This paper presents a formula for predicting the frequency of oscillation of a cross-coupled voltage-controlled oscillator (VCO). The VCO was implemented in a CMOS 0.13μm technology. The calculated frequency of operation shows a close agreement with the simulated results. The VCO operates at 10GHz and consumes 490μW from a 1V supply. The simulated phase noise at a 1MHz offset is -114.4dBc/Hz resulting in a figure of merit (FOM) of -197.6dB. The VCO can cover a 748MHz frequency range and occupies 0.096mm2 of chip area. The simulated sensitivity of the frequency of operation and peak-to-peak amplitude due to temperature is 4.58MHz/°C and 3.6mV/°C, respectively. The sensitivity of the frequency of operation and peak-to-peak amplitude due to power supply is 1.1GHz/V and 1.82V/V, respectively.

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doi.org/10.1109/MWSCAS.2007.4488634
2007 50th Midwest Symposium on Circuits and Systems, MWSCAS - Conference
Department of Electronics

Milicevic, S. (Sinisa), & MacEachern, L. (2007). Frequency of oscillation of a cross-coupled CMOS VCO with resistor tail biasing. Presented at the 2007 50th Midwest Symposium on Circuits and Systems, MWSCAS - Conference. doi:10.1109/MWSCAS.2007.4488634