From: -jg on 27 Jul 2010 21:14 On Jul 28, 7:39 am, Ehsan <ehsan.hosse...(a)gmail.com> wrote: > The VCO is a counter which is decremented according to the output of > the loop filter. Err, a Counter is not a VCO ? This will give you a choice of quantized frequency outputs, and the control loop will need to choose a weighted ratio, that averages to your desired frequency. Is the quantize and jitter tolerable in your application ? -jg |