Using a DS1802 Push-Button Digital Potentiometer to Create an Audio Preamp with Attenuator

Abstract: The DS1802 audio potentiometer contains two digitally controlled potentiometers and features a logarithmic taper that produces a 1dB change per increment. This application note describes using it in a push-button controlled audio preamplifier circuit.

Maxim > App Notes > AMPLIFIER AND COMPARATOR CIRCUITS AUDIO CIRCUITS
DIGITAL POTENTIOMETERS

Keywords: digital potentiometers, preamplifier, preamp, digital pot, xicor May 03, 2002

APPLICATION NOTE 161
Using a DS1802 Push-Button Digital Potentiometer to Create an
Audio Preamp with Attenuator

Abstract: The DS1802 audio potentiometer contains two digitally controlled potentiometers and features a
logarithmic taper that produces a 1dB change per increment. This application note describes using it in a push-
button controlled audio preamplifier circuit.


Introduction to the DS1802 Dual Logarithmic Audio Potentiometer

The DS1802 Audio Potentiometer contains two digitally-controlled potentiometers and features a logarithmic
taper that produces a 1dB chan