What is eye diagram in communication?
In telecommunication, an eye pattern, also known as an eye diagram, is an oscilloscope display in which a digital signal from a receiver is repetitively sampled and applied to the vertical input, while the data rate is used to trigger the horizontal sweep.
What is eye diagram in DDR?
Simply put, an eye diagram is a data dependent electrical measurement used to evaluate high speed data quality. An eye diagram is measured in the time domain. And as with most time domain electrical measurements, variation in the measurement will occur in every set of samples.