AD9838 DDS Amplitude adjustment

Hi, is it possible to adjust the amplitude of the sine wave in the AD9838. It is described as a waveform generator and the https://www.analog.com/media/en/training-seminars/design-handbooks/Technical-Tutorial-DDS/Section1.pdf App note shows that a typical DDS has a 12 bit AM (Amplitude modulation) adjustment. Any help would be much appreciated. Thanks

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