MAX98357 Audio Decoder Module

The MAX98357 Audio Decoder Module is a compact I2S Digital Audio Amplifier Module based on the MAX98357A Class-D amplifier IC, designed to convert digital I2S audio signals into high-quality amplified audio output. It eliminates the need for an external DAC by directly interfacing with microcontrollers such as Arduino (with I2S support), ESP32, Raspberry Pi, STM32, and other embedded platforms. Delivering up to 3W of audio output, this module is ideal for smart speakers, voice assistants, IoT devices, multimedia systems, and DIY audio projects. Available at Directronics, the MAX98357 Audio Decoder Module is perfect for students, hobbyists, makers, educators, and professional engineers.

Features:

• MAX98357A Digital I2S Audio Amplifier IC

• Integrated DAC and Class-D Audio Amplifier

• Supports I2S Digital Audio Input

• Up to 3W Audio Output (4Ω Speaker)

• High Audio Quality with Low Distortion

• Filterless Class-D Output Design

• Compact and Durable PCB Design

• Low Power Consumption

• Mono Audio Output

• Easy Integration with ESP32, STM32, Raspberry Pi, and Other I2S-Capable Boards

• Wide Operating Voltage Range

• Suitable for Embedded Audio Applications

Why Choose MAX98357 Audio Decoder Module?

• Converts digital I2S audio directly to amplified speaker output

• No external DAC required

• Delivers clear and efficient audio performance

• Compact design for space-constrained projects

• Easy interfacing with modern microcontrollers

• Ideal for beginners, students, hobbyists, and professionals

Applications:

• Smart Speakers

• Voice Assistant Projects

• IoT Audio Devices

• MP3 and Audio Playback Systems

• Embedded Audio Systems

• DIY Bluetooth Speakers

• Robotics with Voice Feedback

• Educational Electronics Projects

• Multimedia Systems

• Prototype Development

Technical Specifications:

• Product Type: I2S Digital Audio Amplifier Module

• Amplifier IC: MAX98357A

• Audio Input Interface: I2S

• Audio Output: Mono Speaker Output

• Maximum Output Power: Up to 3W (4Ω Speaker)

• Operating Voltage: 2.5V–5.5V DC

• Output Load: 4Ω–8Ω Speaker

• Amplifier Type: Class-D

• Signal-to-Noise Ratio (SNR): Up to 103dB (Typical)

• THD+N: Low Distortion (Typical)

• Operating Temperature: -40°C to +85°C

Package Includes:

• 1 × MAX98357 Audio Decoder Module

Related Products:

• ESP32 Development Board

• Raspberry Pi Pico

• STM32 F103C8T6 System Board

• PAM8403 Amplifier Board with Switch Potentiometer

• 3W 4Ω Speaker

• INMP441 I2S Microphone Module

• Arduino Nano

• Jumper Wire Kit

• Breadboard

• USB Power Supply Module

Why Buy from Directronics?

Directronics provides quality development boards, communication modules, sensors, electronic components, robotics modules, power management solutions, and IoT products for students, makers, educational institutions, startups, and industry professionals. Explore our complete range of Arduino, ESP32, ESP8266, Raspberry Pi, power modules, motor drivers, programming tools, and embedded development products to bring your ideas to life.

Note:

Product images are for illustration purposes only. Actual PCB layout, pin arrangement, and component placement may vary depending on the manufacturing batch. Please verify your microcontroller supports the I2S communication interface before use. Use a compatible 4Ω or 8Ω speaker and ensure the power supply meets the module's operating requirements for optimal audio performance.