CSR has added an on-chip CPU to its GPS chipset platform, the SiRFstarIV.
The GSD4e is designed for use as an always-on GPS platform which is used in geo-tagging applications such as digital cameras.
CSR believes that the increased on-chip data processing capability will support improved location-aware geo-tagging applications as well as new features in mobile handsets.
One feature is support for multiple mobile operating systems.
The GSD4e can navigate to -160 dBm and track to -163 dBm, and for smartphones has tehpotential to offer 7.5-dB 3GPP pass margin and high E911 sensitivity.
It also offers a fully certified A-GPS protocol stack with drop-in to multiple smartphone operating systems.
Power consumption is 8mW in 1-Hz TricklePower mode.
The chip is available as a ROM version and with flash support to take advantage of the increased processing performance.
The GSD4e combines RF receiver and integrated LNA, baseband circuitry, switcher and low-current LDOs on a single chip, and requires only five to six external passive components and a single SAW to provide a complete solution that occupies less than 25 square millimeters, including switcher parts.