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research
A 2-40 Gb/s PAM4/NRZ dual-mode wireline transmitter with 4:1 MUX in 65-nm CMOS
Authors
Y He
F Lv
+7 more
J Wang
Z Wang
Z Wang
S Yuan
C Zhang
F Zhao
X Zheng
Publication date
Publisher
'The Institute of Electronics Engineers of Korea'
Doi
Cite
Abstract
This paper presents a 2-40 Gb/s dual-mode wireline transmitter supporting the four-level pulse amplitude modulation (PAM4) and non-return-to-zero (NRZ) modulation with a multiplexer (MUX)-based two-tap feed-forward equalizer (FFE). An edge-acceleration technique is proposed for the 4:1 MUX to increase the bandwidth. By utilizing a dedicated cascode current source, the output swing can achieve 900 mV with a level deviation of only 0.12% for PAM4. Fabricated in a 65-nm CMOS process, the transmitter consumes 117 mW and 89 mW at 40 Gb/s in PAM4 and NRZ at 1.2 V supply. © 2018, Institute of Electronics Engineers of Korea. All rights reserved
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info:doi/10.5573%2Fjsts.2018.1...
Last time updated on 05/02/2021
LJMU Research Online (Liverpool John Moores University)
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Last time updated on 04/06/2018