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A CMOS channel-select tunable filter for 3G wireless receivers

Alzaher, H. and Tasadduq, N. and Ismail, M. (2003) A CMOS channel-select tunable filter for 3G wireless receivers. Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003 10th IEEE International conference, 2.

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Abstract

A new approach for designing digitally programmable CMOS integrated baseband filters is presented. It utilizes digitally controlled current followers and R-2R ladders to provide precise frequency characteristics that can be tuned over a wide range without components spreading. A 6-order Butterworth lowpass filter is designed for implementing the baseband channel select filter in an integrated multi-standard CMOS wireless receiver. Experimental results obtained from a 0.6/spl mu/m chip show a programmable frequency response accommodating PDC, IS-54, GSM, IS-95 and WCDMA wireless standards. The proposed filter design achieves dynamic ranges of 90dB for PDC (IS-54), 89dB for GSM, 84dB for IS-95 and 80dB for WCDMA.



Item Type:Article
Date:December 2003
Date Type:Publication
Subjects:Computer
Divisions:College Of Environmental Design > Architectural Engineering Dept
Creators:Alzaher, H. and Tasadduq, N. and Ismail, M.
ID Code:14608
Deposited By:KFUPM ePrints Admin
Deposited On:24 Jun 2008 16:42
Last Modified:12 Apr 2011 13:16

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