[time-nuts] Using CPLD/FPGA or similar for frequency

Gregory Maxwell gmaxwell at gmail.com
Thu Jun 11 02:04:45 EDT 2015


On Tue, Jun 9, 2015 at 11:40 AM, Alan Ambrose <alan.ambrose at anagram.net> wrote:
> How about a 1pS resolution TIC? :)
>
> Or a >12 digit frequency counter? :) :)
>
> It's not a proper time-nut project unless there's a nutty element...

Well, how complex? Front end with a fast ADC and make a DSP DMTD device?

In terms of simpler things that (AFAIK) one can't go out and buy:  a
TIC with 4 or 8 inputs would be an interesting piece of time nut
gear.even if it was 'just' 1ns resolution

Surplus lab TICs are easily had but become quite a pile of equipment
when you want to concurrently measure a half dozen oscillators.



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