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Optimization VCO Frequency Range With Process Detector

IP.com Disclosure Number: IPCOM000029031D
Publication Date: 2004-Jun-11
Document File: 5 page(s) / 333K

Publishing Venue

The IP.com Prior Art Database

Abstract

Method and apparatus for mitigating effects of voltage scaling and process variation in a phase locked loop circuit. The apparatus includes the use of a process detector to generate control bits in a phase locked loop circuit. A voltage controlled oscillator is coupled to the process detector to vary the frequency range of the phase locked loop circuit based on the control bits. Variations on a control voltage used to control a frequency of a signal generated by the oscillator may be reduced using this apparatus.

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