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A time-variant analysis of fundamental 1/f3 phase noise in CMOS parallel LC-tank quadrature oscillators

Författare:
Publiceringsår: 2009
Språk: Engelska
Sidor: 2173-2180
Publikation/Tidskrift/Serie: IEEE Transactions on Circuits and Systems I: Regular Papers
Volym: 56
Nummer: 10
Dokumenttyp: Artikel
Förlag: IEEE-Inst Electrical Electronics Engineers Inc

Sammanfattning

This paper presents a rigorous time-variant analysis
of the 1/f MOS device noise upconversion into 1/f^3 phase noise
for two of the most popular parallel-coupled quadrature CMOS
harmonic oscillators. Simple closed-form equations for the fundamental
1/f^3 phase-noise spectrum are derived and validated
through SpectreRF simulations, proving that the two topologies
display remarkably different sensitivities to the low-frequency
noise sources. Based on the developed analysis, useful general
design insights are also presented.

Disputation

Nyckelord

  • Technology and Engineering
  • CMOS RFICs
  • impulse sensitivity function (ISF)
  • quadrature oscillator.
  • phase noise
  • flicker noise

Övriga

Published
Yes
  • Data converters & RF
  • ISSN: 1549-8328

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