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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: 3759

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.  ... Read more »
Category: Audio | Views: 1889

This simple circuit may be used your home audio project. The volume is controlled by two buttons. ... Read more »
Category: Audio | Views: 1390

Interesting and simple project  ... Read more »
Category: Audio | Views: 1073

10w small amplifier
This audio amplifier you can use in your audio project. Size very small (6.5 x 4.5 cm). Outputs: 10W, 9V.  ... Read more »
Category: Audio | Views: 1705

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