Why does an eye diagram not correlate to a bathtub curve?

The eye diagram is probably the most well-known signal integrity tool because it combines numerous signal integrity characteristics such as rise/fall, overshoot/undershoot, and voltage/jitter into a simple visual of the signal. As additional layers of signal analysis and abstraction are added, there is often the need to perform a sanity check to ensure correlation to the physical layer waveforms. A case in point is understanding how a bathtub curve relates back to the eye diagram.

To read the rest of this article, please visit my Scope Guru on Signal Integrity Blog, on EDN’s site.

Explore posts in the same categories: Signal Integrity

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