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Trouble with the frequence of AD9837

Question asked by 求知若渴 on Nov 17, 2017
Latest reply on Nov 17, 2017 by 求知若渴

Hi engineers:

 I have used the AD9837 to make a signal generator,that with a external oscillator 16MHz,and it is described that the AD9837 can generate a signal with 8MHz in the datasheet,but when i set the frequency beyond 100KHz,both the Sine Output  and the Triangular Output  are distorted,like the pictures below.I just use the typical   Application Circuit  in the datasheet.

sine

triangular

can you help me  to analyse the reason?and help me how to solve the trouble?

Thanks,Best wishes.

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