A 112-Gb/s Single-Ended PAM-4 Transceiver Front-End for Reach Extension in Long-Reach Link

Luo，Xiongshi1; You，Xuewei1; Fu，Jiahan1; Li，Zhenghao1; Zhong，Liping1; Fan，Taiyang1; Qiu，Zhang1; Xiao，Wenbo1; Chen，Yong2; Pan，Quan1

10.1109/ESSCIRC55480.2022.9911452

2022

48th IEEE European Solid State Circuits Conference (ESSCIRC)

978-1-6654-8495-4

ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings

497-500

19-22 Sept. 2022

Milan, Italy

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

This paper presents a 112-Gb/s single-ended (SE) PAM-4 transceiver front-end for the reach-extension module in a 130 nm SiGe BiCMOS technology. The transmitter front-end is based on a differential-To-SE driver where the negative capacitance scheme is introduced to extend its bandwidth. The receiver front-end features a low-mismatch SE-To-differential (S2D) amplifier and an inductor-reuse continuous-Time linear equalizer (CTLE). In the S2D, both the asymmetric reused inductor and capacitance compensation techniques are implemented to eliminate the mismatch at the pseudo-differential outputs. In the CTLE, both the inductor reuse and boosted current reuse techniques are adopted to save area, and further boost the maximum peaking frequency and equalization range. Our SE link demonstrates the highest 112-Gb/s PAM-4 data rate at a 20-dB channel loss with an energy efficiency of 1.81 pJ/bit.

long-reach link PAM-4 reach-extension module SiGe BiCMOS single-ended (SE) transceiver (TRX)

First

English

CPCI-S

Computer Science ; Engineering

Computer Science, Hardware & Architecture ; Engineering, Electrical & Electronic

WOS:000886608500118

2-s2.0-85141467496

Scopus

1.School of Microelectronics Engineering,Research Center of Integrated Circuits for Next-Generation Communications,Southern University of Science and Technology,Shenzhen,518055,China
2.University of Macau,State-Key Laboratory of Analog and Mixed-Signal VLSI and IME/ECE-FST,Macao

Luo，Xiongshi,You，Xuewei,Fu，Jiahan,et al. A 112-Gb/s Single-Ended PAM-4 Transceiver Front-End for Reach Extension in Long-Reach Link[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2022:497-500.