Title :
Design of a frequency tuning circuit used in IFLF filters
Author :
Chiang, David H. ; Schaumann, Rolf
Author_Institution :
Storage Products Group, Texas Instrum. Inc., Tustin, CA, USA
Abstract :
A simple frequency tuning circuit based on a peak-detection scheme is designed to tune a fifth-order Chebyshev lowpass filter based on the inverse-follow-the-leader feedback (IFLF) topology. The tuning block consists of very simple circuitry. Simulated and measured results verify the tuning function
Keywords :
CMOS analogue integrated circuits; Chebyshev filters; circuit feedback; circuit tuning; continuous time filters; low-pass filters; peak detectors; Chebyshev lowpass filter; IFLF filters; fifth-order lowpass filter; frequency tuning circuit; inverse-follow-the-leader feedback topology; peak-detection scheme; Capacitors; Circuit optimization; Circuit topology; Cutoff frequency; Detectors; Filters; Transconductance; Transconductors; Tuning; Voltage;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.858712
