A 60Gb/s NRZ Burst-Mode CDR with Cross-Injection Locking and Flash Phase Detector Achieving 0.13ns Reconfiguration Time in 28nm CMOS

📋 论文概要

本文提出一种用于光子交换网络的60Gb/s NRZ突发模式时钟数据恢复电路，采用交叉注入锁定和闪存相位检测器技术，实现了0.13ns的超快重配置时间，解决了现有BM-CDR重配置时间慢的问题。

💡 主要创新点

• 采用交叉注入锁定技术实现快速频率锁定，避免了传统锁相环的慢速锁定过程。
• 提出闪存相位检测器，能够在极短时间内捕获相位信息，支持突发模式下快速数据恢复。
• 整体架构实现了0.13ns重配置时间，比传统过采样方法（6.8ns）提升两个数量级。

🏷 关键词

📄 原文摘要

bandwidth and thermal power bottlenecks [1]. The increasing demands of the AI-centric data center impose more stringent requirements on low latency and high bandwidth [2]. Rapidly reconfigurable photonic switch networks bypass multi-tier switching layers as shown in Fig. 7.9.1(a), enhancing latency and energy efficiency. Photonic switches operating at ns-scale time have been reported [1-3], demanding burst-mode clock and data recovery (BM-CDR) with similar reconfiguration time. An over-sampling BM-CDR was demonstrated with 6.8ns locking time

👥 作者与机构

Shangjie Wei, Renjie Tang, Chenyao Cao, Yu Su, Kanan Wang, Zhengyang Ye,

Huanfa Sun, Kun Fu, Xiaoyan Gui Xi’an JiaoTong University, Xi’an, China Electrical packet switching based data-center networks are running into