[time-nuts] Question about the PLL of Trimble Thunderbold

ew ewkehren at aol.com
Thu Oct 25 09:26:22 EDT 2018


There are a couple of questions that have to be answereda what do you want to synchronize, 1 pps , 10 MHz or bothb what will you distribute 1 pps, 10 MHz or bothc what accuracy are you looking ford off the shelf or own assembly
e how cost sensitiveBert Kehren
In a message dated 10/24/2018 5:10:46 PM Eastern Standard Time, vantta at hotmail.com writes:


Hello everyone ! I am new in here. I got referred to time-nuts by a colleague, and after reading a bit, I think that is the right place for this kind of questions :)
I have in mind a project which consists in synchronizing two or more stable clocks (OCXO) disciplined by GPS.
However, would be great to have the option to disable the GPS on both sides at a given time and to synchronize them in a Master-Slave or directly by means of a protocol they could correct each other and synchronize themselves.
After some research, the Trimble Thunderbold board got my attention, as has everything I need to get the project started.
Before getting a pair of the boards, on the datasheet is explained that one can get the unit on a disconnected state and adjust the ADC which drives the OCXO directly (that’s one of the desired capabilities !).
The question is: does anybody know if the phase difference (input of the PLL) can be read, in order to know how to steer the ADC ??
Alternatively, could you please suggest another board that would fulfil the following?
- GPS can be disabled.- has a serial com port, so commands can be sent to the unit and information can be retrieved.- provides 1PPS and 10MHz signals.
Thank you very much for your attention,Ferran_______________________________________________time-nuts mailing list -- time-nuts at lists.febo.comTo unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.comand follow the instructions there.


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