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The phase noise analysis in colpitts VCO implemented by CMOS technology

Wah Ching Lee, Kai Xuan, K. F. Tsang, X. F. Guo

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

A Colpitts voltage controlled oscillator (VCO) is designed and fabricated by 0.18μm CMOS technology. The linear time variant (LTV) model was used to analyze the phase noise. Under a supply voltage of 1.8 V, the frequency range of the VCO covers 340 ~ 400 MHz, the phase noise is -90dBc/Hz at 10 kHz offset, and the output power is -2.5dBm. The phase noise testing results are consistent with the theoretical calculating results. The chip size is 570μmx300μm. ©2009 IEEE.
Original languageEnglish
Title of host publicationICICS 2009 - Conference Proceedings of the 7th International Conference on Information, Communications and Signal Processing
DOIs
Publication statusPublished - 2009
Event7th International Conference on Information, Communications and Signal Processing, ICICS 2009 - Macau Fisherman's Wharf, Macao, China
Duration: 8 Dec 200910 Dec 2009

Conference

Conference7th International Conference on Information, Communications and Signal Processing, ICICS 2009
PlaceMacao, China
CityMacau Fisherman's Wharf
Period8/12/0910/12/09

Research Keywords

  • CMOS
  • Colpitts
  • Phase noise
  • VCO

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