Digital potentiometers (pots) offer advantages for audio volume (gain) control applications and can replace bulky mechanical pots, especially in handheld portable devices such as MP3 players, PDAs, ...

It is now common for portable equipment to include some sort of stereo audio playback circuitry, perhaps for MP3 or Web radio applications. Many specialist ICs are available to use as building blocks ...

This design idea details how a standard volume control can be replaced by its solid-state equivalent. Digital potentiometers are often advertised as replacements for rotary volume controls. To ...