A 5kHz Bandwidth Low Noise Chopper-Stabilized Dual-Band Selective Filter SoC

  • Jae Bin Kim Sungkyunkwan University
  • Tae Seob Oh Sungkyunkwan University
  • Jong Wan Jo Sungkyunkwan University
  • Kang Yoon Lee Sungkyunkwan University
DOI: https://doi.org/10.23075/jicas.2021.7.2.002
Keywords: Band pass filter, Chopper structure, Soc

Abstract

In this paper, various blocks and structures applied to the low-noise 2 band selection band pass filter are described. In the proposed band pass filter when the frequency is input through the buffer, one of Band 1 or Band 2 can be selected using the switch, and the output goes through the buffer after the selected switch among Band 1 and Band 2. After the pre-amplifier, the low frequency band pass filter is used to secure -3 dB or more at 29.5 kHz (5 kHz range) and is used to secure -1 dB or more at 39.5 kHz (5 kHz range). The aim is to remove the interference between bands by -20 dB or more at the interference frequencies of 29.5 Hz and 39.5 Hz, which are the center frequencies of each band. Chopper structure was used to reduce noise, and it was designed to drop more than -21dB/√Hz in Band1,2.

Author Biographies

Jae Bin Kim, Sungkyunkwan University

Jae Bin Kim received his B.S. degree from the Department of Electrical Engineering at Myongji University, Yongin, Korea, in 2019, Since then he has been working toward the combined Ph.D. & M.S. Course in electronics and computer engineering from Sungkyunkwan University, Suwon, Korea. His research interests include Power Management IC and Wireless Power Transfer System.

Tae Seob Oh, Sungkyunkwan University

Tae Seob Oh received his B.S. degree from the Department of Mathmatics at Sungkyunkwan University, Suwon, Korea, in 2020, He is currently working toward the M.S. course in Electornics and Computer Engineering from Sungkyunkwan University, Suwon, Korea. His research interests include Neuromorphic IC.

Jong Wan Jo, Sungkyunkwan University

Jong Wan Jo received his B.S. degree from the Department of Electronic Engineering at Cheongju University, Cheongju, Korea, in 2018, and the M.S. degree in School of Information and Communication Engineering, Sungkyunkwan University. He is currently working toward a Ph.D. degree in electronic engineering at Sungkyunkwan University. His research interests include Wireless Power Transfer systems and Power Management IC.

Kang Yoon Lee, Sungkyunkwan University

Kang Yoon Lee received the B.S., M.S. and Ph.D. degrees in the School of Electrical Engineering from Seoul National University, Seoul, Korea, in 1996, 1998, and 2003, respectively.

From 2003 to 2005, he was with GCT Semiconductor Inc., San Jose, CA, where he was a Manager of the Analog Division and worked on the design of CMOS frequency synthesizer for CDMA/PCS/PDC and single-chip CMOS RF chip sets for W-CDMA, WLAN, and PHS. From 2005 to 2011, he was with the Department of Electronics Engineering, Konkuk University as an Associate Professor. Since 2012, he has been with College of Information and Communication Engineering, Sungkyunkwan University, where he is currently a Professor. His research interests include implementation of power integrated circuits, CMOS RF transceiver, analog integrated circuits, and analog/digital mixed-mode VLSI system design.

Homepage : http://www.iclab.co.kr/

Published
2021-04-01
How to Cite
Kim, J. B., Oh, T. S., Jo, J. W., & Lee, K. Y. (2021). A 5kHz Bandwidth Low Noise Chopper-Stabilized Dual-Band Selective Filter SoC. Journal of Integrated Circuits and Systems, 7(2). https://doi.org/10.23075/jicas.2021.7.2.002
Issue
Vol 7 No 2 (2021)
Section
Articles

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