[ntp:questions] Thunderbolt at NTP ref clock.

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Fri Aug 2 01:46:21 UTC 2013


David Lord wrote:> DaveB wrote:
>> Took a look at the TB's PPS signal last night, & yes, 20ns duration, and
>> though it can be turned -ve (as in 0 to -5V) or off, the width can't be
>> changed.
>>
>> Too many toys, so little time. :)
>
> a simple monostable can give an extended pulse long enough to
> be caught by DCD on a serial port. Yes it causes a delay but
> not likely to be more than a few us.

<http://www.ti.com/lit/an/sdla006a/sdla006a.pdf>


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