Electronic Design

Eye Diagrams, Bathtub Curves, And Bit-Error Rates

On an oscilloscope's eye-pattern diagram, the distance between peak deterministic and random jitter amplitudes (the unit interval, or UI) is often called a "bathtub," which functions as a ...
EDN

Evolution of the eye diagram, Part 2

In part 1, I focused on the evolution of the eye diagram: from individual signal integrity measurements to a BER bathtub that determines eye closure or Tj at a specific BER. The downside to the BER ...
Electronic Design

Eye-Diagram Analysis Speeds DDR SDRAM Validation

Double-data-rate synchronous dynamic random access memory (DDR SDRAM) physical-layer testing is a crucial step in making sure devices comply with the JEDEC specification. The ultimate goal is to ...
Nature

Signal Integrity and Eye Diagram Analysis in High-Speed Interconnects

Signal integrity is a critical design consideration in modern electronic systems, particularly those that depend on high-speed interconnects. As data rates climb and interconnect geometries become ...
EDN

How to take the evil out of eye diagrams

Every scientist, engineer, and technician involved in any form of electronics has used an oscilloscope. Scope displays of amplitude as a function of time provide intuitive and easily interpreted ...