The AD9850 module AD9850 display control module DDS touch screen scan amplitude ratio

AD9850DDSColor control module

Default shipping is AD9850; Module features:

1, the most complete function of the AD9850 module: there are frequency, phase, amplitude and square wave duty cycle control function, as well as sweep frequency function.

1, through the module can quickly master the use of AD9850chip, the program provides a very valuable reference;

2, very convenient controlAD9850Module, quick to masterAD9850Function of module;

3, color interface is very beautiful, touch screen control, easy to operate;(display board to be careful to avoid damage to the plug, touch screen)

4, supportAD9850All function related parameter settings, can expand the frequency, phase;

5, the use of USB port power supply,Use the mircoUSB interface (the kind that is used on smartphones now).;

Two, the output of the 6 way up to 40Mhz of the differential sine wave signal, the output part of the low pass filter, while the output of two Lu Fangbo signal;

7, amplitude program control: 10Bit control accuracy;

8, duty cycle control: 12Bit control accuracy;

9, linear sweep function (RAMP FSK), using 32 bit high speed MCU (STM32F103), and AD9850 with parallel mode control;

10, this module design and materials are very particular about, to improve the stability and reliability of the module to help; signal stability is very good.

Two, module measured waveform:

50Hz sine wave output amplitude 1V

1Mhz sine wave output amplitude 1V

40Mhz sine wave output amplitude more than and 500 MV

1Mhz square wave output 5V

10Mhz square wave output 5V

Three, module application:

1, high frequency programmable signal source;

2, test with the signal source (sine wave, Fang Bo);

3, the maintenance of the signal source;

Four, module performance parameters:

1, working voltage: 0.5A 5V (directly through the USB power supply);

2, the output of two sine wave signal, phase difference of 180 degrees;

Two square wave signal, phase difference of 180 degrees, the duty cycle can be from 10-90% (can be 0-100, but the stability of the signal is not good too good) can be adjusted;

3, the maximum output frequency: 40Mhz;

4, the output signal amplitude: 1Vp_p (10Mhz below, the higher the frequency will slowly become smaller)

5, frequency control accuracy: 1HZ;

6, sine wave amplitude: 10Bit (0-1Vp_p adjustable), pay attention to adjust the sine wave signal will affect the square wave signal;

7, Fang Bo's duty cycle: 12Bit (0-100% adjustable);

Five, suite:

1,AD9850 module one;

2, to provide STM32 project program (GUI is Library) and schematic (PDF);