A low sampling frequency switched capacitor low-pass filter for wireless receivers

Jakub Kopański , Łukasz Wiechowski , Krzysztof Siwiec , Witold Pleskacz


This paper presents a low-pass filter with variable gain for use in direct conversion wireless receivers. The filter is implemented using the switched-capacitor technique. Its sampling clock frequency is, however, only moderately higher than signal frequencies of interest. To cope with the problems that this creates, a new set of design equations are derived, from analytically calculated filter transfer function in Z domain. Circuit implementation is shown and its electrical simulation results, both schematic and post-layout are presented.
Author Jakub Kopański IMiO
Jakub Kopański,,
- The Institute of Microelectronics and Optoelectronics
, Łukasz Wiechowski IMiO
Łukasz Wiechowski,,
- The Institute of Microelectronics and Optoelectronics
, Krzysztof Siwiec IMiO
Krzysztof Siwiec,,
- The Institute of Microelectronics and Optoelectronics
, Witold Pleskacz IMiO
Witold Pleskacz,,
- The Institute of Microelectronics and Optoelectronics
Publication size in sheets0.5
Book Napieralski Andrzej (eds.): Proceedings of 23rd International Conference Mixed Design of Integrated Circuits and Systems MIXDES 2016, vol. CFP16MIX-CDR, 2016, Lodz University of Technology, Department of Microelectronics and Computer Science, ISBN 978-83-63578-08-4, 538 p.
Keywords in EnglishCMOS; direct conversion; filter; low power; low-pass; mixed-signal; switched capacitor; wireless; z-domain
URL http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7529716
projectxxx. Project leader: Pleskacz Witold, , Phone: (48 22) 234 53 64, application date 22-03-2013, start date 06-05-2013, planned end date 05-05-2016, DOBR/0053/R/ID1/2013/03, Implemented
WEiTI Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR)]
Languageen angielski
Score (nominal)15
ScoreMinisterial score [Punktacja MNiSW] = 15.0, 27-03-2017, BookChapterMatConfByIndicator
Ministerial score (2013-2016) [Punktacja MNiSW (2013-2016)] = 15.0, 27-03-2017, BookChapterMatConfByIndicator
Citation count*0 (2018-06-18)
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