Ansys EYE ploting

- August 23, 2023 at 11:10 am
  
  Karthik Bhat
  Subscriber
  
  Hi Team,
  we are doing system level SI analysis and we see that during our EYE capture the voltage in the Y-axis is starting at 0V and going down to -1000mV, we are not able to trace why this is going to negative side kindly anyone support us on the same.
- August 24, 2023 at 10:40 am
  
  GioF
  Ansys Employee
  
  Hi Karthik Bhat,
  It seems that you are plotting an eye diagram for a PRBS source. Change the Pulse Voltage of your source to a positive value.
- August 24, 2023 at 5:57 pm
  
  Dan Dvorscak
  Ansys Employee
  
  That looks like a transient simulation. Is there a DC blocking cap present?