A 7.8Gb/s/pin 1.96pJ/b Compact Single-Ended TRX and CDR with Phase-Difference Modulation for Highly Reflective Memory Interfaces

📋 论文概要

该论文提出了一种用于高反射内存接口的紧凑型单端收发器（TRX）和时钟数据恢复（CDR）电路，采用相位差调制技术，实现了7.8Gb/s/pin的数据速率和1.96pJ/b的能效，有效解决了长尾符号间干扰（ISI）问题。

💡 主要创新点

• 提出相位差调制方案，针对高反射通道优化信号完整性。
• 设计紧凑型单端TRX和CDR，在低功耗下实现高数据率。
• 通过FFE和DFE-IIR组合有效消除长尾ISI，适用于多支路DRAM接口。

🏷 关键词

📄 原文摘要

strongly demanded by the memory industry. Although discontinuous reflective channels like multi-drop DRAM interfaces are less suitable for high data rates than continuous point-to-point channels, their great advantages in high capacity, high throughput, and low latency attract the market [1-3]. However, compact TRXs for low-loss HR channels are more challenging than for high-loss low-reflection (LR) channels. Although the long-tail ISI of a high-loss LR channel can be costefficiently canceled by an FFE with a few taps or a DFE with IIR feedback (DFE-IIR)

👥 作者与机构

Sooeun Lee, Jaeyoung Seo, Kyunghyun Lim, Jaehyun Ko, Jae-Yoon Sim,

Hong-June Park, Byungsub Kim Pohang University of Science and Technology, Pohang, Korea Compact transceivers (TRXs) for highly reflective (HR) interconnects are