Introduction - If you have any usage issues, please Google them yourself
Modules can output sine and square wave, two sine and two square wave output. AD9851 :0-70MHz, 20-30MHz frequency harmonics in the growing, the waveform will become unclean. Square wave :0-1MHz, using 70MHz low-pass filter, so that the waveform better than SN, parallel and serial data input via a jumper cap choice. Pin (PIN12) leads generated DA basis, so convenient to adjust the amplitude of the output waveform application. A reference voltage input terminal of the comparator is generated by a variable resistor, the resistor can be adjusted to obtain a different duty cycle square wave