MAX98357 I2S 3W Class D Amplifier Audio Decoder Module

MAX98357 I2S 3W CLASS D Audio Amplifier Module accepts digital audio through the I2S interface and converts it to an analog output signal and amplifies it to allow direct speaker connection. It combines an I2S D/A converter with an audio amplifier on one board.
MAX98357 I2S 3W CLASS D Audio Amplifier Module is suitable for Raspberry Pi. By default, the stereo signals (L + R) are mixed to form an output signal. The behavior can be changed using a resistor so that only L or R is output.

Specifications:

• Model: MAX98357 
• Output Power: 3.2W at 10% THD (4Ω Impedance Speakers, 5V Power Supply)
• Operating Voltage: 2.7V - 5.5V
• PSRR (Power Supply Rejection Ratio): 77dB at 1kHz
• Selectable Gain Options: 3dB, 6dB, 9dB, 12dB, 15dB
• Input Compatibility: I2S digital audio input with support for 3.3V and 5V signal levels
• Signal Mixing: Default stereo signal mixing (L + R)
• Resistor Configuration: Easily configurable for individual L or R channel output.