Features of MAX98357 I2S Audio Amplifier Module:

• Output power: 3.2W at 4Ω and 10% THD 1.8W at 8Ω and 10% THD
• I2S sampling rate: 8kHz-96kHz
• Class D gain optional: 3dB/6dB/9dB/12dB/15dB
• No master clock (MCLK) required
• Plug and Play: 35 different clocks and 128 digital audio formats can be automatically configured with a single power supply
• Suitable for microcontrollers or development board systems with I2S audio output such as Raspberry Pi, Arduino and ESP32

Pin of MAX98357 I2S Audio Amplifier Module:

• LRC: Frame clock. Left/Right clock for I2S and LJ modes. Sync clock for TDM mode.
• BCLK: Bit clock input.
• DIN: Digital input signal.
• GAIN: Gain and channel selection.
• SD: Shutdown and channel selection. Pull SD_MODE low to place the device in shutdown.
• GND: Power ground.
• VCC: DC 2.5V-5.5V.