[time-nuts] Linear voltage regulator hints...
kb8tq at n1k.org
Tue Dec 9 18:10:54 EST 2014
> On Dec 9, 2014, at 11:57 AM, Dan Kemppainen <dan at irtelemetrics.com> wrote:
> Hi All,
> Thanks for the responses. I had a feeling the answer wouldn't be good, but was hoping someone would have a suggestion. There are currently a bunch of regulators in the 'system'. If there were some really good regulator out there, the shotgun approach would apply...
> Of course it is difficult to provide a good reference and pass transistor on the same die, but it was worth asking.
> The thought of temp control of the regulators crossed my mind. Not planning on going there unless I need to. But it was a thought, maybe if all else fails...
> > There are more modern parts with lower close in noise. Linear Technology has a number of them. Your filter caps take out the broadband stuff, close in is all that really matters.
> Got any hints on which ones? Maybe a nice quiet regulator can be 'disciplined' with a better reference.
I believe that if you are trying to regulate the entire OCXO supply, you are doing the wrong thing and chasing the wrong problem ….
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