[time-nuts] eBay Giveaway Vectron OCXOs
Peter Gottlieb
nerd at verizon.net
Fri Dec 23 19:57:03 UTC 2011
A search of the Vectron site for OCO500 (which is on my unit) brings up
a datasheet which references that as a "replaced" unit.
http://www.vectron.com/products/ocxo/c4550.pdf
Shows there are 5, 12 and 3.3 volt options. I don't see where 4.8 volts
is a reference output voltage, the closest is 5 volts with the 12 volt
unit. I would put the unit on a variable bench supply and slowly raise
the input voltage to see where the reference stops increasing but I
would hazard a guess that it is a 12 volt unit. If you increase the
supply to 5.5 etc then in that case you would see the reference stop
increasing at 5.0.
Peter
On 12/23/2011 2:42 PM, Magnus Danielson wrote:
> On 12/23/2011 08:26 PM, SAIDJACK at aol.com wrote:
>> Running it at 5V with a Ref out at 4.8V would seem too close. Maybe
>> it's a
>> 12V part?
>>
>> If nothing else this could be a very stable, ovenized 4.8V lab
>> reference
>> source..
>>
>> Is anyone planning to monitor the aging/stability/noise of this
>> reference?
>
> My guess would be for 12 V, but 5V would be one to try.
>
> Measuring the frequency stability on 5V would be one thing to try.
>
> Cheers,
> Magnus
>
>> bye,
>> Said
>>
>>
>> In a message dated 12/23/2011 07:28:34 Pacific Standard Time,
>> danrae at verizon.net writes:
>>
>> Thanks for all the responses. A quick check before breakfast shows
>> that
>> mine would seem to be for 5 Volts since the power consumption at that
>> input agrees with the data sheet referenced; the current peaks at 0.95 A
>> warming up and 0.13 A warm. Reference V out is 4.8 V.
>>
>> Dan
>>
>>
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