Abstract
A procedure is about a way of how to design a kind of Audio sweep Generator, the device is a novel audio sweep generator, controlled by MCU(Micro Controller Unit), combined with digital and analog circuits. The characteristics of this generator are as follows: Strong stability, sine wave output, tone of any loudspeaker. There are two kinds of working ways of logarithm sweep and manual frequency modulation. Besides, the start point , end point and sweep time can be set at random, and the frequency can be regulated accurately according to manual frequency modulation including rude frequency modulation and fine frequency modulation. The values of signal frequency and voltage are displayed synchronously on the LCD screen of 128*64 dot matrix. And there is a synchronous output.
Keywords:MCU; VOC; LCD; AMP