Integrated 18th-order pseudo-N-path filter in VIS-SC technique

An integrated 18th-order frequency symmetrical switched-capacitor (SC) bandpass filter is described that was realized by the use of voltage inverter switches (VISs) in the form of recharging devices. The filter was implemented in a standard CMOS technology. It was conceived for use as a `channel fil...

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Bibliographic Details
Published inIEEE journal of solid-state circuits Vol. 21; no. 1; pp. 48 - 56
Main Authors Pandel, J., Bruckmann, D., Fettweis, A., Hosticka, B.J., Kleine, U., Schweer, R., Zimmer, G.
Format Journal Article
LanguageEnglish
Published IEEE 01.02.1986
Subjects
Band pass filters
Capacitors
Clocks
CMOS technology
Delay
Frequency
Matched filters
Sampling methods
Shift registers
Transfer functions
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Summary:An integrated 18th-order frequency symmetrical switched-capacitor (SC) bandpass filter is described that was realized by the use of voltage inverter switches (VISs) in the form of recharging devices. The filter was implemented in a standard CMOS technology. It was conceived for use as a `channel filter' in modulation schemes for PCM/FDM and audio/FDM conversion. Starting from a high-pass filter as reference filter, the SC filter is designed as a pseudo-N-path filter, with N=2. The application of the pseudo-N-path principle leads to a substantial saving in hardware.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.1986.1052481