MAX98357 I2S Audio Amplifier Module 3W 5V Class D Board for ESP32 Raspberry Pi Plug and Play Audio

Digital input Class D audio amplifier module, compatible with MAX98357, designed for compact, efficient I2S audio projects. This plug and play module delivers clear power and flexible integration for microcontroller and development board systems. Key benefits Ready to use with I2S audio outputs on development boards such as Raspberry Pi, Arduino, and ESP32. No master clock required, simplifying design and reducing wiring. Automatic configuration of clocks and formats: supports 35 different clocks and 128 digital audio formats with a single power supply. Small footprint and low power consumption enable portable and embedded audio applications. Performance and features Output power: 3.2 W into 4 ohm at 10 percent THD, 1.8 W into 8 ohm at 10 percent THD. I2S sampling rate support from 8 kHz to 96 kHz. Class D gain selectable: 3 dB, 6 dB, 9 dB, 12 dB, 15 dB. No MCLK required for operation. Single supply range: DC 2.5 V to 5.5 V. Shutdown pin for power management and channel selection. Pin functions 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 2.5 V to 5.5 V supply. Package contents 1 Audio Amplifier Module 1 Pin 1 Plug Typical applications Compact Bluetooth or wired speaker projects driven by a single board computer or microcontroller. Voice assistant and smart home audio nodes using I2S digital audio streams. Portable audio prototypes, embedded devices, and development boards that require efficient digital to speaker amplification. Why choose this module Simplifies integration of digital audio into projects by handling I2S input and Class D amplification in a small module. Flexible gain options and automatic format handling reduce firmware and hardware complexity. Suitable for hobbyists and developers building audiocapable products with limited board space and power constraints. This module provides a straightforward path from I2S digital audio to speaker output while minimizing external components and configuration effort.