摘要
PCB板前仿真通常采用提取相应网络拓扑结构,通过指派相应IBIS模型实现反射、串扰等噪声的检测和电路优化。在实际仿真中,针对由IBIS模型不准确性造成的仿真结果与测试结果不吻合的情况,提出调整IBIS模型参数使仿真结果适应测试结果的方案,达到IBIS模型修正的目的。通过多次验证,修正的IBIS模型同样可提高其他电路仿真精度。
Firstly we should get network topology in line simulation of PCB board, and then analyse circuit and optimize noise of reflection and erosstalk from assigning matching IBIS model to the different IC＇s pins. By analyzing the problem of the simulation wave does not match with the test wave, the paper introduces the general framework of the model modification and programming ideas and it can improve other＇s simulation accuracy.
出处
《微型机与应用》
2012年第2期50-52,共3页
Microcomputer & Its Applications
基金
河南省教育厅自然科学研究指导计划项目(2008B510010)
