2011•Computer Knowledge and TechnologyRequires access
The Design of the DDS Sine Wave Signal Generator Based on MCU
LU Qiu-ju
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Abstract
On the basis of microprocessor's principle and the direct digital synthesis technology,the Sine signal generator was designed,using the microprocessor AT89C51 chip as master controller,through Hardware circuit's production and Software programming.The signal source can output stable and adjustable sine wave in 1 KHz to 20 MHz range,through the direct digital synthesis technology made a sine signal source which step value can be adjusted arbitrarily,and used 12864 LCD to display output.