[time-nuts] VC-OCXO EFC stability.

Bob Stewart bob at evoria.net
Tue Jan 6 20:09:08 EST 2015


Does your oscillator have a VRef output?  If so, use that instead of a regulator.  It's cleaner and usually temperature compensated.

Bob

      From: ct1dmk <ct1dmk at gmail.com>
 To: Discussion of precise time and frequency measurement <time-nuts at febo.com> 
 Sent: Tuesday, January 6, 2015 6:40 PM
 Subject: [time-nuts] VC-OCXO EFC stability.
   
Hi,

With a multiturn pot and a 78L05 I can get a 0 to 5V EFC to tune
an OCXO on desired freq. But... maybe other voltage regulators
or other scheme have better temp stability than the old 78L05.

Before I crawl lost in new'ish fancy regulator land does anybody
know the killer solution/IC for this job ?

Luis Cupido
ct1dmk.


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