[time-nuts] Isotemp OCXO

Tom Van Baak tvb at LeapSecond.com
Fri Nov 9 11:49:48 EST 2007


> Hi,
> 
> I've built a GPSDO using an Isotemp 10MHz OCXO (134-10) as available on 
> eB*y a while back.
> 
> The OCXO seems to be very slow to respond to changes in the control 
> voltage.  I assume there is an internal RC filter or similar to improve 
> performance.  However, the datasheet makes no mention of this.  Does 
> anyone know what the time-constant of the control input might be?
> 
> Regards,
> David Smith

David,

How many mV were you changing the EFC? What frequency
difference did you notice? And what resolution counter were
you using to monitor the change?

/tvb




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