Download Your Copy of the PDN Resonance Calculator Spreadsheet

In the recently released book Larry Smith and I wrote, Principles of Power Integrity- Simplified, we offered a spreadsheet to go along with the book, especially the last chapter. You can download your copy of it by clicking here.

We advocate first doing analysis based on simple estimates using rules of thumb, then explore design space using analytical approximations and spreadsheets. Finally, to fill in the details, use a simulation tool.

This is the only real way of practicing safe simulation, which is really about applying rule #9. If you ever encounter one of my students, ask them what rule #9 is and they should immediately say, “Never do a measurement or simulation without first anticipating what you expect to see.” It’s by applying your engineering judgement based on rules of thumb and approximations that you know what to expect to see.

If my student does not give you the correct answer, please let me know and I will get into their University records and retroactively change their grade.

One of the principles we wanted to highlight in our book is how powerful simple models are in accurately predicting performance. You can often answer many of the bog picture questions using simple approximations. When design decisions interact, a spreadsheet is an invaluable tool to explore the tradeoffs.

Larry put together this very cool spreadsheet to take into account how the three typical resonances in a PDN might interact- the Bandini Mountain, the board caps and bulk cap parallel resonance and the VRM and bulk cap parallel resonance.

There’s a lot more to it as well, including the mounting inductance of the capacitors and the package based on their geometry.

It probably won’t mean much without the details outlined on chapter 10 which acts as sort of the user manual and shows a few examples of  using this spreadsheet to evaluate a design.  But, you can download the spreadsheet and if it tweaks your interest, go ahead and purchase the book. In the pdf version, all the figures are in color. I think you will find a few valuable nuggets that will help you in your next PDN design.

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5 Responses to Download Your Copy of the PDN Resonance Calculator Spreadsheet

  1. binayak says:

    Finally the wait is over!
    Congrats and thanks for writing this book. It’s gonna help a LOT of engineers!

    Just two questions:

    [1] Will it be a colored book (either Hardcover or Kindle version)?

    [2] As you mentioned in DesignCon 2016, there are actually around 12 major issues regarding PDN design – one of them being self aggression noise from core Vdd on Vdd. Will the book be discussing about the other issues as well?

    Congrats to you guys once again!

    • ericbogatin says:

      The hardback is black and white but the pdf is color.
      We cover self aggression noise in core rails, and a little bit about the signal integrity problem when signals change return planes. Some of the other SI/PI problems may be addressed in future editions of this book.

  2. Damian Wieczorek says:

    I’ve been anxiously awaiting its arrival (which it did last week). It is nice to see that you maintained the same format as your previous book. For someone who read it multiple times, your new book feels like a refresher of the previous info and a deep dive (with the stress on the principles and intuitive understanding) to the new and expended topics. I like the fact that you provided in your new book many examples of measurements and the tools used for those measurements. It is very helpful when trying to reproduce them. Congrats and thanks for the effort!

  3. robert hanson says:

    Sounds like an excellent book, so what is the cost?

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