桂林电子科技大学学报2024，Vol.44Issue(4)：365-371,7.DOI:10.16725/j.1673-808X.202325
一种40 Gbit/s PAM4串行信号接收均衡器
A 40 Gbit/s PAM4 signal receiver equalization system
摘要
Abstract
In order to solve the channel loss problem of four-pulse amplitude modulation serial signal in high-speed transmission,a half-rate decision feedback equalizer is proposed.The equalizer includes a continuous-time linear equalization unit,a limiting unit,a buffer,a half-rate decision feedback equalization unit,a decoder and a bandgap reference.The half-rate decision feedback equaliza-tion unit uses the odd-even dual-channel equalization technology to filter and compensate the signal at high frequency.The half-rate sampling clock effectively improves the signal equalization effect and reduces the power consumption of the equalizer.The equaliz-er is designed based on the 40 nm CMOS process,and the power supply voltage is 1.2 V.The simulation results show that under the environment of 40 Gbit/s data rate and 12.6 dB insertion channel loss,the additional peak-to-peak jitter of the two non-return signals decoded by the equalizer is 4.2 ps,and within 0.1 UI,the power efficiency is 1.98x10-12 J/bit,which has high energy efficiency.关键词
四脉冲幅度调制/串行信号/判决反馈均衡/高频补偿/峰峰抖动Key words
four pulse amplitude modulation/serial signal/decision feedback equalization/high frequency compensation/peak-to-peak jitter分类
信息技术与安全科学引用本文复制引用
徐鹏,施娟,韦雪明,李海鸥,李建华..一种40 Gbit/s PAM4串行信号接收均衡器[J].桂林电子科技大学学报,2024,44(4):365-371,7.基金项目
国家自然科学基金(62164003) （62164003）
广西无线宽带通信与信号处理重点实验室主任基金(GXKL06200131) （GXKL06200131）
广西创新研究团队项目(2018GXNSFGA281004) （2018GXNSFGA281004）
桂林电子科技大学研究生教育创新计划(2022YCX034) （2022YCX034）
