DocumentCode
947962
Title
Application of switched-capacitor resistors in RC oscillators
Author
Viswanathan, T.R. ; Singhal, Kushagra ; Metzker, G.
Author_Institution
University of Waterloo, Department of Electrical Engineering, Waterloo, Canada
Volume
14
Issue
20
fYear
1978
Firstpage
659
Lastpage
660
Abstract
The magnitude of a switched-capacitor resistor (sw.c.r.) is controlled by varying the switching frequency. Their use in RC oscillators enables the variation of the frequency of oscillation by changing the relatively high switching frequency. Since the high switching frequency is easily voltage-controlled, the low-frequency oscillator effectively becomes a v.c.o. giving a low-distortion sinusoidal waveform.
Keywords
active filters; capacitors; resistors; switched filters; variable-frequency oscillators; RC oscillators; Wein bridge oscillator; automatic gain control; operational amplifier; switched capacitor resistor; switching arrangement; switching frequency;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19780442
Filename
4242629
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