[SOLVED] how to plot vco frquency with variation of control voltage

[subbareddy434]

solved: how to plot vco frquency with variation of control voltage

i designed cross coupled lc-vco with center frequency of 2.7 Ghz. i want to know how vco frequency varies with control voltage .for that which analysis i have to do..
please help...

 

[sarge]

You can do it from tran - with parametric sweep or simple graph in any spreadsheet.
Also it is possible to set control voltage as parameter in PSS, after simulation plot frequency directly from "Direct plot" form.

 

[subbareddy434]

thanks for reply..
i have done the procedure what ever you told ..but after i got struck at which option i have to choose to get vco curve
here i am attached analysis window

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attached image

 

[sarge]

Choose Harmonic Frequency click on first harmonic, for example:

 

[subbareddy434]

thanks a lot...
i got vco curve...

 

[venkateshjuturu]

Re: solved: how to plot vco frquency with variation of control voltage

i designed cross coupled lc-vco with center frequency of 2.7 Ghz. i want to know how vco frequency varies with control voltage .for that which analysis i have to do..
please help...

may i know the type of inductor you used in the topology and which version of cadence is it is

thanks in advance