SPBD-1250A4Q1RT
Intelligent SFP Bi-Directional Transceiver
Module for Gigabit Ethernet
FEATURES
z RoHS compliant
z Digital Diagnostic SFF-8472 Compliant
z Simplex LC connector with 1310nm
Transmitter and 1490nm Receiver
z Integrated with WDM filter to cut 1550nm and
1650nm optical signal off
z Single + 3.3V power supply and TTL logic
interface
z Bellcore GR-468 compliant
z Laser class 1 product which comply with the
requirements of IEC 60825-1 and IEC 60825-2
Description
The SPBD-1250xxxx series are hot pluggable
3.3V Small-Form-Factor (SFP) Bi-Directional
transceiver module designed expressly for
high-speed communication applications that
require rates of up to 1250Mbit/sec. It is compliant
with the Gigabit Ethernet standards, as well as the
SFP Multisource Agreement (MSA).
Application
z IEEE 802.3ah 1000BASE-BX10
z Gigabit Ethernet Application
z FTTx WDM Broadband Access
z Switch to switch/backbone interface
The SPBD-1250xxxx transceivers provide with
the LC receptacle that is compatible with the
industry standard LC connector. The transceiver is
also compatible with industry standard RFT
connector and cage. It also includes a LOS (Loss
Of Signal) circuit that provides a TTL logic-high
output when an unusable optical signal level is
detected.
Performance
z SPBD-1250A4Q1RT data link up to 10km in
The module includes 1310nm un-cool FP laser,
InGaAs PIN, Preamplifer and WDM filter in a
high-integrated optical assembly for high-density
system application. The SFP Bi-Directional
transceiver can upgrade transmission capacity very
convenient without installing new fibers.
9/125um single mode fiber.
z Support industrial temperature operating
1
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Note (4): Spectral Width (RMS)
Transmitter Spectral Limits
RMS spectral width(max)
Center Wavelength
1000Base-BX10-U
4
3
2
1
0
nm
nm
1260
1270
1280
1290
1295
1297
1329
1331
1340
1350
1360
2.09
2.52
3.13
3.50
3.06
2.58
1240
1260
1280
1300
1320
1340
1360
1380
Center Wavelength (nm)
Note (5). Eye Mask definition
1+Y3
1
1-Y1
0.5
Y1
0
-Y2
1-X1
1
1-X2
X1 X2
0
Normalized Time
4. Specification of Receiver
Parameter
Input Optical Wavelength
Receiver Sensitivity
Symbol
λIN
Min.
1480
Typ.
Max.
1500
-23
Unit
nm
Note
PIN-PD
Note (1)
PIN
PSAT
dBm
dBm
uW
dBm
dBm
dBm
dB
Input Saturation Power (Overload)
-3
5.0
-21.1
-
-44
0.5
Receive Sensitivity OMA
OMA
Note (2)
LOS-Deassert Power
LOS-Assert Power
LOS Hysteresis
PA
PD
PA-PD
-24
Note (3)
Note (4)
2
6
-12
Receiver Reflectance
dB
3
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SPBD-1250A4Q1RT
Stressed Receive sensitivity
-15.4
44.8
-13.5
2.6
dBm
uW
dBm
dB
ps
ps
Stressed Receive sensitivity OMA
Vertical Eye-closure Penalty
Deterministic Jitter
Total Jitter
Output Data Rise/Fall time
Receiver 3dB upper cutoff frequency
V ECP
DJ
TJ
170
266
260
1500
-43
-33
-33
tr/tf
ps
Note (5)
MHz
dB
dB
dB
1260 to 1360nm
Optical Isolation
from
External 1550 to 1560nm
Source
1640 to 1665nm
Note (1). Measured with 1490nm, ER=9dB; BER =<10-12@PRBS=27-1 NRZ
Note (2). Specified with minimum optical extinction ration of 9dB.
Note (3). When LOS asserted, the data output is Low-level (fixed)
Note (4). When the terminal is viewed from the optical path, the reflection toward the optical path of the
optical signal with a central wavelength of 1480nm to 1500nm transmitted to terminal.
Note (5). These are 20%~80% values
5. Electrical Interface Characteristics
Parameter
Symbol
Min.
Typ.
Max.
