18 Apr
2013
18 Apr
'13
7:20 p.m.
I am sure you are correct. I will try to find that
schematic of the frame
buffer card, and see what resistors were used on the ECL source end. Now
you have me wanting to put that long cable back on with the correct
termination!
ECL almost always wants 50 Ohms. There are a few cases when Thevenin
terminations are used if no -2.0 Volt supply is handy, but the
transmission lines will still likely still be 50 Ohm.
--
Will