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2.4GHz wake-up receiver with suppressed substrate noise coupling

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Title: 2.4GHz wake-up receiver with suppressed substrate noise coupling
Authors: Hiramatsu, Shota Browse this author
Ikebe, Masayuki Browse this author →KAKEN DB
Sano, Eiichi Browse this author →KAKEN DB
Keywords: Wake-up receiver
Mixed signal
Analog and digital
Substrate noise coupling
Clock and data recovery
Issue Date: Jul-2019
Publisher: Springer
Journal Title: Analog integrated circuits and signal processing
Volume: 100
Issue: 1
Start Page: 23
End Page: 29
Publisher DOI: 10.1007/s10470-019-01448-4
Abstract: The switching noise generated in digital circuits propagates through conductive silicon substrate to analog circuits in a mixed-signal CMOS LSI. Substrate noise coupling may degrade the performance of the analog circuits, and may result in a fault operation of the mixed-signal LSI in the worst-case. In this paper, the substrate noise coupling between the clock recovery circuit and the input port of the envelop detector in a low-power wake-up receiver (WuRx) was investigated experimentally. The propagation path of the substrate noise coupling was clarified by comparing the experimental results with the circuit simulations on the basis of an equivalent circuit model. The design of the WuRx was modified on the basis of the findings to suppress the substrate noise coupling. The fabricated WuRx successfully operated a 100-kbps PWM signal with a carrier frequency of 2.4GHz, and the effectiveness of the noise coupling suppression recipe was confirmed.
Type: article
Appears in Collections:量子集積エレクトロニクス研究センター (Research Center for Integrated Quantum Electronics) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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