Multiple Sound Generator Circuit Composed of HT2880

Published:2011/4/21 23:07:00 Author:Sue | Keyword: Multiple, Sound, Generator | From:SeekIC

This circuit is able to generate 8 kinds of sounds: 2 kinds of machine guns sound, 2 kinds of bomb sound, dual-tone melody, game sound, animal sound and rifle sound. These sounds can be played by thumb-rotated switch S2 and a push-button switch. HT2880 is ROM chip of a large scale integrated circuit CMOS. In the circuit, transistor VT1 and VT2 are linked into Darlington geminate transistor to amplify signals output from the fourth terminal.



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