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A 32-Gb/s 3.53-mW/Gb/s Adaptive Receiver AFE Employing a Hybrid CTLE, Edge-DFE and Merged Data-DFE/CDR in 65-nm CMOS
Arya Balachandran1; Yong Chen2; Chirn Chye Boon1
2019-11
Conference Name15th Annual IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2019
Source PublicationProceedings - APCCAS 2019: 2019 IEEE Asia Pacific Conference on Circuits and Systems: Innovative CAS Towards Sustainable Energy and Technology Disruption
Pages221-224
Conference Date11-14 November 2019
Conference PlaceBangkok, Thailand
CountryThailand
PublisherIEEE
Abstract

A 32-Gb/s adaptive receiver analog front-end (AFE) with a hybrid continuous-time linear equalizer (CTLE), a half-rate distributed edge and data decision feedback equalizer (DFE) and a clock data recovery (CDR) is presented. The hybrid CTLE counters the low-frequency as well as the high-frequency loss of 21 dB at Nyquist. Further post-cursors can be solved by using a half- rate, distributed 3-tap edge-DFE and 2-tap data-DFE, which is partially embedded in the CDR. The distributed DFE scheme addresses the inter symbol interference (ISI) at the edge and reduces the data jitter while data-DFE guarantees the vertical opening of the data eye. Fabricated in 65-nm CMOS, occupying an active area of 0.3 mm, the proposed prototype demonstrates an improvement of 0.15 UI in the horizontal eye opening of the data output at a receiver AFE with the conventional 5-tap data-DFE at BER=10, under a pseudorandom binary sequence (PRBS) of 2-1. The competitive power efficiency of 3.53 mW/Gb/s is measured with a supply voltage of 1.2 V.

KeywordCmos Analog Front-end (Afe) Low Frequency Equalization (Lfeq) Inductorless Continuous-time Linear Equalizer (Ctle) Inductorless Channel Loss Decision Feedback Equalization (Dfe) Receiver
DOI10.1109/APCCAS47518.2019.8953146
URLView the original
Language英語English
Scopus ID2-s2.0-85078694667
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Citation statistics
Document TypeConference paper
CollectionFaculty of Science and Technology
INSTITUTE OF MICROELECTRONICS
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorYong Chen
Affiliation1.Nanyang Technological University, Singapore, Singapore
2.State Key Laboratory of Analog and Mixed-Signal VLSI and FST-ECE, University of Macau, Macau, China.
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Arya Balachandran,Yong Chen,Chirn Chye Boon. A 32-Gb/s 3.53-mW/Gb/s Adaptive Receiver AFE Employing a Hybrid CTLE, Edge-DFE and Merged Data-DFE/CDR in 65-nm CMOS[C]:IEEE, 2019, 221-224.
APA Arya Balachandran., Yong Chen., & Chirn Chye Boon (2019). A 32-Gb/s 3.53-mW/Gb/s Adaptive Receiver AFE Employing a Hybrid CTLE, Edge-DFE and Merged Data-DFE/CDR in 65-nm CMOS. Proceedings - APCCAS 2019: 2019 IEEE Asia Pacific Conference on Circuits and Systems: Innovative CAS Towards Sustainable Energy and Technology Disruption, 221-224.
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