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A 1.0 V, 5.4 pJ/bit GFSK Demodulator Based on an Injection Locked Ring Oscillator for Low-IF Receivers

Title
A 1.0 V, 5.4 pJ/bit GFSK Demodulator Based on an Injection Locked Ring Oscillator for Low-IF Receivers
Authors
Hong, SoonyoungGeorge, Arup KocheethraIm, DongguJe, MinkyuLee, Junghyup
DGIST Authors
Hong, Soonyoung; George, Arup Kocheethra; Im, Donggu; Je, Minkyu; Lee, Junghyup
Issue Date
2020-10
Citation
IEEE Access, 8, 185209-185217
Type
Article
Article Type
Article
Author Keywords
DemodulatorGFSKlow powerinjection locked ring oscillatorlow-IFCMOS
Keywords
FREQUENCY OFFSET
ISSN
2169-3536
Abstract
This paper presents an ultra-low power, low cost demodulator for gaussian frequency shift keying (GFSK) receivers that use low intermediate frequencies (IF). The demodulator employs a direct IF to digital data conversion scheme by using an injection-locked ring oscillator (ILRO) with a 1-bit flip-flop. It consumes 2.7 µW from a 1.0 V supply at a data rate of 500 kbps achieving an energy efficiency of 5.4 pJ/bit which is 30 times better than that of the recently presented works. The demodulator also achieves 17.5 dB SNR at 0.1 % BER while operating at the same date rate. The demodulator is implemented in a 0.18 µm standard CMOS process and occupies an active area of 0.012 mm2 © 1991 BMJ Publishing Group. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/12558
DOI
10.1109/ACCESS.2020.3029863
Publisher
Institute of Electrical and Electronics Engineers Inc.
Related Researcher
  • Author Lee, Junghyup Integrated Nano-Systems Laboratory
  • Research Interests Analog and Mixed Signal IC Design; Smart Sensor Systems; Bio-medical ICs and Body Channel Communication Systems
Files:
There are no files associated with this item.
Collection:
Department of Information and Communication EngineeringIntegrated Nano-Systems Laboratory1. Journal Articles


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