Hi Hans-Georg,
On 2022-05-28 17:04, Hans-Georg Lehnard via time-nuts wrote:
Hello Magnus,
I understood that simply sampling 3 channels fast and averaging does not
solve all the problems ;-).
Sure, I just want to illustrate how various approaches could allow you
to get the most out of the hardware you have.
I have a HP E740A time interval analyzer that I might use for my
oscillators.
The HP-TIA has 50ps resolution, can sample 10 Mhz directly but has only
512K sample memory. For longer recordings I can use the histogram
function. I still need to do some work on my software for that, but that
might be the fastest way to get results.
Does the E1740A have a high speed time-stamping port? The 5371A and
5372A have that as an option, so if one could have some suitable
hardware process on those time-stamps, it would be something.
Attached is a picture of my HP10811 and another one that someone made
for me as a comparison to other TIAs.
The third pic shows another meter i have with TLV3501 and TDC7200
without averaging compared to an FA2.
I will keep trying with the TDC7200 and maybe better with the LTC6957
and only one channel.
Yes, to try different approaches. The LTC6957 is a very cool little chip.
Cheers,
Magnus
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