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Radiated Emissions on ADuM5402 at 1.09GHz

Question asked by mgre on Jul 24, 2012
Latest reply on Jul 31, 2012 by MSCantrell

On our radiated emissions testing we found an issue from the ADuM5402 at 365MHz, as noted in the AN-0971, but additionally at 1.09GHz. This appears to be the third harmonic of the 365MHz. As the application note does not deal with suppressing the 1.09GHz, what can be done about this? As our outage is larger than 20dB to our requirements, we need a very efficient measure here.