A 32-Gb/s Dual-Mode Transceiver with One-Tap FIR and Two-Tap IIR RX only Equalization in 65-nm CMOS Technology

Junyoung Song; Sewook Hwang; Chulwoo Kim

doi:10.1109/TVLSI.2021.3086325

A 32-Gb/s Dual-Mode Transceiver with One-Tap FIR and Two-Tap IIR RX only Equalization in 65-nm CMOS Technology

Junyoung Song, Sewook Hwang, Chulwoo Kim

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

This article presents an receiver (RX) only equalization (ROE) technique that eliminates feed-forward equalization (FFE) in transmitter (TX) and bandwidth improved output driver without increment of power consumption. With a help of the proposed design technique, the power consumption, circuit complexity, and design cost are improved. The proposed RX with one-tap finite-impulse response (FIR) and second-tap IIR decision feedback equalizer (DFE) removes the FFE equalization in TX by moving the sampling point of main cursor in the received data. A simpler TX architecture with nMOS only output driver (NOD) owing to the ROE facilitates a wide bandwidth and energy efficient dual-mode (differential and single-ended) operation. The proposed transceiver was fabricated in a 65-nm CMOS technology. The RX achieves bit error rate (BER) less than 10{-12} over a 22-dB channel loss at 32 Gb/s with 0.62-pJ/bit energy efficiency, and the TX with NOD has 0.77- and 0.40-pJ/bit energy efficiency at 32 Gb/s in differential mode and single-ended mode, respectively. The occupied area of TX and RX is 0.002 and 0.024 mm2, respectively.

Original language	English
Article number	9477212
Pages (from-to)	1567-1574
Number of pages	8
Journal	IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Volume	29
Issue number	8
DOIs	https://doi.org/10.1109/TVLSI.2021.3086325
Publication status	Published - 2021 Aug

Bibliographical note

Funding Information:
Manuscript received January 9, 2021; revised April 4, 2021 and May 14, 2021; accepted May 24, 2021. Date of publication July 7, 2021; date of current version August 2, 2021. This work was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education through the Basic Science Research Program under Grant NRF-2018R1D1A1A02086062. (Corresponding author: Chulwoo Kim.) Junyoung Song is with the Department of Electronics Engineering, Incheon National University, Incheon 22012, South Korea.

Publisher Copyright:
© 1993-2012 IEEE.

Keywords

Decision feedback equalizer (DFE)
dual-mode operation
equalization
transceiver
wireline interface

ASJC Scopus subject areas

Software
Hardware and Architecture
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/TVLSI.2021.3086325

Cite this

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title = "A 32-Gb/s Dual-Mode Transceiver with One-Tap FIR and Two-Tap IIR RX only Equalization in 65-nm CMOS Technology",

abstract = "This article presents an receiver (RX) only equalization (ROE) technique that eliminates feed-forward equalization (FFE) in transmitter (TX) and bandwidth improved output driver without increment of power consumption. With a help of the proposed design technique, the power consumption, circuit complexity, and design cost are improved. The proposed RX with one-tap finite-impulse response (FIR) and second-tap IIR decision feedback equalizer (DFE) removes the FFE equalization in TX by moving the sampling point of main cursor in the received data. A simpler TX architecture with nMOS only output driver (NOD) owing to the ROE facilitates a wide bandwidth and energy efficient dual-mode (differential and single-ended) operation. The proposed transceiver was fabricated in a 65-nm CMOS technology. The RX achieves bit error rate (BER) less than 10{-12} over a 22-dB channel loss at 32 Gb/s with 0.62-pJ/bit energy efficiency, and the TX with NOD has 0.77- and 0.40-pJ/bit energy efficiency at 32 Gb/s in differential mode and single-ended mode, respectively. The occupied area of TX and RX is 0.002 and 0.024 mm2, respectively.",

keywords = "Decision feedback equalizer (DFE), dual-mode operation, equalization, transceiver, wireline interface",

author = "Junyoung Song and Sewook Hwang and Chulwoo Kim",

note = "Funding Information: Manuscript received January 9, 2021; revised April 4, 2021 and May 14, 2021; accepted May 24, 2021. Date of publication July 7, 2021; date of current version August 2, 2021. This work was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education through the Basic Science Research Program under Grant NRF-2018R1D1A1A02086062. (Corresponding author: Chulwoo Kim.) Junyoung Song is with the Department of Electronics Engineering, Incheon National University, Incheon 22012, South Korea. Publisher Copyright: {\textcopyright} 1993-2012 IEEE.",

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N1 - Funding Information: Manuscript received January 9, 2021; revised April 4, 2021 and May 14, 2021; accepted May 24, 2021. Date of publication July 7, 2021; date of current version August 2, 2021. This work was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education through the Basic Science Research Program under Grant NRF-2018R1D1A1A02086062. (Corresponding author: Chulwoo Kim.) Junyoung Song is with the Department of Electronics Engineering, Incheon National University, Incheon 22012, South Korea. Publisher Copyright: © 1993-2012 IEEE.

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A 32-Gb/s Dual-Mode Transceiver with One-Tap FIR and Two-Tap IIR RX only Equalization in 65-nm CMOS Technology

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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