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stb Ocean/Skill examples

dlbro

Does anyone have any examples of using the stability analysis (stb) Sprectre tool in Ocean/Skill? I've done extensive scripting in transient, AC, DC, noise, pnoise, etc... but this is the first time I've tried stb. Running stb is easy, I've seen some stuff on how to do phase margin and gain margin, but how do I plot the gain and the phase? I've searched Cadence and Source link and the internet to no avail. Is there any equivalent to VT(), VF(), VS() for stb?

Thanks in advance,

dlb

Parents

  • Hi, Andrew

        I understand this skill you provided.And it worked well in cadence ADE with spectre.

        Here is the problem,now we have HSPICE_2010 intergrated into ADE.When i repeat the process above,i  found that only Loop Gain with magnitude and phase have "add to outputs",not Gain Margin or Phase Margin.How can I get the right outputs of GM ,PM so i can have the GM&PM number after simulation just like spectre did?

     

     regards

     yuanzy

Reply

  • Hi, Andrew

        I understand this skill you provided.And it worked well in cadence ADE with spectre.

        Here is the problem,now we have HSPICE_2010 intergrated into ADE.When i repeat the process above,i  found that only Loop Gain with magnitude and phase have "add to outputs",not Gain Margin or Phase Margin.How can I get the right outputs of GM ,PM so i can have the GM&PM number after simulation just like spectre did?

     

     regards

     yuanzy

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