I need to determine if there will be high speed effects on the clock signal. I have not done such a simulation before.
I have the IBIS models of the circuit components involved. I think I still need to have PCB track information which will tell me the length of the tracks and perhaps the dielectric constant and I must make sure that the ground plane is continuous under the clock signal.
I have cadence design suite containing allegro design entry cis and allegro design entry hdl with AMS simulator.
I first converted the IBIS models to PSpice since I don't think that IBIS models can be simulated directly in the software tools I have. Now I do not know what to do next.
I realized that while the IBIS model clearly shows many pins of a device, its conversion into PSpice model contains only 1 or 3 pins. If its 1 it will be input, if it is 3 it will be input, output and enable. WHY!?
I have an IBIS model of the clock oscillator. Its conversion into PSpice gave me a single block with a single signal, named input. Actually the customer service person at Cadence did the conversion for me and I checked it myself later by doing it myself once I understood how to use the tool. How can the oscillator PSpice model (generated from its IBIS model) have just 1 signal and that also input, it must be an output right?
So I do not understand why the PSpice models do not have similar interface to the IBIS, I do not understand how to enter the PCB track information into the spice simulator. Do you have any advice?