[time-nuts] Fury Interface Board: How about TI OPA277? -- Very Long Reply
SAIDJACK at aol.com
SAIDJACK at aol.com
Sat Nov 3 18:59:16 UTC 2007
In a message dated 11/3/2007 06:16:00 Pacific Daylight Time,
xaos at darksmile.net writes:
>3. Said said, that a thermistor should be placed between the Fury OCXO
>VCC and ground. Since I will be
> breaking out these signals to the interface board, I assume I can
>connect the thermistor there.
> Am I missing something there?
>4. Should I be remote sensing the +12V, (from Fury OCXO connection) in
>order to track my +12V power supply?
> I get the impression that the Fury controls this voltage as well. Am
>I correct in this?
> Bruce suggested this and it sounds like a good idea.
>Well, that's all I can think of now. I've been up all night working on
>this and I need some sleep.
Hi George,
using a thermistor (thermally connected to the OCXO) on the Fury's OCXO
power pins is an option to try to improve stability by having Fury measure and
compensate for temperature coefficients in the OCXO.
Typically the Fury would measure the OCXO's power-supply current-variation
versus temperature. A thermistor may work as a replacement sensor for external
OCXO's.
Thanks for your efforts on this!
Bye,
Said
************************************** See what's new at http://www.aol.com
More information about the Time-nuts_lists.febo.com
mailing list