SiRF 3i+ RFchip Datasheet

PDSH0031_1055-1052GRF3i+ GPS Architecture Multi-purpose, Low Power GPS RF ARCHITECTURE HIGHLIGHTS
Compatible with Multiple SiRF Products Compatible with SiRFstarII IP , SiRFstarIII IP , and SiRFsoft
Compatible with SiRFatlas, SiRFtitan, and SiRFprima SoCs

PRODUCT HIGHLIGHTS
Designed for Flexibility and High Levels of Integration SiRF Baseband Engine Mode: 2-bit sampling at 16 f0
SiRFsoft Engine Mode: 1- or 2-bit sampling at a 4, 8, or 16 f0 SiRF SoC Mode (SiRFatlas, SiRFtitan, and SiRFprima): 2-bit sampling at 16 f0 Integrated dual bandwidth IF filter Integrated VCO and Loop Filter Integrated LDO Integrated RTC oscillator and monitor Separate main and I/O power supply pins Supports a wide range of external references between 13 MHz and 38.4 MHz using Frac-N 14 mA current consumption with 11 mA