Title :
Digitally programmable switched-capacitor equalizers
Author :
Petraglia, Antonio ; Mitra, Sanjit K.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
The digitally programmable switched-capacitor equalization filter considered uses a structurally allpass section as a basic building block, allowing for orthogonal tuning of center frequency, bandwidth and gain, through the use of three independent capacitor arrays. Effects of finite gain and bandwidth of the operational amplifiers are investigated. Simulation and experimental results are presented verifying the models involved in the analysis
Keywords :
all-pass filters; equalisers; frequency response; network synthesis; switched capacitor filters; capacitor arrays; digitally programmable switched-capacitor equalization filter; operational amplifier bandwidth; operational amplifier gain; orthogonal tuning; simulation; structurally allpass section; Analytical models; Bandwidth; Capacitors; Circuits; Cutoff frequency; Digital filters; Equalizers; Operational amplifiers; Sampling methods; Transfer functions;
Conference_Titel :
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN :
0-7803-0050-5
DOI :
10.1109/ISCAS.1991.176728
