The phase noise analysis in colpitts VCO implemented by CMOS technology

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

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-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.
Original languageEnglish
Title of host publicationICICS 2009 - Conference Proceedings of the 7th International Conference on Information, Communications and Signal Processing
DOIs
Publication statusPublished - 1 Dec 2009
Event7th International Conference on Information, Communications and Signal Processing, ICICS 2009 - Macau Fisherman's Wharf, Macao
Duration: 8 Dec 200910 Dec 2009

Conference

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

Keywords

  • CMOS
  • Colpitts
  • Phase noise
  • VCO

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems
  • Signal Processing

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