Features:
- SiRF StarIV ultra low power chipset
- Support 48-channel GPS
- Compact module size for easy integration: 20 x 20 x 7.0 mm
- UART/I2C/SPI pins reserved for customizing special user applications
- Fully utilized SS4 upgrade features

- PDA, MID, and other portable devices

- Car and Marine Navigation

- Fleet Management / Asset Tracking

- AVL and Location-Based Services

- Hand-Held Device for Personal Positioning and Navigation

 

- Highest performance GPS PVT engine

- High acquisition sensitivity for fast TTFF

- Extremely low weak signal tracking sensitivity

- Highest integration with small and compact from factor

- Value added software enhancements
- Multimode A-GPS (Autonomous, MS-Based, and MS-Assisted) with operator support
- Embedded CGEE / SGEE (with back-end server support) speed up TTFF a lot and makes cold start time to be around 20+ seconds.
- SiRFGeoRecovTM Reverse EE makes positioning process being done under power saving mode.
- RF Metal Shield for best performance in noisy environments

 

Interface
- Multiple host interfaces (UART, I2C, and SPI)
- Secondary I2C port for MEMS connection

- Protocol: NMEA-0183

 

- 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 with limited time 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.
- Tracking sensitivity as low as -163dBm, even without network assistance. (SiRF - StarIII has only -159dBm sensitivity)

- Support SiRF Aware technology
- Support adaptive " Micro Power Controller" power management mode

- Support MEMS sensor through I2C interface

- MEMS interrupt can improve Micro Power Mode performance.
- Only 8mW Trickle Power, so user can leave power on all day instead of power off
- SBAS Ranging: SBAS satellite measurements will be used un the navigation solution for improved DOP and coverage. (firmware V4.1.0 or later will be support)
- Suitable for battery drive devices that need lower power consumption application
- Cost saving through elimination of RF and board to board digital connectors
- Flexible and cost effective hardware design for different application needs

 

Feature	Item	Description
Chipset	GSD4e	SiRF StarIV core logic
General	Frequency	L1, 1575.42 MHz
	C/A code	1.023 MHz chip rate
	Channels	48
Accuracy	Position	<2.5 meters
	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 -122dBm) (Open Sky & Stationary Requirements)	Reacquisition	0.1 sec., average
	Snap start	1 sec., average
	Hot start	1~2 sec.
	Warm start	9~15 sec.
	Cold start	28~35 sec.
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 input	1.71 ~ 1.89 VDC input
	Power consumption	62 mW (Tracking Mode)
	Backup Power	1.71 ~ 1.89 VDC battery input
Serial Port	Electrical interface	UART/I2C/SPI
	Protocol messages	NMEA-0183
Antenna	Patch Antenna	20*20*4mm Gain 4.5 dBic Max* (@ Zenith) Polarization Right Hand Circular Polarization Bandwidth 10 MHz Min* (@ 10dB) Axis Ratio ≦ 3dB* * Based on ground size 60* 60 mm2 size