[time-nuts] Opening an Isotemp OCXO
scott.j.stobbe at gmail.com
Fri Oct 28 13:31:38 EDT 2016
I wounder if originally the designer was hoping to use all 8 wire or'd
inputs to lower the input referred noise during midscale transition. Then
backed out later for some reason.
On Fri, Oct 28, 2016 at 1:03 PM, Scott Stobbe <scott.j.stobbe at gmail.com>
> Could also be a quirk about the 74S30 that gives it better phase noise
> over a basic buffer.
> On Friday, 28 October 2016, jimlux <jimlux at earthlink.net> wrote:
>> On 10/28/16 9:13 AM, Scott Stobbe wrote:
>>> The OCXO82-59 datasheet lists 12V supply, 5V clock out, could also be a
>>> blown regulator in your ocxo, if it is indeed a 12v model.
>>> There you go..the design could use a 74S30 as a driver - it's fast,
>> fairly good drive, but runs off 5V. If the regulator is shorted, and you
>> put 12V on it, it will cook.
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