DocumentCode :
1194103
Title :
Design of state-variable SC filters by means of polynomial transformation
Author :
Davis, Artice M. ; Smith, Robin R.
Volume :
33
Issue :
12
fYear :
1986
fDate :
12/1/1986 12:00:00 AM
Firstpage :
1248
Lastpage :
1251
Abstract :
A simple polynomial transformation is presented which permits efficient computation of SC state-variable coefficients directly from Z -domain specifications. The algorithm relies merely upon synthetic division. The technique is applied to synthesize a fourth-order elliptic filter using only forward difference integrators (FDI), or, alternatively, only backward difference integrators (BDI). A specific state-variable topology, the so-called observer canonical form, was chosen; the technique, however, is more generally applicable. The use of a single SC integrator topology permits a significant reduction in the number of switches. Experimental results are presented which demonstrate the practical utility of the method.
Keywords :
Polynomials; Switched-capacitor filters; Circuit noise; Circuit synthesis; Circuit theory; Digital filters; Electrons; Equations; Lattices; Passband; Polynomials; Voltage;
fLanguage :
English
Journal_Title :
Circuits and Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0098-4094
Type :
jour
DOI :
10.1109/TCS.1986.1085874
Filename :
1085874
Link To Document :
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