REB-3300 Operational Manual
REB-3300 Operational Manual
Version 1.0
2004/11/24
This document contains information highly confidential to RoyalTek Company
LTD (RoyalTek). It is provided for the sole purpose of the business discussions
between supplier and RoyalTek and is covered under the terms of the
applicable Non-Disclosure Agreements. Disclosure of this information to other
parties is prohibited without the written consent of RoyalTek.
Prepared by RoyalTek Company LTD.
8F,256 Yang Guang Street, Neihu Chiu,Taipei, Taiwan, R.O.C.
TEL: 886-2-77215000
FAX: 886-2-77215666
http://www.royaltek.com/contact
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REB-3300 Operational Manual
RoyalTek GPS Module: REB-3300 Operational Manual
Introduction
RoyalTek REB-3300 low power and small form factor board is the newest generation of
RoyalTek GPS Receiver. The GPS receiver is powered by SiRFStarIIe/LP technology with
XTrac 2.0 firmware and RoyalTek proprietary navigation algorithm that providing you more
stable navigation data. The smallest form factor and miniature design is the best choice to be
embedded in a portable device like PDA, personal position and navigation like personal locator,
speed camera detector and vehicle locator. The excellent sensitivity of REB-3300 gets the
great performance when going though the urban canyon and foliage.
Product Features
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12 parallel channels
Operable from 3.3V/65mA continuous mode.
SMT type with stamp holes
Pin reserved for Backup battery and RF connector
TCXO design
7 I/O lines(GPIO) available to connect
0.1 second reacquisition time
Small form factor.
NMEA-0183 compliant protocol/custom protocol.
Enhanced algorithm for navigation stability.
Excellent sensitive for urban canyon and foliage environments.
SBAS (WAAS, EGNOS and MSAS) support
Auto recovery while RTC crashes
Trickle power supported
ARM 7 CPU core accessible
4/8/16Mbits Flash Memory
Optional
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SiRFStarII normal version firmware
SiRFStarII enhance(ES) version firmware
XTrac 2.0 high sensitivity(HS) version firmware
Product applications
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Automotive navigation
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REB-3300 Operational Manual
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Personal positioning and navigation
Marine navigation
Timing application
Product Picture
REB-3300
Pin16
Pin 15
Pin 32
Pin 1
REB-3300 Interface Board
RoyalTek Evaluation Kit REV-2000 for REB-3300
(Please refer to RoyalTek Evaluation Kit REV-2000 for REB-3300 Operational Manual
for more information)
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REB-3300 Operational Manual
REB-3300 Series System Block Diagram
REB-3300 engine board consists of SiRF star IIe/LP chipset technology, 4/8/16Mbits flash
memory, and proprietary software. The system is described as follows.
a. Support external active patch antenna
b. Support 4/8/16 Mega bits flash memory
c. 30 I/O pins
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REB-3300 Operational Manual
REB-3300 Technique Specification
Impedance：50Ω
No
Function
Specification
GPS receiver
1
2
3
4
5
Chipset
Frequency
Code
Channels
Sensitivity (Tracking)
SiRF GSP 2e/LP, GRF 2i/LP
L1 1575.42MHz.
C.A. Code.
12.
It shall show C/No ≧ 37 dB-Hz when external power =
-130dBm.
