Digital Volume Control with DS1669

Posted on Aug 2, 2012

This digital volume control has no pot to wear out and introduces almost no noise in the circuit. Instead, the volume is controlled by pressing UP and DOWN buttons. This simple circuit would be a great touch to any home audio project.

Digital Volume Control with DS1669
Click here to download the full size of the above Circuit.

1. U1 is available from Dallas Semiconductor. 2. S1 turns the volume up, S2 turns it down. 3. The input signal should not fall below -0.2 volts. 4. Using a dual polariity power supply (+-5V works fine) will cure most clipping problems. You will have to

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