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Design issues in CMOS differential LC oscillators

Hajimiri, Ali and Lee, Thomas H. (1999) Design issues in CMOS differential LC oscillators. IEEE Journal of Solid-State Circuits, 34 (5). pp. 717-724. ISSN 0018-9200. http://resolver.caltech.edu/CaltechAUTHORS:HAJieeejssc99b

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Abstract

An analysis of phase noise in differential cross-coupled inductance-capacitance (LC) oscillators is presented. The effect of tail current and tank power dissipation on the voltage amplitude is shown. Various noise sources in the complementary cross-coupled pair are identified, and their effect on phase noise is analyzed. The predictions are in good agreement with measurements over a large range of tail currents and supply voltages. A 1.8 GHz LC oscillator with a phase noise of -121 dBc/Hz at 600 kHz is demonstrated, dissipating 6 mW of power using on-chip spiral inductors.


Item Type:Article
Additional Information:© Copyright 1999 IEEE. Reprinted with permission. Manuscript received September 20, 1998; revised December 22, 1998. The authors would like to acknowledge Dr. G. Nasserbakht, H. Samavati, M. Hershenson, and H. Rategh for valuable technical discussions. They also acknowledge the technical contributions by S. Limotyrakis in particular. They would further like to thank Texas Instruments, Inc., for fabrication of the oscillators.
Subject Keywords:Design methodology, noise measurement, oscillator noise, oscillator stability, phase jitter, phase-locked loops, phase noise, voltage-controlled oscillators
Record Number:CaltechAUTHORS:HAJieeejssc99b
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:HAJieeejssc99b
Alternative URL:http://dx.doi.org/10.1109/4.760384
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4915
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:12 Sep 2006
Last Modified:26 Dec 2012 09:02

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