PT9120

The PT9120 is a single chip Global Positioning System (GPS) receiver front-end IC requiring few external components and offering extremely low power consumption. The PT9120 employs a super-heterodyne receiver topology which down-converts the 1575.42MHz L1-band GPS signal to a 1st IF. The 1st IF is then filtered by an off-chip L-C filter and subsequently sub-sampled by the 2-bit A/D converter to provide both sign and magnitude quantized CMOS level outputs to base band inputs.