MULTIFUNCTION_SIREN_SYSTEM

Published:2009/7/6 5:32:00 Author:May | From:SeekIC

The circuit uses a CA3130 BiMOS op amp as a multivibrator to control the siren's rate. A CA3094 used as a VCO is followed by a CA3082 transistor array used to drive a speaker. A Manual or Auto mode switch allows the user to select either intermittent or continuous siren operation, respectively. In addition, three switches are available that control Mode , Attack , and Rate .



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