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Phase noise in multi-gigahertz CMOS ring oscillators

Hajimiri, Ali and Limotyrakis, Sotirios and Lee, Thomas H. (1998) Phase noise in multi-gigahertz CMOS ring oscillators. In: Proceedings of the IEEE 1998 Custom Integrated Circuits Conference. IEEE , Piscataway, NJ, pp. 49-52. ISBN 0-7803-4292-5

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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.

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Additional Information:© 1998 IEEE. Date of Current Version: 06 August 2002. The authors would like to acknowledge Dr. Gitty Nasserbakht, Dr. Masoud Zargari, Ramin Farjad-Rad and Hirad Samavati for valuable technical discussions. They would further like to thank Texas Instruments Inc. for fabrication of the oscillators.
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INSPEC Accession Number6118279
Record Number:CaltechAUTHORS:20111222-111025211
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Official Citation:Hajimiri, A.; Limotyrakis, S.; Lee, T.H.; , "Phase noise in multi-gigahertz CMOS ring oscillators," Custom Integrated Circuits Conference, 1998. Proceedings of the IEEE 1998 , vol., no., pp.49-52, 11-14 May 1998 doi: 10.1109/CICC.1998.694905 URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:28568
Deposited By: Tony Diaz
Deposited On:22 Dec 2011 19:42
Last Modified:22 Dec 2011 19:42

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