[sdiy] HF VCOs and tracking problems

Neil Johnson neil.johnson97 at ntlworld.com
Mon Nov 12 17:41:28 CET 2012


On 12 November 2012 14:41, Ian Fritz <ijfritz at comcast.net> wrote:
> At 04:40 AM 11/12/2012, Neil Johnson wrote:
>>
>> That said, the circuits in Jim's V-to-Fs are ramp-ish, but with care
>> around the reset circuit (the 1MHz one has its core C of a few picoF).
>> Also note the switched capacitor servoing the loop to ensure stability.
>
>
> Also note the 350 ms settling time.  :-)
>
> Ian

In my defence, Karl didn't mention any requirements for settling time,
only linearity for an oscillator in the 100's of kHz.

:-)

Neil
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