A CMOS Multi-Mode Baseband Filter with Automatic Tuning

Kang-Yoon LEE  Deog-Kyoon JEONG  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E86-C    No.2    pp.240-243
Publication Date: 2003/02/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Microwaves, Millimeter-Waves
Keyword: 
filter,  tuning,  baseband,  multi-mode,  corner frequency,  

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Summary: 
This paper presents a baseband filter for multi-mode applications with a new automatic tuning method. 5th-order Chebyshev low pass filter is designed for implementing the baseband channel-select filter. Capacitors and resistors were shared between modes to minimize the area. The new corner frequency tuning method is proposed to compensate the process variation. This method can reduce the noise level due to MOS switches.