Digital self-tuning technique for continuous-time filters

Author

Navarro, G. Zatorre ; Peralías, E. ; Pueyo, S. Celma ; Chagoyen, C. Aldea ; Marqués, N. Medrano

Author_Institution

Electron. Design Group, Univ. of Zaragoza, Zaragoza

fYear

2005

fDate

11-14 Dec. 2005

Firstpage

1

Lastpage

4

Abstract

In this paper, a new auto-tuning digital technique is reported for continuous-time 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 continuous-time filter applications. The system consumes less area, power and tuning time than other proposed schemes. Simulated results show the building viability in a 10 MHz low pass filter.

Keywords

CMOS integrated circuits; VHF filters; circuit tuning; frequency response; low-pass filters; mixed analogue-digital integrated circuits; 3rd-order low pass filter; auto-tuning digital technique; continuous-time filter; digital self-tuning technique; frequency 10 MHz; frequency response; mixed signal CMOS process; size 0.35 mum; very high frequency application; 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

Electronics, Circuits and Systems, 2005. ICECS 2005. 12th IEEE International Conference on

Conference_Location

Gammarth

Print_ISBN

978-9972-61-100-1

Electronic_ISBN

978-9972-61-100-1

Type

conf

DOI

10.1109/ICECS.2005.4633572

Filename

4633572