文章基本信息

标题：CMOS-Compatible Linear VCO Using a Single CFOA and Grounded Capacitors
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作者：D. K. Srivastava ; V. K. Singh ; R. Senani 等
期刊名称：American Journal of Electrical and Electronic Engineering
印刷版ISSN：2328-7365
电子版ISSN：2328-7357
出版年度：2018
卷号：5
期号：6
页码：202-206
DOI：10.12691/ajeee-5-6-2
出版社：Science and Education Publishing
摘要：A simple CMOS-compatible linear voltage controlled oscillator (VCO) has been presented which employs a single CFOA, four MOSFETs and three grounded capacitors as preferred for IC implementation. In the proposed circuit, variable frequency oscillations are obtained by simultaneous variation of two voltage-controlled-resistors in the circuit which appear in the expression for oscillation frequency in the product form but appear as a ratio in the condition of oscillation (which therefore, remains unaffected). The workability of the proposed VCO has been confirmed by SPICE simulations using an exemplary CMOS CFOA and CMOS VCRs both implementable in 0.18µm CMOS technology.
关键词：sinusoidal oscillators; current feedback operational amplifiers; voltage controlled oscillators; voltage controlled resistance