An 800MS/s 10b/13b Receiver for 10GBASE-T Ethernet in 28nm CMOS

📋 论文概要

本文提出一款用于10GBASE-T以太网的接收器，采用28nm CMOS工艺，支持800MS/s采样率和10b/13b双模式分辨率，以适应不同长度UTP电缆的性能需求，解决了长电缆下高信噪比与短电缆下低功耗的权衡问题。

💡 主要创新点

• 提出10b/13b双模式分辨率架构，根据电缆长度动态切换，在长电缆时使用13b高分辨率保证信号质量，短电缆时使用10b低分辨率降低功耗。
• 在28nm CMOS工艺下实现800MS/s高速采样，通过电路优化达到高能效和面积效率。

📄 原文摘要

Nitz Saputra3, Qiongna Zhang1, Jeff Riley1, Han Yan1, Mattia Introini1, Sijia Wang1, Christopher M. Ward1, Jan Westra1, Jiansong Wan1, Klaas Bult1 Broadcom, Bunnik, The Netherlands, Broadcom, Irvine, CA, 3Qualcomm, San Diego, CA 1 2 The IEEE 802.3an standard describes full-duplex 10Gb/s Ethernet transmission over four pairs of up to 100m UTP cable. The performance required from the analog front end (AFE) of a 10GBASE-T Ethernet transceiver strongly depends on the length of the cable connected to it. Maximum-length cables require the highest performance, and hence, determine the worst-case power dissipation of the transceiver. In practice, however, the vast majority of cable lengths used are below 30m. For these shorter cables, the standard specifies the transmitted power level to be lowered, inherently leading to a reduction in power consumption of the transmitter (TX). In most designs, the power consumption

👥 作者与机构

Jan Mulder1, Davide Vecchi1, Yi Ke1, Stefano Bozzola1, Mark Core2,