SMAKN&reg; DDS Signal Generator Module AD9833 Sine Square Wave AD9833 is a low-power, frequency programmable sine, triangle and square wave generator. Waveform generator widely used in a variety of measurements, such as the field of motivation and time-domain response. Output signal frequency and phase are programmable, so that the output signal frequency and phase is very easy to adjust. Frequency registers 28BIT bit, if the base frequency input 25MHZ, the smallest output precision 0.1HZ. Similarly, if the reference frequency input 1MHZ, the smallest output precision 0.004HZ.