SiRFstarIII™ GSC3e/LPx & GSC3f/LPx
For PNDs and Telematics
Description
SiRFstarIII GSC3e/LPx and GSC3f/LPx are the pin-for-pin compatible, lowest power versions of the advanced GSC3e(f)/LP receiver in a single package. The baseband has been ported to 65 nm technology, enabling an additional power reduction of up to 30 percent. In GSC3e/LPx, the baseband and RF are integrated into the 7 mm x 10 mm x 1.4 mm package. In GSC3f/LPx, flash memory is included in the package making for an extremely compact design. GSC3e(f)/LPx includes a powerful GPS DSP integrated with an ARM7TDMI microprocessor and 1 Mb of SRAM. GSC3e(f)/LPx architecture uses an FFT and Matched Filter that delivers performance equivalent to more than 200,000 correlators. This represents a quantum leap forward in GPS performance.
Key features
- Next generation, low power GPS performance
- SiRFLocTM client A-GPS support
- GSW3—modular software support
Benefits
- Supporting multiple reference frequencies, GSC3e(f)/LPx RF section is a highly integrated RF implementation
- The GSC3e/LPx’s flash option, the GSC3f/LPx, has an integrated 4-megabit flash memory, eliminating the need for an external flash component and significantly simplifying the routing associated with integrating a GPS receiver into a board design
- GSC3e(f)/LPx is supported by standard autonomous software that supports SiRFInstantFix technology, which eliminates the initial task of obtaining broadcast GPS data from the satellites themselves, resulting in a faster Time To First Fix (TTFF), even in weak signal environments
- GSC3e(f)/LPx supports SiRFLoc Client, the patented Multimode A-GPS software powering mobile phones optimised for location-enabled-services. SiRFLoc improves GPS location capability in wireless system environments by utilising various modes of wireless infrastructure assistance to improve weak signal reception. Additionally, the GSC3e(f)/LPx supports SiRFDRive dead reckoning technology for enhanced positioning accuracy and availability
GPS Architecture Highlights
- 200,000+ effective correlators for very fast TTFF and high sensitivity acquisition
- 20-channel architecture
- Low 100 ms interrupt load on microprocessor
- High sensitivity for indoor fixes
- SBAS (WAAS, MSAS, EGNOS) support
Supported Software
Standard
- GSW3 GPS software (API compatible with GSW2)
Premium
- SiRFInstantFixII™ extended ephemeris software, no connectivity required
- SiRFInstantFix™ extended ephemeris service for connected devices
- SiRFLoc® Client A-GPS Multimode Location Engine™ for GSM/3GPP
Product details
Horizontal Position Accuracy1
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Next Generation, Lowest Power, GPS Performance
SiRFLocTM Client A-GPS Support
GSW3—Modular Software Support
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Footnotes:
- 50% 24 hr static, -130 dBm
- 50% @ 30 m/s
- 50% -130 dBm Fu 0.5 ppm Tu ±2 s Pu 30 Km
- Average, TricklePower 200:1
Subject to approval, a datasheet can be made available for this product via CSR Support.