Low-power, low-phase-noise CMOS voltage-controlled-oscillator with integrated LC resonator

Integrated low-power, low-phase-noise voltage-controlled oscillators (VCOs) have been designed using a 0.5 /spl mu/m CMOS technology with three metal layers. The achieved phase noise is as low as -110 dBc/Hz at an offset frequency of 200 kHz, at a power consumption of only 6.6 mW with a 3.3 V power supply. The tuning range is as large as 14%.