[sdiy] Possible to Hard-Sync R. Schmitz CMOS VCO???

[cs e]

So, to sync two of these CMOS VCOs - I should take the output from the
'schmitt trigger' section (2nd inverter output) and inject it to the
input of the 'schmitt trigger' section (1st inverter) of the other
VCO?

Thanks guys.

On 11/3/09, Gerard Alink <gerard.alink at xs4all.nl> wrote:
> Looking at the schematic, I would say that the "Schmitt Trigger" takes
> care of resetting the slope (also see the circuit description), so or-ing
> that with an input logical pulse (from another oscillator's schmitt trigger
> or comparator circuit that takes care of resetting that oscillator's slope)
> might be the way to go.
>
> Regards, Gerard
>
> On Tue, 3 Nov 2009 10:43:53 +0000, cheater cheater <cheater00 at gmail.com>
> wrote:
>> seconded
>>
>> On Tue, Nov 3, 2009 at 00:41, cs e <modulemania at gmail.com> wrote:
>>> How would someone go about adding hard-sync to Rene Schmitz's CMOS VCO
>>> (as seen here, in beautiful detail:
>>> http://www.uni-bonn.de/~uzs159/vco4069.html   ?
>>>
>>> I would appreciate to read anyone's process/analysis of determining
>>> the possibility of adding sync; and of course I would love to read how
>>> to do it ;-)
>>>
>>> Thanks
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>>>
>>
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