Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

Digital Tuning of Gm-C Baseband Filters in Configurable Radio Receivers

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Chamla, D. ; STMicroelectronics, Crolles ; Cathelin, A. ; Dedieu, S. ; Kaiser, A.

A master/slave technique which allows to digitally tune a Gm -C filter's cutoff frequency is proposed in the context of multi-standard configurable filters for direct conversion architectures. The proposed scheme relies on an accurate transconductance division technique. It allows to fix the reference frequency independently from the filter cutoff frequency, and does not require to know the filter's cutoff frequency tuning control law. This scheme has been implemented and measured with a Gm-C 5th-order Butterworth low-pass filter in a 0.13mum 1.2-V CMOS process. It ensures a less than 5% error on a large tuning range, allowing its use in multimode mobile cellular applications. The chip area is 0.16mm2 and its power consumption is reduced to less than 500μW.

Published in:

Solid-State Circuits Conference, 2006. ESSCIRC 2006. Proceedings of the 32nd European

Date of Conference:

19-21 Sept. 2006