Unit
Note
Transmitter
Total Supply Current
ICC
VDT
RIN
A
2400
120
VCC
0.8
mA
mVp-p
Ohm
V
V
V
Note (1)
Differential Data Input Swing
Differential line input Impedance
Transmitter Disable Input-High
Transmitter Disable Input-Low
Transmitter Fault Output-High
Transmitter Fault Output-Low
Transmitter Fault Pull up Resistor
Receiver
500
80
2
0
2
100
VDISH
VDISL
VTXFH
VTXFL
RTX_FAULT
Note (2)
VCC+0.3
0.8
0
4.7
V
kΩ
10
Note (3)
Total Supply Current
ICC
VDR
VLOSH
VLOSL
RRXLOS
B
900
VCC+0.3
0.8
mA
mVp-p
V
V
kΩ
Note (1)
Note (4)
Differential Data Output Swing
LOS Output Voltage-High
LOS Output Voltage-Low
Receiver LOS Load
400
2
0
4.7
10
Note (3)
Note (1). A (TX)+ B (RX) = 300mA
(A: Not include termination circuit; B: using a resister of 150Ω between Data-output and ground)
Note (2). There is an internal 4.7 to 10kΩ pull-up resistor to VccT.
Note (3). Pull up to VCC on host Board.
Note (4). Internally AC coupled with CML output, but requires a 100Ohm differential termination at or
internal to Serializer/ Deserializer.
4
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SPBD-1250A4Q1RT
6. Enhanced Digital Diagnostic Interface
The memory map in the following describes an extension to the memory map defined in SFP MSA.
The enhanced interface uses the two wire serial bus address 1010001X(A2h) to provide diagnostic
information about the module’s present operating conditions.
2 wire address 1010000 X (A0h)
2 wire address 1010001 X (A2h)
0
0
Alarm and Warning Thresholds
(56 bytes)
Serial ID Defined by SFP MSA
(96 bytes)
55
56
Cal Constants
(40 bytes)
95
96
95
96
Real Time Diagnostic Interface
(24 bytes)
Vender Specific
(32 bytes)
119
120
Vender Specific
127
128
127
128
User Writable EEPROM
(120 bytes)
Reserved in SFP MSA
(128 bytes)
247
248
255
Vender Specific
(8 bytes)
255
7. Digital Diagnostic Monitor Accuracy
Parameter
Transceiver Internal Temperature
Power Supply Internal Voltage
TX Bias Current
Accuracy
Unit Calibration
Note
TC=-40~+85℃
VCC=3.3V±5%
℃
± 3℃
Internal
V
Internal
± 3%
± 10%
± 3dB
± 3dB
mA
dBm
dBm
Internal Specified by nominal bias value
Internal -9 to -3dBm
Internal -23 to -3dBm
TX Optical Power
RX Optical Power
Note. Temperature and Voltage is measured internal to the transceiver.
5
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SPBD-1250A4Q1RT
8. Pin Description
SFP Transceiver Electrical Pad Layout
Host Board Connector Pad Layout
Pin Function Definitions
Pin Num.
Name
VeeT
TX Fault
Function
Plug Seq.
Notes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Transmitter Ground
Transmitter Fault Indication
Transmitter Disable
1
3
3
3
3
3
3
3
1
1
1
3
3
1
2
2
1
3
3
1
Note (1)
Note (2)
Note (3)
TX Disable
MOD-DEF2 Module Definition 2
MOD-DEF1 Module Definition 1
MOD-DEF0 Module Definition 0
Rate Select Not Connect
LOS
VeeR
VeeR
VeeR
RD-
RD+
VeeR
VccR
VccT
VeeT
TD+
Note (4), 2 wire serial ID interface
Note (4), 2 wire serial ID interface
Note (4), Grounded in Module
Function not available
Loss of Signal
Note (5)
Receiver Ground
Receiver Ground
Receiver Ground
Inv. Received Data Out
Received Data Out
Receiver Ground
Receiver Power
Transmitter Power
Transmitter Ground
Transmit Data In
Inv. Transmit Data In
Transmitter Ground
Note (6)
Note (6)
Note (7)
Note (7)
Note (8)
Note (8)
TD-
VeeT
Plug Seq.: Pin engagement sequence during hot plugging.
6
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Notes:
1) Circuit ground is internally isolated from frame (chassis) ground. Tx GND and Rx GND may be internally isolated
within the TRx module.
2) TX Fault is an open collector/drain output, which should be pulled up with a 4.7K~10KΩ resistor on the host board.
