Browse > Article

New Gain Optimization Method for Sigma-Delta A/D Converters Using CIC Decimation Filters  

Jang, Jin-Kyu (Graduate School, Sangmyung University)
Jang, Young-Beom (College of Engineering, Sangmyung University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.47, no.4, 2010 , pp. 1-8 More about this Journal
Abstract
In this paper, we propose a new gain optimization technique for Sigma-Delta A/D converters. In the proposed scheme, multiple gain set candidates showing maximum SNR in the modulator block are selected, and then multiple gain set candidates are investigated for minimum MSE in decimation block. Through CIC decimation filter simulation, it is shown that second SNR ranking candidate in modulation block is the best gain set.
Keywords
Sigma-Delta modulator; Oversampling; CIC(Cascaded Integrator Comb) filter; SNR; MSE;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 강경식, 최영길, 노형동, 남현석, 노정진, "1-비트 4차 델타-시그마 변조기법을 이용한 D급 디지털 오디오 증폭기," 전자공학회논문지, 제45권, SD편 제3호, 44-53, 2008년 3월.   과학기술학회마을
2 장영범, 양세정, 유선국, "심장박동기용 시그마 델타 A/D 변환기에서의 저전력 데시메이션 필터 구조" 전기학회논문지 53D권, 2호, 111-117, 2004년 2월.   과학기술학회마을
3 변산호, 류성영, 최영길, 노형동, 남현석, 노정진, "시그마-델타 A/D 컨버터용 디지털 데시메이션 필터 설계," 전자공학회논문지, 제44권, SD편 제2호, 34-45, 2007년 2월.   과학기술학회마을
4 정요성, 장영범 "Sigma-Delta A/D 변환기의 새로운 이득 최적화 방식," 전자공학회논문지 제46권, TC편 제9호, 31-38, 2009년 9월.   과학기술학회마을
5 R. Steven, Norsworthy, Richard and G. Schreier, Delta-Sigma Data Converters : Theory, Design and Simulation, WILEY, pp. 1-41, 2001.
6 E. Hogenauer, "An economical class of digital filters decimation and interpolation," IEEE Transactions, Acoustics, Speech and Signal Processing, Vol. ASSP-29, No. 2, pp. 155-162, April 1981.
7 Michael J. Demler, High Speed Analog To Digital Conversion, Academic Press, pp.24-67, 1991.
8 W. Yun-Ti and B. Razavi, "An 8-bit 150-MHz CMOS A/D Convertor," IEEE J.Solid-State Circuits, Vol. 35, No. 3, pp. 308-317, March 2000.   DOI   ScienceOn
9 윤정식, 정정화, "Sigma-Delta modulator의 구조를 갖는 A/D 변환기 설계," 한국통신학회논문지, Vol. 28, No. 1C, 14-23, 2003년 1월.