28 dBHz (SSII normal version software)
28 dBHz (SSII ES version software)
16 dBHz (SSII XTrac version software)
36 dBHz (SSII normal version software)
33 dBHz (SSII ES version software)
32 dBHz (SSII XTrac version software)
36 dBHz (SSII normal version software)
33 dBHz (SSII ES version software)
28 dBHz (SSII XTrac version software)
45sec typical (SSII normal version software, Open sky)
75sec typical (SSII ES version software, Open sky)
45sec typical (SSII XTrac version software, Open sky)
38sec typical (SSII normal version software, Open sky)
40sec typical (SSII ES version software, Open sky)
35sec typical (SSII XTrac version software, Open sky)
8 sec. typical (SSII normal version software, Open sky)
18 sec. typical (SSII ES version software, Open sky)
4 sec. typical (SSII XTrac version software, Open sky)
0.1sec typical
6
7
8
9
Sensitivity (Cold Start)
Sensitivity (Warm Start)
Cold start
Warm start
10 Hot start
11 Reacquisition
12 Clock drift
≦ 200Hz in 60 sec
13 Clock offset
90000Hz≦Clock offset≦100000Hz
14 Position accuracy
15 Maximum altitude
16 Maximum velocity
17 Trickle power mode
≦25m CEP.
18000 m
514 m/s
Duty cycle ≦ 34%. (Variable)
Default: disable(option: enable)
Continuous operation: 1Hz
It shall freeze the navigation update when speed ≦
2.5 km/hr
18 Update rate
19 Navigation filter
20 Testability
It shall be able to be tested by SiRF test II and single channel
simulator.
22 Protocol setup
23 DGPS
It shall store the protocol setup in the SRAM memory.
1.WAAS, EGNOS
2.RTCM protocol
Interface
24 LNA
On board LNA :
a. Gain ≧14dB
b. N.F. < 2dB
25 I/O Pin
30pin stamp holes
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REB-3300 Operational Manual
Mechanical requirements
26 Weight
≦3.5g
Power consumption
27 Vcc
DC 3.3 ±5%
28 Current
REB3300:
29 Trickle power mode
30 Power down mode current
Average current ≦ 65mA. (IO float)
1. It means that the GPS receiver is in power down mode.
2. Current ≦800μA.
Environment
31 Operating temperature
-40 ~ 85℃
32 Humidity
≦95%
33 Interface Protocol
1. NMEA 0183 ver 3.0, GGA, GSA, RMC and GSV once per
2. SiRF Protocol
3. 4800 bps, 8 data bits, no parity, 1 stop bits
Application Circuit
(1) Ground Planes:
REB-3300 GPS receiver needs two different ground planes. The GND_A pin(11、
12、13、14、15、16、18) shall be connect to analog ground.
The GND pin(2、10、30) connect to digital ground.
(2) Serial Interface:
The Serial interface pin(RXA、TX1、TXB、RXB) is recommended to pull up(10KΩ).
It can increase the stability of serial data.
(3) Backup Battery:
It’s recommended to connect a backup battery to V_BAT.
In order to enable the warm and hot start features of the GPS receiver. If you don’t
intend to use a backup battery, connect this pin to GND or open.
If you use backup battery, shall need to add a bypassing capacitor (10uF) at V_bat
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REB-3300 Operational Manual
trace. It can reduce noise and increase the stability.
(4) Antenna:
Connecting to the antenna has to be routed on the PCB. The transmission line must
to controlled impedance to connect RF_IN to the antenna or antenna connector of
your choice.
(5) Active antenna bias voltage:
The Vcc_RF pin(pin 20) is provide voltage 3.0V. If you use active antenna, you can
connect this pin to V_ANT_IN pin (pin 19) to provide bias voltage of active antenna.
The bias voltage will through RF_IN pin to provide active antenna bias voltage from
Vcc_RF pin.
If your bias voltage of active antenna isn’t 3.0V, you can input bias voltage to
V_ANT_IN pin(pin 19).And input bias voltage of you need. It can open if you use
passive antenna. The input bias voltage will through RF_IN pin to provide active
antenna bias voltage from V_ANT_IN pin.
The maximum power consumption of active antenna is about 100mW
(6) Power:
Connect Vcc pin to DC 3.3V.The power supply must add bypassing capacitor(10uF
and 1uF).It can reduce the Noise from power supply and increase power stability.