Pull up voltage between 2.0V and VccT+0.3V. The output indicates Low when the transmitter is operating
normally, and High with a laser fault including laser end-of-life. In the low state, the output will be pulled to less
than 0.8V.
3) TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module
with a 4.7 – 10 K Ω resistor. Its states are:
Low (0 – 0.8V):
(>0.8, < 2.0V):
High (2.0 – 3.465V):
Open:
Transmitter on
Undefined
Transmitter Disabled
Transmitter Disabled
4) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10KΩresistor on the
host board. The pull-up voltage shall be VccT or VccR.
Mod-Def 0 is grounded by the module to indicate that the module is present
Mod-Def 1 is the clock line of two-wire serial interface for serial ID
Mod-Def 2 is the data line of two-wire serial interface for serial ID
5) LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor.
Pull up voltage between 2.0V and VccR+0.3V. When high, this output indicates the received optical power is
below the worst-case receiver sensitivity. Low indicates normal operation. In the low state, the output will be
pulled to less than 0.8V.
6) RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be
terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the module and is thus
not required on the host board.
7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP
connector pin. Recommended host board power supply filtering is shown below page. Inductors with DC
resistance of less than 1 Ohm should be used in order to maintain the required voltage at the SFP input pin with
3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of the SFP
transceiver module will result in an inrush current of no more than 30 mA greater than the steady state value.
8) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100 Ω
differential termination inside the module. The AC coupling is done inside the module and is thus not
required on the host board. The inputs will accept differential swings of 500 – 2400 mV (250 – 1200
mV single-ended), though it is recommended that values between 500 and 1200 mV differential (250 –
600 mV single-ended) be used for best EMI performance.
7
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SPBD-1250A4Q1RT
9. Recommend Interface Circuit
1uH
1uH
VCC
3.3V
Protocol Vcc
DELTA SFP Module
RES1
10uF
0.1uF
VccT
0.1uF
10k Ohms
Tx_Disable
Tx_Fault
Tx_Disable
Tx_Fault
TD +
0.01uF
Laser Driver
100 Ohms
Laser Diode
TD -
0.01uF
VeeT
Protocol IC
SerDes IC
VccR
RES1
10uF
0.1uF
RD +
0.01uF
0.01uF
Preamp &
Quantizer
100 Ohms*
Photo Diode
RD -
Rx_LOS
VeeR
Rx_LOS
3.3V
RES1
RES1
RES1
Mod_def 2
Mod_def 1
Mod_def 0
PLD / PAL
EEPROM
RES1 = 4.7k to 10k Ohms
* Depands on SerDes IC used
SFP Host Board Schematic
Design criterion of the capacitor used is the
resonant frequency and its value must be in the
order of the nominal data rate. Short trace
lengths are mandatory.
Recommended Host Board Supply Filtering Network
8
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SPBD-1250A4Q1RT
10. Outline Dimensions
Class 1 Laser Product
XXXX nm Tx / Rx XXXX nm
Week (52Weeks/Year) : 1月2日=01
Transmitter Wavelength
Latch Color Identifier
Blue
Violet
1310nm
1490nm
9
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11. Regulatory Compliance
Feature
Test Method
Reference
Performance
Electrostatic Discharge Human Body Model MIL-STD-883E Method 3015.7
(ESD) to the Electrical
Pins
(HBM)
EIA-JESD22-A114
(1) Satisfied with
electrical
Machine Model (MM) EIA-JESD22-A115
Electrostatic Discharge Contact Discharge
IEC/EN 61000-4-2
IEC/EN 61000-4-2
characteristics of
product spec.
(ESD) to the Simplex
Air Discharge
Receptacle
Radio Frequency
Electromagnetic Field
Immunity
IEC/EN 61000-4-3
(2) No physical damage
FCC Part 15 Class B
EN 55022 Class B
(CISPR 22A)
Electromagnetic
Interference (EMI)
FDA/CDRH
FDA 21CFR 1040.10, 1040.11 CDRH File # 0420993
Laser Eye Safety
TUV
IEC/EN 60825-1
IEC/EN 60825-2
IEC/EN 60950
TUV
Certificate
#
R50032471
TUV
Component Recognition
UL/CSA
UL 60950
UL File # E239394
Appendix A. Document Revision
Version No.
Date
2006-08-15 Preliminary datasheet
2007-03-12 Change the specification of Optical Rise/Fall Time from 200ps to 260ps.
Description
S0
S1
10
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