DocumentCode
894387
Title
Integrated switched-capacitor FDNR filter
Author
Cooperman, Michael ; Kapral, Christopher W.
Volume
18
Issue
4
fYear
1983
fDate
8/1/1983 12:00:00 AM
Firstpage
378
Lastpage
383
Abstract
A switched-capacitor filter using a frequency-dependent negative resistance (FDNR) is described. FDNR filters closely simulate passive LC filters, thereby retaining passband stability and design simplicity. The filter has been implemented in LSI and designed to perform the transmit/receive filtering for PCM codecs. Circuits are described that overcome the floating node and floating amplifier problems previously associated with FDNRs.
Keywords
Active filters; Codecs; Field effect integrated circuits; Linear integrated circuits; Negative resistance; Switched capacitor networks; Switched filters; active filters; codecs; field effect integrated circuits; linear integrated circuits; negative resistance; switched capacitor networks; switched filters; Circuit simulation; Frequency response; Low pass filters; MOS capacitors; Passband; Passive filters; Resistors; Switched capacitor circuits; Switches; Transfer functions;
fLanguage
English
Journal_Title
Solid-State Circuits, IEEE Journal of
Publisher
ieee
ISSN
0018-9200
Type
jour
DOI
10.1109/JSSC.1983.1051959
Filename
1051959
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