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THE HARMONIC DISTORTION OF THE AD9642-210

Question asked by engineer16 on Aug 20, 2016
Latest reply on Aug 23, 2016 by TonyM

Using chipscope to collect data from AD9642-210,then did the FFT analysis of the data with the Matlab.The result was bad,three times harmonic,five times harmonic,seven times harmonic and so on like those odd harmonic.The clock of the ADC is 200MHz,the iuput signal of the analog port is 210MHz.The data collection circuits designed in according to the reference circuits of the AD9642.

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