The MAX98357A I2S Digital Audio Amplifier Module is a compact 3W Class-D mono amplifier with a built-in I2S digital-to-analog converter (DAC). It receives digital audio directly through the I2S interface, eliminating the need for an external DAC while delivering clear, high-quality audio output.

MAX98357A I2S Amplifier Module

The module is ideal for ESP32, Raspberry Pi, STM32, Arduino (with I2S support), and other microcontrollers, making it perfect for smart speakers, voice assistants, IoT devices, audio playback systems, and DIY electronics projects.

Features

• Built-in MAX98357A I2S DAC + Class-D Amplifier
• Up to 3W mono speaker output
• Direct I2S digital audio input
• No external DAC required
• High-efficiency Class-D amplifier
• Supports multiple I2S audio formats
• Compact and lightweight design
• Excellent audio quality with low distortion
• Easy integration with ESP32 and Raspberry Pi

Specifications

• IC: MAX98357A
• Amplifier Type: Class-D Mono
• Audio Input: I2S Digital Audio
• Output Power: Up to 3W (4Ω Speaker)
• Supply Voltage: 2.5V – 5.5V DC
• Recommended Voltage: 5V
• Output: Mono Speaker
• Efficiency: Up to 92%
• Supports Left, Right, or Mixed Audio Output
• Low Power Shutdown Mode

Pin Configuration

Applications

• ESP32 Audio Projects
• Raspberry Pi Audio Output
• Smart Speakers
• Voice Assistant Devices
• MP3 Player Projects
• IoT Audio Systems
• Home Automation
• DIY Electronics
• Embedded Audio Systems
• Portable Audio Devices

Package Includes

• 1 × MAX98357A I2S Digital Audio Amplifier Module