112-Gb/s PAM-4 Transmitter With Differential Encoding and XOR Driver in 28-nm CMOS

Xin Liu; Bingyi Ye; Boyang Zhang; Weixin Gai

doi:10.1109/ICCS62517.2024.10846680

112-Gb/s PAM-4 Transmitter With Differential Encoding and XOR Driver in 28-nm CMOS

Xin Liu
, Bingyi Ye
, Boyang Zhang
, Weixin Gai^*

^*Corresponding author for this work

Peking University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

This article presents a 112-Gb/s pulse amplitude modulation 4-level (PAM-4) transmitter (TX) with differential encoding and XOR (exclusive OR) driver in 28-nm CMOS technology. Compared to the TXs using a 4:1 multiplexer (MUX) based on four-way interleaved 1-UI pulse generators, this design utilizes an XOR driver for serialization, which reduces the loading of the four-phase 14-GHz clock and eliminates the use of 1-UI pulse generator circuit to save power consumption. The main innovations of this work include the differential encoder RZ (return-to-zero) retimer, and XOR tailless driver. The simulation results indicate that the energy efficiency for the PAM-4 TX is 1.13pJ/b at 112 Gb/s with a 1-Vppd output amplitude.

Original language	English
Title of host publication	2024 6th International Conference on Circuits and Systems, ICCS 2024
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	181-184
Number of pages	4
ISBN (Electronic)	9798350352153
DOIs	https://doi.org/10.1109/ICCS62517.2024.10846680
State	Published - 2024
Externally published	Yes
Event	6th International Conference on Circuits and Systems, ICCS 2024 - Chengdu, China Duration: 20 Sep 2024 → 23 Sep 2024

Publication series

Name	2024 6th International Conference on Circuits and Systems, ICCS 2024

Conference

Conference	6th International Conference on Circuits and Systems, ICCS 2024
Country/Territory	China
City	Chengdu
Period	20/09/24 → 23/09/24

Keywords

4:1 multiplexer (MUX)
current mode logic (CML) driver
four-level pulse amplitude modulation (PAM-4)
non-return-to-zero (NRZ)
return-to-zero (RZ)
transmitter (TX)

UN SDGs

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

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10.1109/ICCS62517.2024.10846680

Cite this

Liu, X., Ye, B., Zhang, B., & Gai, W. (2024). 112-Gb/s PAM-4 Transmitter With Differential Encoding and XOR Driver in 28-nm CMOS. In 2024 6th International Conference on Circuits and Systems, ICCS 2024 (pp. 181-184). (2024 6th International Conference on Circuits and Systems, ICCS 2024). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCS62517.2024.10846680

@inproceedings{ee97c9e316a24dd6a0396e7d99276c4f,

title = "112-Gb/s PAM-4 Transmitter With Differential Encoding and XOR Driver in 28-nm CMOS",

abstract = "This article presents a 112-Gb/s pulse amplitude modulation 4-level (PAM-4) transmitter (TX) with differential encoding and XOR (exclusive OR) driver in 28-nm CMOS technology. Compared to the TXs using a 4:1 multiplexer (MUX) based on four-way interleaved 1-UI pulse generators, this design utilizes an XOR driver for serialization, which reduces the loading of the four-phase 14-GHz clock and eliminates the use of 1-UI pulse generator circuit to save power consumption. The main innovations of this work include the differential encoder RZ (return-to-zero) retimer, and XOR tailless driver. The simulation results indicate that the energy efficiency for the PAM-4 TX is 1.13pJ/b at 112 Gb/s with a 1-Vppd output amplitude.",

keywords = "4:1 multiplexer (MUX), current mode logic (CML) driver, four-level pulse amplitude modulation (PAM-4), non-return-to-zero (NRZ), return-to-zero (RZ), transmitter (TX)",

author = "Xin Liu and Bingyi Ye and Boyang Zhang and Weixin Gai",

note = "Publisher Copyright: {\textcopyright} 2024 IEEE.; 6th International Conference on Circuits and Systems, ICCS 2024 ; Conference date: 20-09-2024 Through 23-09-2024",

