PSpice - Creating Eye Displays Using Probe

In communications work, the eye display is frequently used to illustrate the voltage and timing margins present in a system transmitting digital data. In an eye display, the signal is shown with a time axis that is a small number of data periods long. The signal wraps from the right edge of the display back to the left edge, thereby depicting a large number of overlapping data periods. If a random bit pattern is simulated and then displayed in this way, the required margins can be seen as the opening in the eye on the display.

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