30W Stereo Audio Amplifier with Clipping Protection

This reference design features a 30W stereo audio amplifier that employs a motorized slide potentiometer to provide clipping protection. The PSM60-081A-103B2 is a half-watt, 10kΩ, 60mm, motorized slide potentiometer. It provides two built-in 10kΩ variable resistors labeled as line track and servo track. The line track variable resistor can be used for other purpose, while the servo track variable resistor can be used for tracking the position of the potentiometer lever. The built-in DC motor controls or adjusts the position of the potentiometer lever as well as the resistance of the line track and the servo track variable resistors. Read more