year = "2024",

doi = "10.1109/ICCS62517.2024.10846680",

language = "英语",

series = "2024 6th International Conference on Circuits and Systems, ICCS 2024",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "181--184",

booktitle = "2024 6th International Conference on Circuits and Systems, ICCS 2024",

address = "美国",

}

Liu, X, Ye, B, Zhang, B & Gai, W 2024, 112-Gb/s PAM-4 Transmitter With Differential Encoding and XOR Driver in 28-nm CMOS. in 2024 6th International Conference on Circuits and Systems, ICCS 2024. 2024 6th International Conference on Circuits and Systems, ICCS 2024, Institute of Electrical and Electronics Engineers Inc., pp. 181-184, 6th International Conference on Circuits and Systems, ICCS 2024, Chengdu, China, 20/09/24. https://doi.org/10.1109/ICCS62517.2024.10846680

112-Gb/s PAM-4 Transmitter With Differential Encoding and XOR Driver in 28-nm CMOS. / Liu, Xin; Ye, Bingyi; Zhang, Boyang et al.
2024 6th International Conference on Circuits and Systems, ICCS 2024. Institute of Electrical and Electronics Engineers Inc., 2024. p. 181-184 (2024 6th International Conference on Circuits and Systems, ICCS 2024).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - 112-Gb/s PAM-4 Transmitter With Differential Encoding and XOR Driver in 28-nm CMOS

AU - Liu, Xin

AU - Ye, Bingyi

AU - Zhang, Boyang

AU - Gai, Weixin

PY - 2024

Y1 - 2024

N2 - This article presents a 112-Gb/s pulse amplitude modulation 4-level (PAM-4) transmitter (TX) with differential encoding and XOR (exclusive OR) driver in 28-nm CMOS technology. Compared to the TXs using a 4:1 multiplexer (MUX) based on four-way interleaved 1-UI pulse generators, this design utilizes an XOR driver for serialization, which reduces the loading of the four-phase 14-GHz clock and eliminates the use of 1-UI pulse generator circuit to save power consumption. The main innovations of this work include the differential encoder RZ (return-to-zero) retimer, and XOR tailless driver. The simulation results indicate that the energy efficiency for the PAM-4 TX is 1.13pJ/b at 112 Gb/s with a 1-Vppd output amplitude.

AB - This article presents a 112-Gb/s pulse amplitude modulation 4-level (PAM-4) transmitter (TX) with differential encoding and XOR (exclusive OR) driver in 28-nm CMOS technology. Compared to the TXs using a 4:1 multiplexer (MUX) based on four-way interleaved 1-UI pulse generators, this design utilizes an XOR driver for serialization, which reduces the loading of the four-phase 14-GHz clock and eliminates the use of 1-UI pulse generator circuit to save power consumption. The main innovations of this work include the differential encoder RZ (return-to-zero) retimer, and XOR tailless driver. The simulation results indicate that the energy efficiency for the PAM-4 TX is 1.13pJ/b at 112 Gb/s with a 1-Vppd output amplitude.

KW - 4:1 multiplexer (MUX)

KW - current mode logic (CML) driver

KW - four-level pulse amplitude modulation (PAM-4)

KW - non-return-to-zero (NRZ)

KW - return-to-zero (RZ)

KW - transmitter (TX)

UR - https://www.scopus.com/pages/publications/85218196671

U2 - 10.1109/ICCS62517.2024.10846680

DO - 10.1109/ICCS62517.2024.10846680

M3 - 会议稿件

AN - SCOPUS:85218196671

T3 - 2024 6th International Conference on Circuits and Systems, ICCS 2024

SP - 181

EP - 184

BT - 2024 6th International Conference on Circuits and Systems, ICCS 2024

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 6th International Conference on Circuits and Systems, ICCS 2024

Y2 - 20 September 2024 through 23 September 2024

ER -

112-Gb/s PAM-4 Transmitter With Differential Encoding and XOR Driver in 28-nm CMOS

Abstract

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Keywords

UN SDGs

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