0 Replies Latest reply on May 31, 2015 10:40 AM by ssupun90@gmail.com

    Eye diagram of transmitter pin

    ssupun90@gmail.com

      Hi,

       

      I simulated a differential trace in hyperlinks and got an unexpected eye diagram at the transmitter side. receiver side eye diagram is good but I could not understand why the transmitter side eye diagram looks so bad. I will attach a image of transmitter side eye diagram. I double checked the stackup and differential impedance of the two traces according to specifications of GTX transceiver module in vertex 7. Can anyone guide me to the solution ?. I'm stuck here for many days now.

                  Figure 1. Fast eye viewer of transmitter side

      Line sim diagram

      stackup

       

      Thank you.