plot the slope

Hello,

I would to know how to plot the slope of the Kvco curve with the
Calculator of the Cadence Analog Environment

thanks.

Firas.

 

[Andrew Beckett]

On Mon, 15 Oct 2007 10:21:09 -0000, kallel.firas@gmail.com wrote:

Hello,

I would to know how to plot the slope of the Kvco curve with the
Calculator of the Cadence Analog Environment

thanks.

Firas.

If you run PSS on an oscillator, you can get the fundamental frequency from the
Results->Direct Plot->Main Form form, under pss, then fundamental frequency (or
harmonic frequency - I forget (I'm offline)). Then pick the first harmonic.

If you do this having done a sweep (e.g. of the control voltage) in the PSS,
you'll get a curve of output frequency versus control voltage.

By hitting the add to outputs, you can then double click on the expression in
the output pane in ADE, and find the corresponding calculator expression.

Regards,

Andrew.
--
Andrew Beckett
Senior Solution Architect
Cadence Design Systems, UK.