A 6Gb/s RX Equalizer Adapted Using Direct Measurement of the Equalizer Output Amplitude

📋 论文概要

提出一种6Gb/s接收均衡器，通过直接测量均衡器输出幅度来实现自适应均衡，以补偿高速串行通信中的码间干扰（ISI），适用于PCB或背板信道。

💡 主要创新点

• 采用直接测量均衡器输出幅度的方式来自适应调整均衡系数，无需复杂算法或参考信号。
• 针对6Gb/s以上高速数据通信，有效补偿PCB/背板传输线的低通特性引起的ISI。
• 实现了接收均衡器的自优化，适用于多通道等需要自适应调整的场景。

🏷 关键词

📄 原文摘要

are the main challenges for robust communication. Reflection in transmission line (T-line) can be reduced by proper Tline design. But ISI stems from LPF characteristics of the actual Tline and becomes severe as either the data rate or the length of the T-line increases. Hence, ISI compensation is critical in over 6Gb/s (166ps bit-time) data communication using PCB or backplane. Receiver equalizer (RxEQ) is necessary for compensation of ISI. Selfoptimization of RxEQ is also the key technology. For example, in case of multi-lane data communication, the trace length of each T-line or cable may differ from lane to lane. In such a condition, selfoptimization of RxEQ is necessary to decrease ISI on each trace condition. DFE is commonly used for compensation of ISI. However, at data

👥 作者与机构

H. Uchiki1, Y. Ota1, M. Tani2, Y. Hayakawa1, K. Asahina1, 1

Renesas Technology, Itami, Japan, 2Renesas Design, Itami, Japan In inter-chip communication over PCB or backplane, avoiding reflection and ISI