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Cdence PSS+PAC analyses - i have to plot the impedence

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Cdence PSS+PAC analyses

Hello,
I have to evaluate the input impedence of a time variant device, to make this i used PSS+PAC, after the simulation in direct plot with pac analyses i can plot the current or the voltage, but i have to plot the impedence...i thought to use calculator and the command vf and if , can i use this command also for pac analysis?? However if i use this command i see anything...

Help me please...
 

Re: Cdence PSS+PAC analyses

Hi,

Have you tried giving equation while punching the output in the spice deck itself? If your simulator allows this, you can directly plot the impedance.
 

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