DocumentCode
894396
Title
A digitally programmable switched-capacitor universal active filter/oscillator
Author
Cox, Douglas B.
Volume
18
Issue
4
fYear
1983
Firstpage
383
Lastpage
389
Abstract
A universal second-order switched-capacitor filter section has been fabricated on an NMOS chip. The device can perform all five basic filter types as well as a sine wave oscillator without external components, while requiring only an external clock. The filter type is determined by selecting one or more of three input pins. The filter response is determined by ten external programming pins which may be either digitally controlled or hard wired.
Keywords
Active filters; Field effect integrated circuits; Linear integrated circuits; Oscillators; Switched capacitor networks; Switched filters; active filters; field effect integrated circuits; linear integrated circuits; oscillators; switched capacitor networks; switched filters; Active filters; Band pass filters; Clocks; Digital filters; Frequency; Low pass filters; Oscillators; Pins; Switching circuits; Telecommunication switching;
fLanguage
English
Journal_Title
Solid-State Circuits, IEEE Journal of
Publisher
ieee
ISSN
0018-9200
Type
jour
DOI
10.1109/JSSC.1983.1051960
Filename
1051960
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