[time-nuts] Generating a solid PPS from 10Mhz source

Vlad time at patoka.org
Mon Jan 18 12:28:59 EST 2016


Looking to the complex solutions for the frequency divider (CPLD/MCU), I 
start to think about skews and propagation delays. Its not obvious from 
the first glance. But I think such things exists.
It could be interesting to compare the numbers.  Is it worth to consider 
some correction to avoid phase difference between of input and output ?


On 2016-01-18 08:59, cfo wrote:
> On Wed, 13 Jan 2016 09:22:09 +0000, Jerome Blaha wrote:
> 
>> Is there an easy circuit to build that can consistently deliver a 1 
>> PPS
>> from a 10MHz source with excellent resolution and repeatability?
> 
> Ulrich B. has made an AVR 1PPS, for those that uses AVR's instead of 
> PIC's
> AVR PPSDIV 2008-09-06 - in bottom of page.
> http://www.ulrich-bangert.de/html/downloads.html
> 
> The Mega8 version should be easy to port to an Arduino clone
> 
> 
> CFO
> 
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-- 
WBW,

V.P.



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