Recommended layout PAD
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REB-3300 Operational Manual
GPS Antenna Specification (Recommendation)
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Active patch antenna
Receiving freq. 1575.42 +/-1.032MHz
Polarization RHCP
Output impedance 50 Ohm
2 stage LNA
Connection: surface mounted on main PCB
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REB-3300 Operational Manual
Mechanical Layout
1
2
3
項次
料
號
品
名
備 註
1
2
3
4
1T0SBN25**
1T0SBN26**
PSB*01****
NSB0000A**
SHIELD-RF
SHIELD-LNA
M-PCB REB-3300 V*.*
REB-3300 M-PCB (SMD)
Mechanical requirements
1
REB-3300
Length= 25.4 mm
Width= 25.4 mm
Thickness= 3mm
3.5g
2
Weight
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REB-3300 Operational Manual
Hardware interface
Definition of Pin assignment
Pin # Signal Name
I/O Description
Characteristics
1
VCC
I
DC Supply Voltage
input
DC +3.3V±10%
2
3
GND
Bootselect
G
I
Ground
Boot mode
Digital Reference Ground
VIH ≥ 0.7V *VCC
VIH ≥ 0.7V *VCC
VOH ≥ 2.4V
VIL ≤ 0.3V *VCC
4
5
6
RXA
TXA
TXB
I
Serial port A
Serial port A
Serial port B
Serial port B
VIL ≤ 0.3V *VCC
O
O
I
VOL ≤ 0.4V
VOH ≥ 2.4V
VOL ≤ 0.4V
VIL ≤ 0.3V *VCC
VIL ≤ 0.3V *VCC
VOL ≤ 0.4V
7
8
RXB
VIH ≥ 0.7V *VCC
VIH ≥ 0.7V *VCC
VOH ≥ 2.4V
GPIO3
I/O General –purpose I/O
9
RF_ON
O
Indicates power state
of RF part
VOH = 2.85V
VOL = 0V
10
11
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GND
GND_A
G
G
Digital Ground
Analog Ground
Digital Reference Ground
Analog Reference Ground
16
17
18
19
RF_IN
GND_A
V_ANT_IN
I
G
I
GPS Signal input
Analog Ground
Active Antenna Bias
voltage
50 Ω @1.57542GHz
Analog Reference Ground
Receiving DC power supply for active antenna
bias.
20
21
VCC_RF
V_BAT
O
I
Supply Antenna Bias
voltage
Backup voltage supply
±0.3
VO = 3.0V
DC + 2.6 ~ +3.6V
Current ≤10uA (w/o battery)
VIH > 2.3V VIL < 0.8V
22
23
Reset
GPIO10
I
Reset (Active low)
I/O General purpose I/O
VIH ≥ 0.7V *VCC
VIL ≤ 0.3V *VCC
VOL ≤ 0.4V
VOH ≥ 2.4V
11
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REB-3300 Operational Manual
24
25
26
27
28
GPIO6
GPIO5
GPIO7
GPIO13
GPIO15
I/O General purpose I/O
I/O General purpose I/O
I/O General purpose I/O
I/O General purpose I/O
I/O General purpose I/O
VIH ≥ 0.7V *VCC
VOH ≥ 2.4V
VIL ≤ 0.3V *VCC
VOL ≤ 0.4V
VIH ≥ 0.7V *VCC
VOH ≥ 2.4V
VIL ≤ 0.3V *VCC
VOL ≤ 0.4V
VIH ≥ 0.7V *VCC
VOH ≥ 2.4V
VIL ≤ 0.3V *VCC
VOL ≤ 0.4V
VIH ≥ 0.7V *VCC
VIL ≤ 0.3V *VCC
VOH ≥ 2.4V
VIH ≥ 0.7V *VCC
VOH ≥ 2.4V
VOL ≤ 0.4V
VIL ≤ 0.3V *VCC
VOL ≤ 0.4V
29
30
PPS
O
G
One pulse per second
Digital Ground
VOH ≥ 2.4V
VOL ≤ 0.4V
GND
Digital Reference Ground
Definition of Pin assignment
VCC(+3.3V DC power Input)
This is the main DC power supply input pin. It provides voltage to module.
