A 200-Gb/s PAM-4 Feedforward Linear Equalizer with Multiple-Peaking and Fixed Maximum Peaking Frequencies in 130nm SiGe BiCMOS

Zhengzhe Jia1; Taiyang Fan1; Dongfan Xu1; Dongshen Zhan1; Linxuan Hu1; Zhengyang Zhang1; Yanchao Wang1; Chun-Zhang Chen2; Xuhui Liu2; Hanming Wu2; Quan Pan2

10.1109/ICTA56932.2022.9963128

2022

2831-395X

978-1-6654-9270-6

2022 IEEE International Conference on Integrated Circuits, Technologies and Applications (ICTA)

104-105

28-30 Oct. 2022

Xi'an, China

This paper presents a peak-tunable PAM-4 linear equalizer for 200-Gb/s communication in 130-nm SiGe BiCMOS process. It consists of two stage continuous-time linear equalizers (CTLE) and an output driver. The feedforward and degeneration techniques are employed to realize multiple peaks at high, middle and low frequency points, respectively. Moreover, the equalizer can reach a maximum 20.6-dB compensation with a fixed peaking frequency at 51 GHz. The simulation results show that with an 18-dB lossy channel, the proposed equalizer provides a 53-GHz bandwidth and 200-Gb/s PAM-4 eye. It consumes 159-mW power under 2.8/3.3-V supply and achieves 0.80-pJ/bit power efficiency.

CTLE feedforward technique linear equalizer 200Gb/s PAM-4 signal

第一

IEEE

1.School of Microelectronics, Southern University of Science and Technology, Shenzhen, China
2.Peng Cheng Laboratory, Shenzhen, China

Zhengzhe Jia,Taiyang Fan,Dongfan Xu,et al. A 200-Gb/s PAM-4 Feedforward Linear Equalizer with Multiple-Peaking and Fixed Maximum Peaking Frequencies in 130nm SiGe BiCMOS[C],2022:104-105.