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https://designers-guide.org/forum/YaBB.pl Simulators >> RF Simulators >> about pss simulaiton for VCO https://designers-guide.org/forum/YaBB.pl?num=1242929797 Message started by lily on May 21st, 2009, 11:16am |
Title: about pss simulaiton for VCO Post by lily on May 21st, 2009, 11:16am Hi, I am trying to get the time domain steady state solution from the pss simulation for VCO. Is there any way that I can control the time points in the solution, say I want to get more time points than default solution. Thanks! |
Title: Re: about pss simulaiton for VCO Post by pancho_hideboo on May 22nd, 2009, 5:13am lily wrote on May 21st, 2009, 11:16am:
There are many simulators which have analysis called as PSS. If you mean PSS analysis of Cadence Spectre, set "maxstep" parameter for PSS statement. Enter "spectre -h pss" in Unix command line, you can see many parameters for PSS. |
Title: Re: about pss simulaiton for VCO Post by sheldon on May 22nd, 2009, 6:40am Lily, Can you explain why you need more time points? If you think that you want to lower the PSS noise floor, then consider tightening the error preset. For example use the conservative error preset if you are using the default error preset. If you have an issue with small signal analysis, then it might be best to set maxacfreq appropriately. Best Regards, Sheldon |
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