GND
GND provides the ground for digital part.
Bootselect
Set this pin to high for programming flash.
RXA
This is the main receiver channel and is used to receive software commands to
the board from SIRFdemo software or from user written software.
PS: Pull up if not used.
RXB
This is the auxiliary receiving channel and is used to input differential
corrections to the board to enable DGPS navigation.
PS: Pull up if not used.
TXA
This is the main transmitting channel and is used to output navigation and
measurement data to SiRFdemo or user written software.
TXB
For user’s application (not currently used).
RF_ON
This pin indicates state of RF voltage.
RF_IN
This pin receiver signal of GPS analog .due to the RF characteristics of the
signal the design has to certain criteria. The line on the PCB from the
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antenna(or antenna connector) has to be a controlled impedance line
(Microstrip at 50Ω).
V_ANT_IN
This pin is reserved an external DC power supply for active antenna.
If using 3.0V active antenna, pin 19 has to be connected to pin 20.
If using 3.3V or 12V active antenna ,this pin has to be connected to 3.3V or 5V
power supply.
VCC_RF
This pin provides DC voltage 3.0 for active antenna.
Reset
This pin provides an active-low reset input to the board. It causes the board to
reset and start searching for satellites. If not utilized, it may be left open.
PPS
This pin provides one pulse-per-second output from the board, which is
synchronized to GPS time. This is not available in Trickle Power mode.
Backup battery (V_BAT)
This is the battery backup input that powers the SRAM and RTC when main
power is removed. Typical current draw is 10uA.
Without an external backup battery or super cap, the TMP will execute a cold
start after every power on. To achieve the faster start-up offered by a hot or
warm start, either a battery backup must be connected or a super cap installed.
To maximize battery lifetime, the battery voltage should not exceed the supply
voltage and should be between 2.5V and 3.6V.
With the super cap (B1) installed, and after at least ten minutes of continuous
operation, the data retention is about seven hours.
Note that even though all other components are rated at –40 to +85 deg C , a
typical super cap is specified over a temperature range of –25 to +70 deg C and
a typical rechargeable Lithium battery is over –20 to +70 deg C.
GPIO Functions
Several I/Os are connected to the digital interface connector for custom
applications.
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Test Software Specification
No
1
Function
Clock offset
Specification
88000Hz≦VAL≦104000Hz
VAL≦200Hz
2
Clock Drift
3
C/No Hi Power Mean
C/No Hi Power Sigma
Bit Sync
VAL≧38dB
4
VAL≦2dB
5
VAL≦5 Sec
6
Frame Sync
VAL≦28 Sec
VAL≦0.22°
7
Phase Error
14
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Software Interface
NMEA V3.0 Protocol
Its output signal level is TTL: 4800 bps (default), 8 bit data, 1 stop bit and no parity. It supports
the following NMEA-0183
Messages: GGA, GLL, GSA, GSV, RMC and VTG.
NMEA Output Messages: the Engine board outputs the following messages as shown in Table
1:
Table 1 NMEA-0183 Output Messages
NMEA Record
GGA
Description
Global positioning system fixed data
Geographic position – latitude / longitude
GNSS DOP and active satellites
GLL
GSA
GSV
GNSS satellites in view
RMC
Recommended minimum specific GNSS data
Course over ground and ground speed
VTG
GGA-Global Positioning System Fixed Data
Table 2 contains the values of the following example:
$GPGGA, 161229.487, 3723.2475, N, 12158.3416, W, 1, 07, 1.0, 9.0, M, , , ,0000*18
Table 2 GGA Data Format
Name
Message ID
Example
Units
Description
GGA protocol header
hhmmss.sss
$GPGGA
UTC Position
Latitude
161229.487
3723.2475
ddmm.mmmm
N/S Indicator
Longitude
N
N=north or S=south
Dddmm.mmmm
12158.3416
E/W Indicator
Position Fix Indicator
Satellites Used
HDOP
W
1
E=east or W=west
See Table 2-1
07
1.0
9.0
Range 0 to 12
Horizontal Dilution of Precision
MSL Altitude
meters
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Units
M
M
meters
Geoid Separation
Units
meters
meters
Age of Diff. Corr.
