Title :
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
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;
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
DOI :
10.1109/ICECS.2005.4633572
