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  1. #1
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    Plotting of VCO output power vs frequency in cadence spectre

    I wish to plot vco output power vs frequency.I executed pss.Then in Direct plot mainform pss is chosen, with in that power is chosen .In specify output resistance field i gave 50 ohm and selected the output differential nets to plot output power.I wish to know whether its the correct procedure to do it.If output power is to be plotted with control voltage od tuning vco,what is the procedure required?

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  2. #2
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    Re: Plotting of VCO output power vs frequency in cadence spectre

    Sweep Vtune and look at Vout in dBm for first harmonic ( or whatsoever..) ..very simple.



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  3. #3
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    Re: Plotting of VCO output power vs frequency in cadence spectre

    To plot output power vs frequency, In directplot main form I gave 50 ohm resistance..is that ok..since characteisticimpeance is 50 phm.I am working at Ghz.



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