I am trying to determine the output impedance of a buffer using the run terminator wizard. The expected answer is 150 ohm. But the terminator says it's 50 ohms. See attachment.
Assuming output impedance is 150 ohms, I have a 168 ohm tx line (also tried with a 168 ohm termination to ground before the load).
The series resistor should be 18 ohms, but it's 56 ohms with a bunch of warnings --
Warning: driver impedance is rather large.
Wide driver impedance tolerance may hinder termination.