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Successful signal integrity analysis depends on a fundamental concept: impedance. Without a thorough understanding of the impedance values that a signal encounters along the way, designers cannot maintain good signal quality from source to receiver.
This paper defines the difference between characteristic and instantaneous impedance and explores the essential principles of impedance and design-controlled impedance.
To download this Mentor white paper, click here.
Yuriy Shlepnev, Simberian
A typical PCB design usually starts with the material selection and stackup definition—the stackup planning or design exploration stage. How reliable are the data provided by the material vendors and PCB manufacturers? Can we use these data to predict trace width and spacing for the target trace impedance or to calculate delays or evaluate the loss budget?
Andy Shaughnessy, PCB Design007
Every January, I like to go back through the last year and see which articles had the highest number of views. They're usually the articles that bring you PCB design and industry information that's relevant to your job. Check out the most-read PCB design articles from 2016.
Abby Monaco, Intercept Technology
About a year ago, I was assigned a new project: become an expert in impedance, more or less. I had no idea how much this research would bring out the nerd in me. Even if you don’t typically design controlled-impedance circuit boards, you probably will eventually. Read on!