Abstract
A low-voltage differential voltage-controlled oscillator (VCO) is designed and implemented in a 90-nm CMOS 1P9M process.The designed circuit topology is an nMOS-core cross-coupled LC-tank VCO robust to process, voltage and temperature variation. At the supply voltage of 0.4 V, the output phase noise of the VCO is −108.78 dBc/Hz at 1-MHz offset frequency from the carrier frequency of 10.13 GHz, and the figure of merit is −187.68 dBc/Hz. The power consumption is 1.32 mW. Tuning range is about 3.62 GHz, from 9.15 to 12.77 GHz, while the control voltage was tuned from 0 to 1.0 V. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:517–519, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25775
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