Demian Martin wrote:
At some point I'll re-run tempco and jitter measurements of the dividers
and 1PPS distribution amps >I have here.
Last time I used a 5370B and a SR620. This time I'd like to try a
Wavecrest. If someone on the list >has done this already can you let me
know?
Thanks,
/tvb
I have read through the data sheets on all of these and am very interested
in the differences in reality. The Wavecrest claims 2 pS Jitter measurement.
The HP has a single shot resolution of 20 pS, The SR620 is 25 pS and the
Wavecrest specs say 20 pS. How does the Wavecrest get .1X minimum Jitter
measurement of the others with the same resolution? Can that trick be
applied to the others?
The resolution of the DTS-207x series is 800 fs. Getting about 2 ps RMS
trigger jitter is achievable with a good source. Slew-rate limits the
noise just as with any other trigger jitter. Yes, the Wavecrest blows
the SR-620 and HP5370A/B out of the water. The Wavecrests is a bit more
resistive to operate, but when you convinced them they do their job well.
Cheers,
Magnus
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