What should I specify for the reference node in PSS?

[iVenky]

Hi,

I am running a PSS simulation for an oscillator that gives differential output. I would like to know what I should specify in that case in the oscillation reference node?



Is it okay if I mention the positive output node (voutp) in the oscillaton node box and negative output node (voutm) in the reference node box, as shown above?

Thanks!

 

[pancho_hideboo]

Is it okay if I mention the positive output node (voutp) in the oscillaton node box and negative output node (voutm) in the reference node box, as shown above?

Okay.

See analysis statement in netlist.

I don't know what simulator you use.
However see "spectre -h pss" as unix command, if you use Cadence Spectre.

 

[Nig]

Yes. It is perfectly ok. LC VCOs are differential and it is ok to give the reference node as the negative output node. Results will not be different.