40W-Class-D-Audio-Amplifier-with-Digital-Master-Volume-Control

Do you want your audio to be amplified at its finest? You might give this a try.

The OPA1688 device used in this design belongs to the SoundPlus family of Texas Instruments. It is a low-noise operational amplifier designed for audio applications. It can either operate using a single voltage supply or a split voltage supply. The MAX5486, which is also used in this project, is a dual 40kΩ digital logarithmic potentiometer that has a debounced pushbutton interface ideal to control the volume and balance the left and right channel of this project. Read more

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