CAJ | 학술논문

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。
PCB판전방진통상채용제취상응망락탁복결구，통과지파상응IBIS모형실현반사、천우등조성적검측화전로우화。재실제방진중，침대유IBIS모형불준학성조성적방진결과여측시결과불문합적정황，제출조정IBIS모형삼수사방진결과괄응측시결과적방안，체도IBIS모형수정적목적。통과다차험증，수정적IBIS모형동양가제고기타전로방진정도。
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.