2.5 ns

2 ns

Input Signal Sync Amplitude for Stable

Triggering, HDTV and FLEXFMT modes

(Option 05 Video Trigger)

All field selections: 0.6 division to 4 divisions

Jitter for HDTV mode

17 ns

p-p

(Option 05 Video Trigger)

Sync Width Flex Format and HDTV

modes (Option 05 Video Trigger)

min. 400 ns

Sync Duty Cycle, Flex Format and HDTV min. 50 to 1

modes (Option 05 Video Trigger)

Hum Rejection

(Option 05 Video Trigger)

NTSC and PAL: –20 dB without any trigger spec deterioration. Triggering will continue

down to 0 dB with some performance deterioration.

The trigger position errors are typically less than the values given here. These values are for triggering signals having a

slew rate at the trigger point of ≥ 0.5 division/ns.

The waveform interval (WI) is the time between the samples in the waveform record. Also, see the footnote for the

characteristics Sample Rate Range or Interpolated Waveform Rates in Table 2–4, on page 2–12.

The minimum sensitivity for obtaining a stable trigger. A stable trigger results in a uniform, regular display triggered on the

selected slope. The trigger point must not switch between opposite slopes on the waveform, and the display must not

“roll” across the screen on successive acquisitions. The TRIG’D LED stays constantly lighted when the SEC/DIV setting is

2 ms or faster but may flash when the SEC/DIV setting is 10 ms or slower.

The minimum signal levels required for stable logic or pulse triggering of an acquisition, or for stable counting of

a DC-coupled, events-delay signal. Also, see the footnote for Sensitivity, Edge-Type Trigger, DC Coupled in this table.

(Stable counting of events is counting that misses no events and produces no extra, phantom events).

The minimum signal levels required for stable runt pulse triggering of an acquisition. Also, see the footnote for Sensitivity,

Edge-Type Trigger, DC Coupled in this table. (Stable counting of events is counting that misses no events).

The minimum signal levels required for stable pulse width or glitch triggering of an acquisition. Also, see the footnote for

Sensitivity, Edge-Type Trigger, DC Coupled in this table. (Stable counting of events is counting that misses no events).

For Logic, time between channels refers to the length of time a logic state derived from more than one channel must exist

to be recognized. For Events, the time is the minimum time between a main and delayed event that will be recognized if

more than one channel is used.

For Slew Rate Triggering, this is the minimum transition time, defined to be the time the user’s signal spends between the

two trigger threshold settings.

User Hold Time is the number selected by the user in the Hold Time Menu.

2–32

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