PCB Stack-Up Design And Impedance Calculator May 12, 2007
Review: A new PCB stack-up design and impedance calculator is available for download from Istvan Nagy (see link below). It is a full-featured Excel-based tool that helps plan the PCB stack-up so that controlled impedance traces can be effectively implemented. It covers both single-ended and differential traces and is based on the equation s from IPC-D-317A. It allows one to see the range of impedances that are possible for a given layer stack-up. It also has pre-distortion calculations to support high-speed compensation, a unit changer, and a materials library.
Right-Click, Download and Save the Excel tool here:
layerstack_planningoriginalipc.xls
Istvan Nagy’s home page:
[Sorry, link had to be removed due to content issues.]
Do you have a favorite stack-up and impedance calculation tool? Let us know about it in the comments below.
- Posted in : Calculators, Electrical Engineering, Excel, Reviews
- Author : Brad
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VERY HELPFUL THANK YOU, NANDRI
Be careful using the equations based on the IPC document. They are formula based and don’t account for some of the factors that go into manufacturing PWBs also they don’t account for fringing fields.