Title :
Digital Auto-Tuning System for Analog Filters
Author :
Zatorre, G. ; Celma, S. ; Aldea, C. ; Medrano, N. ; Peralías, E.
Author_Institution :
Dpto. de Ingenieria Electronica y Comunicaciones, Univ. de Zaragoza
Abstract :
In this paper, a new self-tuning digital technique is reported for analog filters over VHF (very high frequency) applications, based on phase detector. By using a 0.35 mum mixed signal CMOS process, changes in frequency response of a 3rd-order low pass filter can be tuned with a 3% error over the designed value. This technique confirms the feasibility of the proposed scheme in analog filter applications. The system consumes less area, power and tuning time than other proposed schemes. Simulation results show the building viability in a 10 MHz low pass filter
Keywords :
CMOS integrated circuits; VHF filters; analogue circuits; circuit tuning; continuous time filters; low-pass filters; mixed analogue-digital integrated circuits; phase detectors; 0.35 micron; 10 MHz; 3rd-order low pass filter; VHF filter; analog filters; digital auto-tuning system; frequency response; mixed signal CMOS process; phase detector; self-tuning digital technique; Buildings; CMOS process; Digital filters; Frequency response; Low pass filters; Phase detection; Phase frequency detector; Signal design; Signal processing; Tuning;
Conference_Titel :
Devices, Circuits and Systems, Proceedings of the 6th International Caribbean Conference on
Conference_Location :
Playa del Carmen
Print_ISBN :
1-4244-0041-4
Electronic_ISBN :
1-4244-0042-2
DOI :
10.1109/ICCDCS.2006.250834
