Published:2011/7/8 1:03:00 Author:Joyce | Keyword: Alarm , Generator | From:SeekIC
The voltage-controlled oscillator installed within CD4046 has very good practicability. Though its internal circuit structure is very complex, the usage is quite simple. While using CD4046, through regulating the control voltage of its foot ⑨, one can make the oscillation frequency of the vco varies in a wide range. And controlling its feet⑤ can make it start or stop oscillation easily. This structure of the circuit gives it a unique advantage in all kinds of alarm circuit. As shown in the figure is the alarm generator composed of CD4046.
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