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High performance 1 V 2.4 GHz CMOS VCO

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Author

Summary, in English

A low phase noise 2.4 GHz voltage controlled oscillator (VCO) with 1 V supply is presented. The VCO is based on the differential negative resistance oscillator with the tail current source replaced by an inductor. The inductor both improves the noise factor of the oscillator and enables maximum voltage swing over the tank. The amplitude limitation which is usually set by the tail current source is instead performed by an amplitude control loop adjusting the gate bias voltage. The oscillator measures a tuning range of 15%, a power consumption of 5.5 mW, and a phase noise of -136 dBc/Hz at 3 MHz offset from the carrier frequency for a 1 V supply

Publishing year

2002

Language

English

Pages

185-188

Publication/Series

2002 IEEE Asia-Pacific Conference on ASIC. Proceedings (Cat. No.02EX547)

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • voltage controlled oscillator
  • differential negative resistance oscillator
  • source inductor
  • oscillator noise factor
  • gate bias voltage adjustment
  • amplitude control loop
  • low phase noise VCO
  • CMOS VCO
  • 2.4 GHz
  • 5.5 mW
  • tuning range
  • 1 V

Conference name

2002 IEEE Asia-Pacific Conference on ASIC. Proceedings

Conference date

2002-08-06 - 2002-08-08

Conference place

Taipei, Taiwan

Status

Published

ISBN/ISSN/Other

  • ISBN: 0-7803-7363-4