Hwgps data sheet

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SiRFstarIIe/LP Chip Set
A Low Power GPS Chip Set for Consumer Products
SiRF Chips and Software

Industry Leading GPS Performance
Builds on high performance SiRFstarIIe Architecture supports user task integration Signal acquisition using 1920 time/frequency search channels SBAS (WAAS and EGNOS), and DGPS support Multipath-mitigation hardware Cold Start under 45 seconds

GSP2e/LP - Flexible Digital IC
Microprocessor throughput measured at up to 40 MIPS 8k of cache for improved throughput On-chip 1Mb SRAM for GPS navigation Integrated high-precision Real-Time Clock Extensive GPS receiver peripherals 2 UARTS, high speed serial bus, battery backed SRAM, >40 GPIO,
Low Power
Under 175 mW at full power TricklePowerTM mode reduces power to under 60 mW Adaptive TricklePower intelligently switches between full and TricklePower. Push to fix reduces power by as much as 98%
GRF2i/LP - Low Power RFIC
On-chip VCO and reference oscillator Integrated LNA Uses less than 30 mA's of current Simplified digital interface
Maximizes GPS Position Availability
SingleSatTM updates in reduced visibility Superior urban canyon performance FoliageLockTM for weak signal tracking

GSW2 Modular Software
Easily integrated into existing systems 95% CPU throughput available for user tasks Tunable performance in all applications Robust development environment Compatible with SiRFloc and SiRFXtrac


SiRFstarIIe/LP architecture sets the standard for high volume GPS performance. The SiRFstarIIe/LP still uses 1,920 corrolators and 12 channels to provide fast acquisition and reaquisition times, while keeping peak current to under 65 mA. TricklePower extends battery life even further by reducing average current to under 20mA. Now superior performance features like SingleSat, SnapLock, and FoliageLock are available using less power. The chipset consists of the GSP2e/LP, a highly integrated digital chip with 40 MIPS of processing power and the GRF2i/LP, a lower power version of the GRF2i integrated front end. The GSW2 software completes the package providing flexible system architechture for standalone GPS based products. The SiRFstarIIe/LP also supports SiRF's high sensitivity stand alone software, SiRFXtrac and mult-mode software,SiRFLoc. When low power, low cost, and high performance matter SiRFstarIIe/LP is the best solution.

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