MAX98357A I2S DAC Class-D Mono Amplifier Module

Product Description

The MAX98357A I2S DAC Class-D Mono Amplifier Module is a compact, high-quality digital audio amplifier designed for embedded audio and IoT applications. It combines a 24-bit I2S Digital-to-Analog Converter (DAC) with a Class-D Mono Audio Amplifier, allowing you to connect an I2S-compatible microcontroller directly to a speaker without requiring an external DAC.

The module delivers clear, high-quality audio while maintaining excellent power efficiency. It is fully compatible with popular development boards such as ESP32, Raspberry Pi, STM32, and other microcontrollers that support the I2S audio interface.

The MAX98357A is an ideal solution for voice assistants, smart speakers, audio playback systems, IoT devices, robotics, and DIY embedded audio projects.

Key Features

• Based on the MAX98357A Digital Audio Amplifier IC
• Built-in 24-bit I2S Digital-to-Analog Converter (DAC)
• Integrated Class-D Mono Audio Amplifier
• High-quality digital audio output
• No external DAC required
• Supports standard I2S audio interface
• High efficiency with low heat generation
• Compact and easy-to-use module
• Excellent noise performance and audio clarity
• Plug-and-play with I2S-compatible microcontrollers

Applications

• ESP32 Audio Projects
• Raspberry Pi Audio Systems
• Voice Assistant Projects
• Smart Speakers
• IoT Voice Devices
• Robotics with Voice Feedback
• Audio Playback Systems
• MP3 Player Projects
• Embedded Audio Applications
• DIY Electronics
• Educational and STEM Projects

Specifications

• Product Type: I2S Digital Audio Amplifier Module
• Model: MAX98357A
• DAC Resolution: 24-bit
• Audio Interface: I2S
• Amplifier Type: Class-D Mono
• Supply Voltage: 2.5V – 5.5V DC
• Output Power:
  • Up to 3W @ 4Ω Speaker (5V Supply)
  • Up to 1.5W @ 8Ω Speaker (5V Supply)
• Output Channels: Mono
• Signal-to-Noise Ratio (SNR): Up to 103dB
• Sample Rate: 8kHz – 96kHz
• Compatible Logic Level: 3.3V / 5V
• Compatible Boards: ESP32, Raspberry Pi, STM32, Arduino (with I2S support), ESP8266 (limited I2S support)

Package Includes

• 1 × MAX98357A I2S DAC Class-D Mono Amplifier Module

Why Choose This Module?

The MAX98357A I2S DAC Class-D Mono Amplifier Module is an excellent choice for developers, students, and makers looking to add high-quality digital audio to their projects. With its integrated 24-bit DAC and Class-D amplifier, it simplifies circuit design by eliminating the need for external audio conversion hardware. Whether you’re building an ESP32 voice assistant, smart speaker, robotics project, or IoT audio system, the MAX98357A delivers crystal-clear sound, high efficiency, and reliable performance in a compact module.