Author Topic: Pinout needed: Isotemp OCXO 143-141  (Read 4526 times)

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Online CraigD73Topic starter

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Pinout needed: Isotemp OCXO 143-141
« on: March 28, 2018, 09:33:43 pm »
Hi, I am looking for a data sheet or the pinout for an Isotemp OCXO 143-141  10Mhz oscillator.

A web search turned up mostly conflicting information, seems Isotemp wasn't all the diligent about keeping there pin assignment constant over the various models. I would hate to release the blue smoke trying to figure it out.

Thanks,
Craig
 

Offline chuckb

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Re: Pinout needed: Isotemp OCXO 143-141
« Reply #1 on: March 28, 2018, 11:09:22 pm »
I did not have a data sheet but a little searching on _bay provided the attached picture. A data sheet from another seller indicated the top LH pin is the VCO input and the top RH pin is the reference voltage (4V, 4k max load) for the frequency adjustment pot, if needed.

Some specs
700ma initial current draw at 5VDC
CMOS output levels

Hope this helps.
 

Offline chuckb

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Re: Pinout needed: Isotemp OCXO 143-141
« Reply #2 on: March 28, 2018, 11:13:19 pm »
And here's a hidden surprise.
 

Offline Cerebus

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Re: Pinout needed: Isotemp OCXO 143-141
« Reply #3 on: March 29, 2018, 02:03:50 am »
I haven't been able to find a datasheet for the 143-141, evidently it's a custom order out of the 143 series. Here's the series datasheet. The 143 follows the 'A" pinout.
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 
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