A 90nm CMOS single-chip GPS receiver with 5dBm out-of-band IIP3 2.0dB NF

Abstract

A single-chip GPS receiver with a low-IF heterodyne RF front-end includes a LNA, image-reject IQ mixers, a passive poly-phase filter, and a fully integrated synthesizer. The IF-strip consists of a jammer-reject filter, a VGA, a /spl Delta//spl Sigma/ ADC, and a digital IF-filter. The receiver dissipates 60 mA at 1.4 V and achieves a NF of 2 dB and out-of-band IIP3 of 5 dBm.