Just Ask Happy: Ground Reference Planes


Reading time ( words)

We asked for you to send in your questions for Happy Holden, and you took us up on it! The questions you've posed run the gamut, covering technology, the worldwide fab market, and everything in between. Enjoy.

Q: How important are GND reference planes in signals that are less than 50MHz, since 1/4 wavelength is about 30 inches?

A: GND is an essential part of the circuit. The return path for DC is the lowest resistance, but for the AC part of the signal, it is the lowest inductance.

Take the survey to pose your own question for Happy Holden.

Share

Print


Suggested Items

Book Excerpt: Power Integrity By Example, Chapter 5

07/16/2020 | Fadi Deek, Mentor, a Siemens Business
The following is an excerpt from The Printed Circuit Designer's Guide to... Power Integrity by Example, written by Fadi Deek of Mentor, a Siemens Business. In this free eBook, Deek addresses problematic issues within electronic transmissions, and presents a variety of simulations and analyses in every chapter.

What Is the Proper Role of App Notes?

07/15/2020 | I-Connect007 Editorial Team
There’s a disconnect in the design segment. Some designers say they follow app notes every time, but a growing number of designers approach app notes with a wary eye. Many of the leading voices in the design community have been advising designers not to rely on app notes without running the numbers first. We decided to ask PCB design instructors Rick Hartley and Dan Beeker to help us shine a light on this issue.

Book Excerpt: Signal Integrity by Example

06/11/2020 | I-Connect007 Editorial Team
Editor's note: The following is an excerpt from "The Printed Circuit Designer's Guide to... Signal Integrity by Example," written by Fadi Deek of Mentor, a Siemens Business. Deek explores how to reach effective design solutions and make strong engineering tradeoffs through analysis techniques, best design principles, and software tools to achieve accurate simulations and measurements.



Copyright © 2020 I-Connect007. All rights reserved.