A voltage-controlled oscillator for use within a pulse frequency modulation system

U. Schiller, Jon Travis, Zabih Ghassemlooy

Research output: Contribution to journalArticlepeer-review

Abstract

A fully integrated voltage-controlled oscillator (VCO) for use within a pulse frequency modulation (PFM) system is described, that achieves a linear voltage to frequency transfer characteristic over 17 MHz. The output of the VCO is a pulse waveform with a duty cycle below 20%. The VCO is based on two grounded capacitors and is implemented in a 2.4 µm CMOS technology. Owing to positive feedback, no start-up conditions for the oscillator are required.
Original languageEnglish
Pages (from-to)37-44
JournalInternational Journal of Electronics
Volume84
Issue number1
DOIs
Publication statusPublished - 1998

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