Title :
Switched-capacitor polyphase decimating circuits with reduced capacitance spread
Author_Institution :
Dept. of Electr. & Comput. Eng., Inst. Superior Tecnico, Lisboa, Portugal
Abstract :
A simple solution to reduce the very large capacitance spread inherently associated with switched-capacitor polyphase decimating circuits with long finite impulse responses is proposed. This increases the practicality of such circuits to implement high selectivity filtering characteristics with linear phase responses.
Keywords :
active networks; switched capacitor networks; SC circuits; polyphase decimating circuits;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19911459
