Burst sound generator circuit composed of the SN7473

Published:2011/8/25 21:47:00 Author:TaoXi | Keyword: Burst sound, generator circuit | From:SeekIC

The burst sound generator circuit composed of the SN7473 is as shown in the figure. When the sine wave is changing into the burst sonic, it needs the wveform shaping circuit, the frequency dividing circuit and the switching circuit. As the figure 6-64 shows, the waveform shaping circuit uses the schmitt circuit; the frequency dividing circuit uses the T trigger; the switching circuit uses the FET tube. The SN7473 is the frequency dividing circuit, when the Q outputs the high level, the VT6 conducts, the grid electrode of VT7 outputs the low level and cuts off to change into the high impedance and output the U. When the Q outputs the low level, the VT6 cuts off, the VT7 conducts to output the U.



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