A class-C CMOS harmonic VCO is presented. The oscillation amplitude is maximized by the active devices operating in class-C, while the bias current noise is naturally rejected by the topology. Drawing 1.4mA from a 1V power supply, the 0.13um CMOS prototype displays an average phase noise of -130dBc/Hz @ 3MHz over the 4.90-5.65GHz tuning range, for a figure-of-merit of 194.5dBc/Hz.
A 1.4mW 4.90-to-5.65GHz Class C CMOS VCO with an Average FoM of 194.5dBc/Hz / Mazzanti, Andrea; P., Andreani. - STAMPA. - 51:(2008), pp. 474-476. (Intervento presentato al convegno 2008 IEEE International Solid State Circuits Conference, ISSCC tenutosi a San Francisco, CA, usa nel Febbraio 2008) [10.1109/ISSCC.2008.4523263].
A 1.4mW 4.90-to-5.65GHz Class C CMOS VCO with an Average FoM of 194.5dBc/Hz
MAZZANTI, Andrea;
2008
Abstract
A class-C CMOS harmonic VCO is presented. The oscillation amplitude is maximized by the active devices operating in class-C, while the bias current noise is naturally rejected by the topology. Drawing 1.4mA from a 1V power supply, the 0.13um CMOS prototype displays an average phase noise of -130dBc/Hz @ 3MHz over the 4.90-5.65GHz tuning range, for a figure-of-merit of 194.5dBc/Hz.
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