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

A 60MHz to 1.8GHz frequency-to-voltage converter (FVC)-based clock generator is fabricated in a 0.18-μm 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 −54.1dBc, rms jitter of 1.497ps and peak-to-peak jitter of 11.6ps with maximum power consumption of 14.4mW at 1.8V supply.