Hello,

I am not sure about what means peak and average IR drop mode analysis in Encounter. What of these two analysis modes should be considered for power plan optimization?

I have a small block design (5K gates) operating at very low frequency (640 KHz) and there is a big difference between the results of these two analysis modes:

worst IR drop average analysis: 9.8035e-05 v

worst IR drop peak analysis: 4.3088e-01 v

Is average analysis
frequency dependent? But voltage drop is not event dependent and so
can cause timing problems also at low frequencies?

Thanks in advance.

*Originally posted in cdnusers.org by*

**clsantos**