On Wed, Mar 13, 2019 at 05:22 PM, Reginald Beardsley wrote:
How do you test these? The 7 pS rise time is a pretty difficult spec if you
want a 10x margin.
With difficulty. I believe there's a method involving three sampling heads looking at each other's kickout pulses and some maths which can be used to evaluate their performance.
The SD-24's pulse generator has a risetime of about 16-17ps, I think, but any faster than that is tricky. The calibrator output on the 11802 (but not the 11801 or 11803/CSA803) has a similarly fast rise time, being made of the same hybrid module.
Chris
