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EMI from TRK-KEA128 development boarrd

Question asked by Nirmala Kunwar on Jun 1, 2016
Latest reply on Jun 6, 2016 by vicentegomez

Hi,

I am using TRK_KEA128 development board in my system, where it will be part of a bigger automotive system. While checking EMI levels for board over range of frequencies I found quite high amplitude (36-40 dBuV) of EMI at micro-controller clock frequency and its harmonics. I have tested it with both internal and external clock with frequencies ranging from 5Mhz to 50Mhz and observed EMI at all clock frequencies and their harmonics. It will be great if I can get a test document of the KEA128 board with EMI values at various frequencies so that I will have a benchmark to compare and analyse.

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