Hej
We have a problem with the DS90C031 ad seen in the picture below
The red and the green lines are the outputs of one of the LVDS transmitters and it can be seen that the output swing is only around 100 mV and not the expected 350 mV. In addition the two signals are offset, and not placed on top of each other as expected (forming an “eye-diagram”). The three others transmitters in the part are working fine.
What we are trying to figure out is what could have caused this
an ESD error?
incorrect grounding of units?
accidental output overload?
We worry that whatever have caused this have also caused other errors or possibly an error in the redundant unit that is not yet visible.