second Null fields when DGPS is not
used
Diff. Ref. Station ID
Checksum
0000
*18
＜CR＞＜LF＞
End of message termination
Table 3 Position Fix Indicator
Value
Description
0
1
2
3
Fix not available or invalid
GPS SPS Mode, fix valid
Differential GPS, SPS Mode, fix valid
GPS PPS Mode, fix valid
GLL-Geographic Position –Latitude/Longitude
Table 3 contains the values of the following
Example: $GPGLL, 3723.2475, N, 12158.3416, W, 161229.487, A*2C
Table 3 GLL Data Format
Name
Message ID
Latitude
Example
$GPGLL
3723.2475
N
Units
Description
GLL protocol header
ddmm.mmmm
N/S Indicator
Longitude
N=north or S=south
Dddmm.mmmm
12158.3416
W
E/W Indicator
UTC Position
Status
E=east or W=west
hhmmss.ss
161229.487
A
A=data valid or V=data not valid
Checksum
＜CR＞＜LF＞
*2C
End of message termination
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GSA-GNSS DOP and Active Satellites
Table 4 contains the values of the following example:
$GPGSA, A, 3, 07, 02, 26, 27, 09, 04, 15, , , , , , 1.8,1.0,1.5*33
Table 4 GSA Data Format
Name
Message ID
Mode 1
Example
Units
Description
GSA protocol header
$GPGSA
A
3
See Table 4-2
Mode 2
See Table 4-1
Satellite Used
Satellite Used
….
07
02
Sv on Channel 1
Sv on Channel 2
….
Satellite Used
PDOP
Sv on Channel 12
Position Dilution of Precision
Horizontal Dilution of Precision
Vertical Dilution of Precision
1.8
1.0
1.5
*33
HDOP
VDOP
Checksum
＜CR＞＜LF＞
End of message termination
Table 4-1 Mode 1
Value
Description
1
2
3
Fix not available
2D
3D
Table 4-2 Mode 2
Value
Description
M
A
Manual-forced to operate in 2D or 3D mode
Automatic-allowed to automatically switch 2D/3D
GSV-GNSS Satellites in View
Table 5 contains the values of the following example:
$GPGSV, 2, 1, 07, 07, 79, 048, 42, 02, 51, 062, 43, 26, 36, 256, 42, 27, 27, 138,
42*71$GPGSV, 2, 2, 07, 09, 23, 313, 42, 04, 19, 159, 41, 15, 12, 041, 42*41
17
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Table 5 GGA Data Format
Name
Message ID
Number of
Example
Units
Description
GSV protocol header
$GPGSV
2
Range 1 to 3
Messages1
Messages Number1
Satellites in View
Satellite ID
1
07
07
79
048
42
Range 1 to 3
Channel 1(Range 1 to 32)
Elevation
degrees Channel 1(Maximum 90)
degrees Channel 1(True, Range 0 to 359)
dBHz Range 0 to 99, null when not
tracking
Azimuth
SNR (C/No)
….
….
Satellite ID
Elevation
Azimuth
SNR (C/No)
27
27
Channel 4(Range 1 to 32)
degrees Channel 4(Maximum 90)
degrees Channel 4(True, Range 0 to 359)
dBHz Range 0 to 99, null when not
tracking
138
42
Checksum
*71
＜CR＞＜LF＞
End of message termination
1Depending on the number of satellites tracked multiple messages of GSV data may be required.
