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

fYear

2006

fDate

26-28 April 2006

Firstpage

37

Lastpage

41

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICCDCS.2006.250834

Filename

4016862