7F-2, No. 1213, Zhongzheng Road,New Taipei,Zhonghe Dist,Taiwan
Performance
-Highest performance GPS PVT engine
-High acquisition sensitivity for fast TTFF
-Extremely low weak signal tracking sensitivity
-High jamming immunity
-Smallest footprint and total solution size
-Highest level of BOM integration
-Value added software enhancements
-Multimode A-GPS (Autonomous, MS-Based, and MS-Assisted) Need operator support
-Embedded CGEE / SGEE (Need server support)
-SiRFGeoRecovTM Reverse EE
-Cold/Warm/Hot Start Time: 35/35/1 sec. at open sky and stationary environments.
-Reacquisition Time: 0.1 second
-RF Metal Shield for best performance in noisy environments
Advantages
-Built-in LNA.
-Embed CGEE (Client Generated Extended Ephemeris) that can capture ephemeris data from satellites locally and predicts ephemeris out to 3 days. So if the module was off within 3 days, it could complete positioning process within 2 seconds just like hot start.
-It can remove in-band jammer up to 80db-Hz and track up to 8CW jammers, so the module can prevent GPS signal interference when design-in the electrical device with noisy electrical signal interferences such as Laptop, mobile phone, DSC, etc.
-Maintain tracking sensitivity as low as -163dBm, even without network assistance. (SiRF StarIII has only -159dBm sensitivity)
-Support SiRFaware technology
- Support adaptive Micro Power Controller power management mode
-Support MEMS sensor through I2C interface
-Only 8mW Trickle Power, so user can leave power on all day instead of power off
-Suitable for battery drive devices that need lower power consumption application
-Ideal for high volume mass production(Taping reel package)
-Cost saving through elimination of RF and board to board digital connectors
-Flexible and cost effective hardware design for different application needs
specifications
Feature |
Item |
Description |
Chipset |
GSD4e |
SiRF StarIV low power single chipset |
General |
Frequency |
L1, 1575.42 MHz |
C/A code |
1.023 MHz chip rate |
|
Channels |
48 |
|
Accuracy |
Position |
10 meters, 2D RMS |
<5 meters 2D RMS, WAAS corrected |
||
Velocity |
0.1 meters/second |
|
Time |
1 microsecond synchronized to GPS time |
|
Datum |
Default |
WGS-84 |
Other |
selectable for other Datum |
|
Time to First Fix (TTFF) (Open Sky & Stationary Requirements) |
Reacquisition |
0.1 sec., average |
Snap start |
1 sec., average |
|
Hot start |
1 sec., average typical TTFF |
|
Warm start |
35 sec., average typical TTFF |
|
Cold start |
35 sec., average typical TTFF |
|
Dynamic Conditions |
Altitude |
18,000 meters (60,000 feet) max. |
Velocity |
515 meters/second (1000 knots) max. |
|
Acceleration |
4g, max. |
|
Jerk |
20 meters/second3, max. |
|
Power |
Main power |
2.8 ~ 5.0 VDC |
Power consumption |
56 mW |
|
Supply Current |
26 mA |
|
Trickle Power |
8mW |
|
Backup Power |
2.8 ~ 5.0 VDC |
|
Serial Port |
Electrical interface |
One full duplex serial TTL interface |
Protocol messages |
NMEA-0183@4800 bps (Default) |