• DocumentCode
    2215696
  • Title

    Phase noise in multi-gigahertz CMOS ring oscillators

  • Author

    Hajimiri, Ali ; Limotyrakis, Sotirios ; Lee, Thomas H.

  • Author_Institution
    Center for Integrated Syst., Stanford Univ., CA, USA
  • fYear
    1998
  • fDate
    11-14 May 1998
  • Firstpage
    49
  • Lastpage
    52
  • Abstract
    An analysis of the phase noise in differential and single-ended ring oscillators using a time-variant model is presented. An expression for the RMS value of the impulse sensitivity function (ISF) is derived. A closed-form equation for phase noise of ring oscillators is calculated and a lower limit on the phase noise of ring oscillators is shown. Phase noise measurements of oscillators running up to 5.5 GHz are in good agreement with the theory
  • Keywords
    CMOS analogue integrated circuits; MMIC oscillators; integrated circuit noise; phase noise; 5.5 GHz; RMS value; closed-form equation; differential ring oscillators; impulse sensitivity function; multi-gigahertz CMOS ring oscillators; noise measurements; single-ended ring oscillators; time-variant model; Clocks; Communication systems; Fluctuations; Noise measurement; Phase measurement; Phase noise; Radio frequency; Ring oscillators; Semiconductor device modeling; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Custom Integrated Circuits Conference, 1998. Proceedings of the IEEE 1998
  • Conference_Location
    Santa Clara, CA
  • Print_ISBN
    0-7803-4292-5
  • Type

    conf

  • DOI
    10.1109/CICC.1998.694905
  • Filename
    694905