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A Design of CMOS Multi-Mode Baseband Filter with New Automatic Tuning  

Lee Kang-Yoon (Department of Electronic Eng. Konkuk University)
Ku Hyunchul (Department of Electronic Eng. Konkuk University)
Hur Jeong (Department of Electronic Eng. Konkuk University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.43, no.2, 2006 , pp. 34-41 More about this Journal
Abstract
This paper presents a CMOS multi-mode baseband filter architecture to support PDC/GSM/EDGE/WCDMA and its new automatic tuning method. 5-th order Chebyshev low pass filter is designed for implementing the baseband channel-select filter. Capacitors and resistors were shared efficiently between modes to minimize the area. And, the new cut-off frequency tuning method is proposed to compensate the process variation. This method can reduce the area and the noise level due to MOS switches.
Keywords
필터;튜닝;기저대역;다중 모드;차단 주파수;
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