1.AD9850 and AD9851: The module can output sine waves and square waves, with 2 sine waves and 2 square waves. The frequency range of AD9850 is 040MHz, while AD9851 is 070MHz. However, at frequencies above 2030 MHz, the harmonics increase and the waveform becomes less clean. Rectangular wave output is in the range of 01 MHz. 2.Improved waveform quality: a 70 MHz lowpass filter is used to improve the signaltonoise ratio of the waveform, better waveform quality. 3.Flexible amplitude adjustment: designed with a pin (PIN to generate the DA reference, which makes it easier to adjust the output waveform amplitude according to different application requirements. 4.Variable switchon square waves: the reference input voltage of the comparator is generated by a variable resistor that allows the adjustment of the duty cycle of the square wave output. 5.Stable Oscillators: The AD9850 module uses an active oscillator at 125 MHz, while the AD9851 module contains an active oscillator at 30 MHz, stable and reliable performance. 6.Compact size: The dimensions of the module are 5 cm x 2.6 cm, which makes it compact and easy to integrate into different projects.