当今电子产品不断更新换代,性能不断提升,需要处理的数据量不断增大,信号的速度也随之越来越快,印刷电路板(PCB)的面积反而越来越小。这就导致信号线的密度越来越大,不同信号线之间信号就会出现相互影响,也就是串扰。针对高速数字通信系统中传输链路之间的信号间串扰,建立等效电路模型,推导出远端串扰噪音的计算公式,提出改善措施,并最终使用HSPICE进行了仿真验证。 Today’s electronic products are constantly being replaced, performance is constantly improving, the amount of data that needs to be processed is increasing, the speed of signals is also getting faster and faster, and the area of ​​printed circuit boards (PCB) is getting smaller and smaller. This leads to the increasing density of the signal lines, the signals between different signal lines will interact with each other, that is, crosstalk. Aiming at the signal crosstalk between transmission links in high-speed digital communication system, an equivalent circuit model is established and the calculation formula of far-end crosstalk noise is deduced. The improvement measures are proposed and finally verified by HSPICE.