A 0.6 V l .6 mW fully integrated voltage-controlled oscillator in 90 nm CMOS aiming for the GPS LI band

Abstract

A fully integrated 0.6 V 2.6 mA VCO aimed for the GPS L1 band is realized in a 90 nm CMOS process. The VCO operates at 6.3 GHz and a divide-by-four circuit buffer provide the wanted 1575.42 MHz signal. The VCO has a measured phase noise of-103 dBc/Hz at 100kHz offset and a chip area of 1.15mm 2, including bondpads