[time-nuts] Re: PRS-10 sawtooth correction with microcontroller
ew
ewkehren at aol.com
Wed Dec 28 01:23:26 UTC 2022
There are 3 IC's. A PIC, a HEX inverter chip and the delay chip. Today I would use a Arduino 114 pin DIL more software experts.and socket.          Â
Bert Kehren Â
In a message dated 12/27/2022 7:43:12 PM Eastern Standard Time, time-nuts at lists.febo.com writes:Â
On 2022-12-27 01:15, Matthias Welwarsky via time-nuts wrote:
> On Montag, 26. Dezember 2022 00:56:08 CET ew via time-nuts wrote:
>> This is all it takes. I would leave the GPS unit separate since so many
>> choices are available including a 9T and 250 and 500 psec chips are readily
>> available now Analog Devices. At the time I did publish it there was no
>> interest today I am to old but be glad to help off list
>>Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Bert Kehren
>
> Indeed the Maxim DS102x series of programmable delay lines was what I found,
> too, and it seemed to fit the bill after a cursory look. Good to see that it
> can actually be used.
I can't see what the other ICs on Bert's board are, but I gather it is
using the timing module's sawtooth error data to set the programmable
delay line. This seems to be a good option if the receiver of the PPS
signal cannot accept adjustment data, but what can it do if the qErr
data indicates the next pulse is going to be late instead of early?
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