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Ansys Learning Forum Forums AIS China 电子产品 IBIS建模完成时如何跟原始SPICE进行对比 Reply To: IBIS建模完成时如何跟原始SPICE进行对比

Yang Zhao
Ansys Employee

IBIS Full Modeling Flow中的Step6可以运行Validation跑出IBIS模型端接时的波形,可以跟原始SPICE跑的WMF进行对比。但是想要量化的差异值,就需要计算FOM值。2023R2之前的版本FOM值的计算需要用户手动构建50ohm端接、Open等条件的波形,然后导入SPISimReport Figure of Merit工具中进行计算。

2023R2版本在流程中增加了FOM计算,用户只需要在Option中勾选FOM计算的选项即可。