Hey,
I am currently using the ADS6224 in our new design and am starting to do verification testing and am seeing larger than specified voltage on the LVDS data lines from the ADC. I have attached one of the scope pictures of the clock line. The data lines are the same.
As you can see, I am getting 850mv(including under and overshoot) measured across a 100ohm termination resistor. I am using a high speed differential probe.The datasheet states I should have 3.5mA across a 100ohm resistor or 350mv. I can't figure out why this part is putting out so much voltage. All the register setting are the default settings - I am not in double current mode.
Would you expect 350mV swing or does 750mV make sense?
Cheers
Calum