Re: Practical VCO

redhat wrote: 
so, how does anyone design a vco? if the equations of the resonator is
for ideal conditions, the parasitic capacitance has a large effect on
the resonator; how to take into account the parasitic capacitances
effect?


Well, either by simulating with actual parts, meaning
including parasitics, or by tweaking the circuit
afterwards. I suggest to do a simulation with actual
parts "to come close" and tweaking afterwards. Don't
forget to spend 1nH per mm of copper trace.

IMO, the gain from getting a cheaper VCO than available
as actual part has its price that ought to be paid back
by the numbers of units sold.

Rene
--
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
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