HI i'm having problems trying to simulate the sp paramaters of a filter.
I was searching and i found that the simulations is usign a balun i don't know very well how to put it in my schematic.
I have  the differential filter with the positive and negative input and output signals.
I'm usign cadence for the simulation and the only balun i found is an ideal but does not work for me because it's just the symbol and i do not have the spice model to use it.

Can anyone give a hand with this.

David