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High Harmonics at ADL5387's IF port

Question asked by plkmn3 on Dec 2, 2013
Latest reply on Dec 3, 2013 by peng.chen

Hi;

 

In the datasheet of ADL5387 we saw the IIP3 spec is 30dBm, that is means if the input signal is 0 dBm, then the output harmnic should lower than -60 dB compare to the fundamental component. But we got a much higher harmonic level, about -50 dB than the fundamental . we don't know what's wrong, please help us.

 

THX!

 

Donald

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