pancho_hideboo
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No.My question is :If I assume that circuit is unstable ,
why In pre layout simulation for 1.25Ghz it converge ,
but in post layout si,ulation for f=1.25ghz does not converg?
Netlist of pre layout is stable.
However netlist of post layout is unstable, due to newly added L, M and C.
Observe transient simulation results.