Hi Douglas,
Blowing up the picture shows some lettering in the white bar at the
bottom of the display (fairly fuzzy). It looks like it is saying 2
volts for the signal with the scope set to 0.5 volts per division.
Bill....WB6BNQ
Douglas Bercich wrote:
I was looking but can't find a V/div anywhere on that. Maybe my old eyes or not
enough coffee. 500mV?
On Apr 16, 2016, at 11:58 PM, Stewart Cobb <[email protected]> wrote:
Here's a scope photo from a PPS driver built exactly to the description in
my earlier post. It's a 74ACT04 in a TSSOP package, with five parallel
outputs driving five 220-ohm resistors (0402 SMT) to form a 50-ohm output.
The photo shows 2 ns rise time for the leading edge of the pulse. The scope
bandwidth is around 1 GHz, so this measurement is pushing its limits. The
pulse looks fairly clean, but with a bit more care in layout and cabling,
it might get even better.
Cheers!
--Stu
<IMG_20160416_213804.jpg>
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