A 56Gb/s Burst-Mode NRZ Optical Receiver with 6.8ns Power-On and CDR-Lock Time for Adaptive Optical Links in 14nm FinFET CMOS

📋 论文概要

该论文提出了一种56Gb/s的突发模式NRZ光接收机，通过快速上电和CDR锁定技术（6.8ns）实现自适应光链路的细粒度功率门控，以降低数据中心低利用率链路的功耗。

💡 主要创新点

• 提出6.8ns快速上电和CDR锁定技术，支持突发模式操作，实现链路空闲时快速关断和唤醒。
• 采用14nm FinFET工艺设计，在56Gb/s速率下实现低功耗和高能效。
• 针对数据中心链路利用率低的问题，通过功率门控显著降低平均功耗。

🏷 关键词

📄 原文摘要

Christian Menolfi1, Matthias Braendli1, Thomas Morf1, Dan Kuchta3, Lukas Kull1, Marcel Kossel1, Danny Luu1, Mounir Meghelli3, Yusuf Leblebici2, Thomas Toifl1 IBM Research, Ruschlikon, Switzerland EPFL, Lausanne, Switzerland 3 IBM Research, Yorktown Heights, NY 1 2 The increasing bandwidth demand in data-centers requires wireline transceivers supporting >50Gb/s/lane data-rates with low power consumption. Because link utilization in data-centers is <10% for 99% of the links [1] a promising way to reduce power consumption is fine-grained power gating, where the link is powered off during idle time. For rapid on/off functionality to be efficient with short data bursts, the link needs to wake up within a few ns, which is challenging at high speeds. Burst mode operation was previously demonstrated at 25Gb/s with 18.5ns lock-time [2] without power cycling. This work demonstrates a 56Gb/s optical RX with rapid power on/off functionality

👥 作者与机构

Ilter Ozkaya1,2, Alessandro Cevrero1, Pier Andrea Francese1,