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Main » Audio
Perhaps you would know how to make a stereo audio amplifier using two LM386 ICs. But do you know how to add the digital volume control feature to it? If not, check this project. It uses a DS1868 digital potentiometer that creates a voltage divider network at the input stage of LM386 to control the fraction of signal fed to the amplifier. The potentiometer wiper position is varied digitally by a PIC microcontroller based on the user inputs.
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Category: Audio |
Views: 4531
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This sound level meter is a nice replacement for the standard analog meters. This circuit is used the audio level IC LM3915 and minimal external components.
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Category: Audio |
Views: 2284
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This simple circuit may be used your home audio project. The volume is controlled by two buttons.
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Category: Audio |
Views: 1610
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Category: Audio |
Views: 1310
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 This audio amplifier you can use in your audio project. Size very small (6.5 x 4.5 cm). Outputs: 10W, 9V.
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Category: Audio |
Views: 1981
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