Title :
Performances of bandpass cascaded SC filters with reduced pole-Qs
Author :
Biey, Mario ; Montecchi, Federico ; Premoli, Amedeo
Author_Institution :
Catania Univ., Italy
Abstract :
The multiple-critical-pole equiripple rational (MCPER) transfer functions are compared with the elliptic transfer functions in the design of bandpass cascaded-biquad switched-capacitor (SC) filters. Filters designed using the two classes of functions are investigated in terms of bandpass sensitivity, total capacitance, group delay, and noise. The results show that MCPER transfer functions make it possible to design SC filters with superior performances, in particular with lower bandpass sensitivity.<>
Keywords :
Q-factor; active filters; band-pass filters; cascade networks; network synthesis; transfer functions; active filters; bandpass; bandpass sensitivity; cascaded SC filters; group delay; multiple-critical-pole equiripple rational; noise; reduced pole Q-factors; switched-capacitor; total capacitance; transfer functions; Band pass filters; Capacitance; Capacitors; Delay; Dynamic range; Filtering; Q factor; Transfer functions;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo, Finland
DOI :
10.1109/ISCAS.1988.15155
