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2010/8/2
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GLOBALSAT GPS Engine Board
Hardware Data Sheet
Product No : EB-5531
Version 0.1
Globalsat Technology Corporation
16F., No. 186, Jian-Yi Road, Chung-Ho City, Taipei
Hsien 235, Taiwan
Tel: 886-2-8226-3799 Fax: 886-2-8226-3899
E-mail : service@globalsat.com.tw
Website: www.globalsat.com.tw
Issue Date
2010/08/02
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EB-5531
High Performance GPS Engine Board
2010/8/2
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Product Description
Product Description
EB-5531 is a compact, high performance, and low power consumption GPS engine board. It uses
SiRF IV GSD4e chipset which can track satellites up to 48 track verification channels at a time and
perform fast TTFF in weak signal environments. EB-5531 is suitable for the following applications:
Automotive navigation
Personal positioning
Fleet management
Mobile phone navigation
Marine navigation
Product Features
SiRF IV GSD4e high performance GPS Chipset
Very high sensitivity (Tracking Sensitivity: -163 dBm)
Extremely fast TTFF (Time To First Fix) at low signal level
ONE serial ports
16Mb flash
Built-in LNA
Compact size (15mm * 13 mm * 2.4mm) suitable for space-sensitive application
One size component, easy to mount on another PCB board
Support NMEA 0183 V2.3 (GGA, GSA, GSV, RMC, VTG, GLL, ZDA)
Support SiRF binary protocol
Product Pin Description
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EB-5531
High Performance GPS Engine Board
2010/8/2
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PIN Number(s)
Name
Type
Description
Note
1
RXB
I
Serial input (default null)
1
2
TXB
O
Serial output (default null)
3
TIMEMARK
O
One pulse per second output.(1PPS)
2,3
4
TXA
O
This is the main transmits channel for
outputting navigation and measurement data
to user’s navigation software or user written
software. Output TTL level, 0V ~ 2.85V.
5
RXA
I
This is the main receive channel for receiving
software commands to the engine board from
SiRFdemo software or from user written
software.
1
6
NC
NC
7,8,13,14,15
GPIOs
I/O
General purpose I/O
1,3
9
RF_PWR
CTR
RF Power ON/OFF.
10
ON_OFF
I
Edge triggered soft on/off request. It must be
low for normal application.
11
VBAT
P
Backup battery supply voltage
12
VCC
P
Main power supply to the engine board.
16
BOOTSEL
I
Set this pin to high for programming flash.
2
17
VCC_RF
PWR
Regulated RF power output.
19
RF IN
RF
GPS antenna input
18,20,21,22
GND
P
Ground.
<Note>
1. Internal pull-up resistor (100KΩ nominal).
2. Internal pull-down resistor (100KΩ nominal).
3. Default input at reset.
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EB-5531
High Performance GPS Engine Board
2010/8/2
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Parameter
Min.
Typ.
Max.
Conditions
Unit
POWER Supply
Main power supply
3.1
3.3
3.5
V Backup battery supply
2.0
3.5
V Main power supply Current
23
25
27
mA
Backup battery supply Current
4.5
5
5.5
uA
Interface (VCC = 3.3V, VBAT= 3.3V, Operation Temp.= 25℃)
High Level input Voltage
0.7*VDD
3.5
V Low Level input Voltage
-0.3
0.3*VDD
V
High Level input Current
-10 10
60
(V=2.85V)
(with Pull Low)
uA
Low Level input Current
-10 10
-60
(V=0V)
(with Pull High)
uA
High Level output Voltage
0.75*VDD
V Low Level output Voltage
0.25*VDD
V RF Input
Input Impedance
50
Ω Operating Frequency
1.575
Ghz
Electrical Specification
Absolute Maximums Ratings
☆VDD is 3.3V for SiRF IV GSD4e CHIP
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EB-5531
High Performance GPS Engine Board
2010/8/2
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Sensitivity
Tracking :
Autonomous acquisition :
-163dBm
-160 dBm
Time-To-First-Fix
Cold Start – Autonomous
Warm Start – Autonomous
Hot Start – Autonomous
< AVG 35s
< 35s
< 1s
Horizontal Position Accuracy
Autonomous
< 2.5m
Velocity Accuracy
Speed
Heading
< 0.01 m/s
< 0.01 degrees
Reacquisition
0.1 second, average
Max Update Rate
1 Hz
Maximum Altitude
< 18,000 meter
Maximum Velocity
< 515 meter/ second
Maximum Acceleration
< 4G
Parameter
Min
Typ
Max
Unit
Humidity Range
5 95
% non-condensing
Operation Temperature
-40
25
85
℃
Storage Temperature
-40
85
℃
Type
20-pin stamp holes
Dimensions
15 mm * 13 mm * 2.4 mm ±0.2mm
2
3
1
4
5
Receiver Performance
<Note>
1.50% -130dBm Fu 0.5ppm Tu ±2s Pu 30Km
2.Commanded Warm START
3.Commanded Hot START
4. 50% 24hr static, -130dBm
5. 50% @ 30m/s
Environmental Characteristics
Physical Characteristic
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