I'm currently testing the eye diagram of the CMLOUT of DS90UB960 deserializer. I'm using an SMA connector to connect the pins to the oscilloscope.
My question is: do i need to probe the reference clock of the deserializer for triggering?
What I previously did is to trigger only the positive (or negative) edge of the CMLOUT waveform, used infinite persistence, and measure the eye parameter of signal. I'd like to clarify if I also need to proce a reference clock to trigger on the reference clock edge. or does my initial procedure correct?
