A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization

A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization

An ultralow-power Gaussian frequency-shift keying (GFSK) demodulator with large tolerance for process variations and wide coverage of data rate for low-intermediate-frequency (low-IF) wireless receivers is p...

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Main Authors: Han, Dong, Zheng, Yuanjin
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2010
Subjects:
DRNTU::Engineering::Electrical and electronic engineering
Online Access:https://hdl.handle.net/10356/91625
http://hdl.handle.net/10220/6236
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-916252020-03-07T14:02:41Z A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization Han, Dong Zheng, Yuanjin School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering An ultralow-power Gaussian frequency-shift keying (GFSK) demodulator with large tolerance for process variations and wide coverage of data rate for low-intermediate-frequency (low-IF) wireless receivers is presented. A novel multithreshold linear phase quantization technique is proposed to improve the demodulator sensitivity and relax the tradeoff between the selection of the IF and the data rate. A dynamic threshold slicer is employed to efficiently overcome the dc drifts caused by the input frequency offset. The demodulator achieves 490-mV input dc offset cancellation, 800-kHz frequency offset tolerance, and data rate coverage from 100 kb/s to 2 Mb/s. The measured signal-to-noise ratio (SNR) is 16.0 dB for a 0.1% bit error rate (BER) and a 0.25 modulation index. The demodulator has been fabricated in a 0.18-μm complimentary metal–oxide–semiconductor process with only 0.14-mm2 active area and 450-μA current drawn from a 1.8-V power supply. Published version 2010-04-15T02:44:19Z 2019-12-06T18:09:11Z 2010-04-15T02:44:19Z 2019-12-06T18:09:11Z 2009 2009 Journal Article Han, D., & Zheng, Y. (2009). A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization. IEEE Transactions On Circuits And Systems—II, 56(9), 719-723. 1549-7747 https://hdl.handle.net/10356/91625 http://hdl.handle.net/10220/6236 10.1109/TCSII.2009.2027969 en IEEE transactions on circuits and systems—II © 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. http://www.ieee.org/portal/site This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. 5 p. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering
spellingShingle DRNTU::Engineering::Electrical and electronic engineering
Han, Dong
Zheng, Yuanjin
A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization
description An ultralow-power Gaussian frequency-shift keying (GFSK) demodulator with large tolerance for process variations and wide coverage of data rate for low-intermediate-frequency (low-IF) wireless receivers is presented. A novel multithreshold linear phase quantization technique is proposed to improve the demodulator sensitivity and relax the tradeoff between the selection of the IF and the data rate. A dynamic threshold slicer is employed to efficiently overcome the dc drifts caused by the input frequency offset. The demodulator achieves 490-mV input dc offset cancellation, 800-kHz frequency offset tolerance, and data rate coverage from 100 kb/s to 2 Mb/s. The measured signal-to-noise ratio (SNR) is 16.0 dB for a 0.1% bit error rate (BER) and a 0.25 modulation index. The demodulator has been fabricated in a 0.18-μm complimentary metal–oxide–semiconductor process with only 0.14-mm2 active area and 450-μA current drawn from a 1.8-V power supply.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Han, Dong
Zheng, Yuanjin
format Article
author Han, Dong
Zheng, Yuanjin
author_sort Han, Dong
title A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization
title_short A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization
title_full A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization
title_fullStr A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization
title_full_unstemmed A mixed-signal GFSK demodulator based on multi-threshold linear phase quantization
title_sort mixed-signal gfsk demodulator based on multi-threshold linear phase quantization
publishDate 2010
url https://hdl.handle.net/10356/91625
http://hdl.handle.net/10220/6236
_version_ 1681043798693511168

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