UC Irvine

A 53-61GHz low-power charge-pump PLL is presented. This integer-N type-II PLL employs a class-D V-band VCO, a divide-by-1024 chain. The first divider in the chain is an inductor-less divide-by-4 injection-locked frequency divider (ILFD). The proposed PLL is fabricated in a standard 65nm CMOS process. The PLL achieves a tuning range of 13% from 53.35GHz to 60.83GHz and a phase-noise of -85.23dBc/Hz at 1MHz offset, while consuming a minimum DC power of 50.8mW. This PLL can be used as part of the LO generation network for millimeter-wave phased-array transceivers.