JSSC 2024第9期RF & Wireless28nmPAM-4Neural Network Accelerator

A 2 56 Gbs 078-pJb PAM-4 Crosstalk Cancellation Receiver With Active Crosstalk

一种基于主动串扰消除的2×56 Gb/s PAM-4接收器，能效达0.78 pJ/b。

56 Gb/s PAM-4, BER <1e-10, 24-dB Nyquist loss, 0.78 pJ/b/lane

PAM-4串扰消除MIMO接收器CMOS能效

▸主动串扰提取技术（A-XTCR）提高信号重用效率

▸非对称电感电流模式逻辑（CML）单端转差分转换器减少输出失配

▸改进的垂直和水平眼图开口度分别提升24%和15%

Abstract

A 2 × 56 Gb/s 0.78-pJ/b four pulse-amplitude modulation (PAM-4) single-ended multiple-input multiple-output (MIMO) crosstalk cancellation and signal reutilization (XTCR) receiver (RX) is investigated for medium-reach (MR) backplane communications. An XTCR scheme based on active crosstalk extraction (A-XTCR) is proposed to improve the signal reutilization efficiency of the RX. By adopting the proposed asymmetric-inductor current-mode logic (CML) single-ended- to-differential (S2D) converter, the