A low spurious 14.4mW 1.8GHz CMOS FVC-based clock generator for portable SoC processors

Abstract

A 60 MHz to 1.8 GHz frequency-to-voltage converter (FVC)-based clock generator is fabricated in a 0.18-mum CMOS process for portable SoC processors. The clock generator employs the FVC and a VCO to reduce power and jitter simultaneously, which achieves spurious tone of -54.1 dBc, rms jitter of 1.497 ps and peak-to-peak jitter of 14.4 mW at 1.8 V supply.