PAM8403 digital amplifier board 2*3W Class D (5V)

The PAM8403 is a popular audio amplifier integrated circuit (IC) that is commonly used to build small audio amplifier boards. It is a Class D amplifier, which means it operates by switching the output transistors on and off rapidly to amplify the audio signal efficiently. The “2*3W” specification indicates that this amplifier is capable of delivering a maximum power output of 3 watts per channel (left and right channels), and it has two channels, providing stereo output.