歪斜
公制(单位)
计算机科学
数学
工程类
电信
运营管理
作者
Se-Jung Moon,Jianting Li,Xinjun Zhang,Chien-Ping Kao,Beomtaek Lee,Hansel Dsilva,Jong-Ru Guo
出处
期刊:IEEE Workshop on Signal and Power Integrity
日期:2021-05-10
被引量:2
标识
DOI:10.1109/spi52361.2021.9505188
摘要
In the high-speed differential (HSD) interface design, the intra-pair skew becomes more critical as the link speed is ever increasing beyond 56Gbps+ signaling. The skew within a differential pair (intra-pair skew) deteriorates eye opening at the receiver and degrades the channel performance significantly in HSD signaling. However, industry lacks in an accurate and stable intra-pair skew measurement methodology, which created a significant gap in interconnect testing and qualification. In this paper, the effective intra-pair skew (EIPS) is introduced, which is directly calculated from S-parameter data as a single value without time-domain conversion. The EIPS is verified by correlating to the eye opening and the common-mode noise (CMN) in the HSD link of PCIe Gen5 32Gbps NRZ signaling. The MATLAB script for the EIPS calculation is included in the appendix.
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