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Component simulations cannot be properly compared to measurements without de-embedding the test fixture—here’s step-by-step instructions to get the job done well.
We have to use enough capacitors so that the PDN functions properly. At the same time, to keep cost and size in check, we want to avoid overdesign and not use capacitors unnecessarily. Read on for advice on how to find the balance.
Get a basic EM understanding of resonant behavior, a method for quickly determining resonant frequencies, and a secondary set of metrics to evaluate if a frequency is excited or not.
If you are looking for a good book to help you understand PDN design, then this book is a good place to start. Here's a synopsis of what you can learn in this mammoth volume.
Larry Smith and I address this question in the preface to our new book. We found this question to be a little like the story of the five blind people and the elephant. They each are asked, what is an elephant? Depending on what part they were facing, imagined the elephant as that feature: a wall, a rope, a tree trunk, etc.
This method enables designers to create 25+ GT/s vias quickly, deliberately, and with much less uncertainty than the traditional technique. Read on to find out more.
Glass-weave periodic loading can introduce additional insertion loss at midrange frequencies. This article characterizes these additional losses using actual glass weave cross-sectional data. It also shows how trace route angle and length can set up different secondary resonance patterns.
If you’re looking for a handbook on SI characterization techniques, or more specifically, TDR and VNA measurements, check out the second edition of this popular book.
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