VCO Swing definitions

Hi edaboarders,

A Collegue told me that true in both cases the swing is 1 V?
According to my undertanding
The swing of the sine wave of the figure 1 is Swing1=1V;
The swing of the sine wave of the figure 2 is Swing2=2V;

Please correct me If I'm wrong:

By definition swing means, move to and from an overhead limits.
So, in both cases the swing is 2V.
Or in engineering language, 2V peak-to-peak.

Thanks vfone.
But for VCO isn't the swing the peak from the average?
In the Case of figure 2 and genrally speaking isn't the swing Vdd/2 ?

No. The total swing is from peak to peak.