[time-nuts] What's the easiest way to divide by 10 for Thunderbolt reference output?
John Ackermann N8UR
jra at febo.com
Tue Jul 24 14:55:38 UTC 2012
Unfortunately, the TAPR T2-Mini divider
(http://www.tapr.org/kits_t2-mini.html) can't quite get to 1 MHz from 10
MHz with the PIC divider chip due to limitations in the chip architecture.
However, nothing says you couldn't "dead bug" in a decade divider chip
in place of the PIC, and let the T2-Mini provide the input conditioning,
output driver, voltage regulation, connectorization, etc. for you,
making it much a smaller project.
John
----
On 7/24/2012 8:18 AM, Chris Wilson wrote:
>
>
> 24/07/2012 13:14
>
> My Racal Dana 9908 can take a 1 Mhz external reference. Inputting my
> Thunderbolt at 10 MHz works, but shifts the decimal point over. I am
> not sure if this has any other detrimental effects as to accuracy or
> other? What's the easiest way to have a 1 MHz reference from the
> Thunderbolt for this timer / counter please, yet retaining 10 Mhz for
> my other devices that want a 10MHz reference signal? Thanks.
>
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