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Stereo I2S Audio Amplifier MAX98357-Actuators
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  • Stereo I2S Audio Amplifier MAX98357-Actuators
  • Stereo I2S Audio Amplifier MAX98357-Actuators
  • Stereo I2S Audio Amplifier MAX98357-Actuators
Stereo I2S Audio Amplifier MAX98357
SKU: 333355
€8,95

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Add-Ons

24/7 lifetime customer and technical support

2-year Warranty -no questions asked

Comprehensive Documentation

Open-source everything

Description

This stereo I2S digital audio amplifier breakout is the perfect solution for adding high-quality stereo audio output to your projects. Built around two MAX98357A Class D amplifier chips configured in left and right channel layout, it delivers 3W of power per channel with efficiency and audio quality. The digital I2S interface eliminates noise and interference, providing crystal-clear stereo sound reproduction with 92% efficiency and low 0.013% THD+N distortion at 1kHz.
 
The breakout features onboard jumpers for gain selection (6dB, 9dB, 12dB, or 15dB), allowing you to optimize output levels for different speaker impedances and applications. Secure push terminals provide reliable speaker connections without soldering, while the left-right clock control enables proper stereo channel separation. Operating from a single 2.5V to 5.5V supply with only 2.4mA quiescent current.
 
Whether you're building a portable music player, digital synthesizer, alarm system, or IoT audio device, this amplifier delivers audio performance in a compact, easy-to-integrate package. The Class D output stage eliminates the need for external components while providing speaker protection and thermal management. Compatible with ESP32, Raspberry Pi, Arduino(Stereo), MicroPython (single channel) and any microcontroller with I2S output capability.
Complimentary technical support

In case you ever get stuck with using this product, you can count on us. We provide free, no-strings-attached technical support with this product. Just reach out to us with your questions, and we'll be there to help you.
Open-source

Open-source culture is rooted deep inside us, and that’s reflected in our products. This product follows the open-source principle. It was made with the community’s suggestions and needs in mind. With a modular design, it can be modified to your needs and incorporated into your projects. We provide all the design documentation needed free of charge on our Github repository.
Qwiic

Our Qwiic ecosystem provides plug‑and‑play connectors for solderless connections, enabling you to add sensors and modules without wiring errors. Get up and running in seconds, whether you’re a beginner or a professional. Full documentation is available on our Qwiic page so you can explore all features and supported modules.
Made in EU

Soldered products, designed and manufactured in Croatia, are thoroughly tested and meet the highest EU standards of quality and safety.

Technical Specifications

  • 2 x MAX98357A digital i2s class D amplifiers
  • Each chip handles one audio channel
  • 3v3 power supply
  • 3.2W Output Power into 4Ω at 5V
  • 2.4mA Quiescent Current
  • 92% Efficiency (RL = 8Ω, POUT = 1W)
  • 22.8μVRMS Output Noise (AV = 15dB)
  • Low 0.013% THD+N at 1kHz
  • Sample Rates of 8kHz to 96kHz
  • Breadboard-compatible design
  • Documentation and simple quick start guides available
  • Arduino and MicroPython library support
  • Extensive Click-and-Pop Reduction Circuitry

Resources & Documentation

DEVELOPMENT & RESOURCES
ARDUINO LIBRARY PRODUCT DATASHEET PINOUT DRAWING

Reviews

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Stereo I2S Audio Amplifier MAX98357: Professional Audio for Your DIY Projects
Stereo I2S Audio Amplifier MAX98357: Professional Audio for Your DIY Projects

Overview of the MAX98357 I2S digital audio amplifier and how digital amplification works. Explains I2S signals, wiring to ESP32, speaker/audio format selection, and an ultrasonic warning project that plays WAV audio when distance stays in range.
19.01.2026 Read more