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Simulators >> Circuit Simulators >> Hurry, how to use the netlist-based/spice-based spectrerf simulation.
https://designers-guide.org/forum/YaBB.pl?num=1582730069

Message started by Jacki on Feb 26^th, 2020, 7:14am

Title: Hurry, how to use the netlist-based/spice-based spectrerf simulation.
Post by Jacki on Feb 26^th, 2020, 7:14am

Hi,

We are spoiled too much by Cadence, now I have no idea how to use the netlist-based/spice-based solution to simulation VCO by using SpectreRF. All of the tutorials from internet is graphic solution, I wonder who can give me an example with the netlist simulation, or any tutorial of the SpectreRF syntax in the netlist?
Appreciate very much.

Title: Re: Hurry, how to use the netlist-based/spice-based spectrerf simulation.
Post by Ken Kundert on Feb 27^th, 2020, 12:34am

See listing 1 in Simulating Switched-Capacitor Circuits with Spectre-RF. Or, if you are into Python and what to see an example of the whole process from generating the netlist, through simulating, to extracting and plotting the waveforms, see Flicker Noise

-Ken

Title: Re: Hurry, how to use the netlist-based/spice-based spectrerf simulation.
Post by Frank Wiedmann on Feb 28^th, 2020, 3:16am

Hi Ken,

I'm not sure why you changed the name of the voltage source from Vin to Vmod in runPnoise, but it breaks the simulation unless you also change the oprobe statements.

Regards,
Frank

Title: Re: Hurry, how to use the netlist-based/spice-based spectrerf simulation.
Post by Ken Kundert on Mar 2^nd, 2020, 9:47pm

No particular reason other than I think it makes it a bit more obvious what the purpose of the source is. I think I found the problem myself after a day or so and fixed it. Thanks for reporting it.

-Ken

Title: Re: Hurry, how to use the netlist-based/spice-based spectrerf simulation.
Post by Frank Wiedmann on Mar 3^rd, 2020, 2:37am

The pnoise.scs file still has the problem (which is not a real issue because runPnoise overwrites it).

Title: Re: Hurry, how to use the netlist-based/spice-based spectrerf simulation.
Post by Ken Kundert on Mar 3^rd, 2020, 3:17pm

Whoops. Fixed now. Thanks Frank!