signal integrity

This article briefly describes the most important pre-layout elements to look for when selecting a SI/PI software simulation package.

Are you just getting into software simulation and feeling a little overwhelmed with all the new jargon? This brief article will explain some of the most common terms used in the very exciting world of EMC/Signal Integrity simulation software, all in one location.

Understanding skin effect and surface currents saves us a lot of time and cost in the design of our product’s shielding and filtering, especially for tough EMC standards such as automotive, military or aerospace.

When two circuits share a return path with non-zero impedance, the result is common-impedance coupling — and real EMC problems. This foundations piece breaks down the theory with circuit models, then backs it up with lab measurements showing how ground impedance affects audio, video, and high-current circuits sharing a common return path.

When switches interrupt current through inductive loads, the results can be destructive — high-voltage spikes, HF ringing, and arcing that threatens both components and nearby circuits. This article breaks down the physics behind these transients and demonstrates practical, low-cost protection strategies.

This article is a brief guide to identifying and troubleshooting Signal Integrity issues.

A 1988 study of current distribution in printed circuit boards reveals how return‑current paths, ground‑plane impedance, and trace coupling drive EMI and signal‑integrity issues. Its insights on low‑impedance ground structures remain foundational for today’s high‑speed digital designs.

Let’s do a comparison of EMI (electromagnetic interference) design and signal integrity. EMI focuses...

Agilent Technologies Inc. introduced two new high-performance portable oscilloscope series deploying next-generation oscilloscope technology....