RMC-Recommended Minimum Specific GNSS Data
Table 6 contains the values of the following example:
$GPRMC, 161229.487, A, 3723.2475, N, 12158.3416, W, 0.13, 309.62, 120598, ,*10
Table 6 GGA Data Format
Name
Message ID
UTC Position
Status
Example
$GPRMC
161229.487
A
Units
Description
RMC protocol header
hhmmss.sss
A=data valid or V=data not valid
ddmm.mmmm
Latitude
3723.2475
N
N/S Indicator
Longitude
N=north or S=south
dddmm.mmmm
12158.3416
W
E/W Indicator
Speed Over Ground
E=east or W=west
0.13
knots
18
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Course Over
Ground
309.62
120598
*10
degrees True
Date
ddmmyy
Magnetic Variation
Checksum
＜CR＞＜LF＞
degrees E=east or W=west
End of message termination
VTG-Course Over Ground and Ground Speed
Table 7 contains the values of the following example:
$GPVTG, 309.62, T, , M, 0.13, N, 0.2, K*6E
Table 7 VTG Data Format
Name
Message ID
Course
Example
Units
Description
VTG protocol header
$GPVTG
309.62
T
degrees Measured heading
True
Reference
Course
degrees Measured heading
Magnetic
Reference
Speed
M
0.13
N
knots Measured horizontal speed
Knots
Units
Speed
0.2
K
km/hr Measured horizontal speed
Kilometer per hour
Units
Checksum
＜CR＞＜LF＞
*6E
End of message termination
19
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RoyalTek
GPS Receiver User’s Tip
1. GPS signal will be affected by weather and environment conditions, thus suggest to use the
GPS receiver under less shielding environments to ensure GPS receiver has better receiving
performance.
2. When GPS receiver is moving, it will prolong the time to fix the position, so suggest to wait for
the satellite signals to be locked at a fixed point when first power-on the GPS receiver to
ensure to lock the GPS signal at the shortest time.
3. The following situation will affect the GPS receiving performance:
a. Solar control filmed windows.
b. Metal shielded, such as umbrella, or in vehicle.
c. Among high buildings.
d. Under bridges or tunnels.
e. Under high voltage cables or near by radio wave sources, such as mobile phone base
stations.
f. Bad or heavy cloudy weather.
4. If the satellite signals can not be locked or encounter receiving problem (while in the urban
area), the following steps are suggested:
a. Please plug the external active antenna into GPS receiver and put the antenna on
outdoor or the roof of the vehicle for better receiving performance.
b. Move to another open space or reposition GPS receiver toward the direction with less
blockage.
c. Move the GPS receiver away from the interferences resources.
d. Wait until the weather condition is improved.
5. While a GPS with a backup battery, the GPS receiver can fix a position immediately at next
power-on if the build-in backup battery is full-recharged.
Copyright © 2004, RoyalTek Company Ltd.
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RoyalTek
MTBP Estimation
MTBF > 10000 hours
Package Specification and Order Information
Shipment Method: Tape and reel
Protocol
S/W Version
Package
3
1
REB-3300 0. Standard
1.ES
2
label
0. Customize
0. Standard
1. GGA,GSA,GSV(5),RMC,4800
2.XTRAC
3. GGA,GSA,GSV(5),RMC,57600
4. RMC,9600
Contact Information Section
Contact : [email protected]
Headquarter:
Address: 8F, 256 Yang Guang Street, Neihu Chiu, Taipei, Taiwan, R.O.C.
Tel: 886-2-77215000
Fax: 886-277215666
Revision History
Copyright © 2004, RoyalTek Company Ltd.
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REB-3300 Operational Manual
RoyalTek
Title
REB-3300 GPS Receiver Module
Doc Type User Manual
Revision
Number
0.1
Date
7.Sep 2004
Author
Ben
Change notice
Initial version
0.5
1.0
15 Oct 2004
24 Nov 2004
Ben
Ben
First release
Application circuit, package antenna specification
Copyright © 2004, RoyalTek Company Ltd.
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