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https://designers-guide.org/forum/YaBB.pl Simulators >> RF Simulators >> Power supply coupling modulate VCO https://designers-guide.org/forum/YaBB.pl?num=1303718915 Message started by daxigua179 on Apr 25th, 2011, 1:08am |
Title: Power supply coupling modulate VCO Post by daxigua179 on Apr 25th, 2011, 1:08am I am wondering about whether power supply coupled with a large tone, which will modulate VCO to cause large spur at VCO output, how can I simulate it? I try to use QPSS, but VCO frequency is autonomous, I don't know how to set it as one fund of simulation. |
Title: Re: Power supply coupling modulate VCO Post by Ken Kundert on Apr 25th, 2011, 1:23am Use PAC or PXF. -Ken |
Title: Re: Power supply coupling modulate VCO Post by sheldon on Apr 25th, 2011, 3:13am Daxigua, You might want to try semi-autonomous PSS analysis. It enables you to include a driven signal with an autonomous signal. Semi-autonomous analysis is a large signal analysis. Best Regards, Sheldon |
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