HKD MAX98357 I2S 3W Class D Audio Amplifier Module

The HKD MAX98357 is a compact I2S digital audio amplifier module based on the MAX98357 Class D amplifier chip. It is designed to deliver high-quality audio output in a small, efficient form factor, making it ideal for DIY audio systems, embedded projects, and portable devices.

Detailed Description

This amplifier module converts digital I2S audio signals directly into analog speaker output without requiring an external DAC, simplifying audio system design. It is capable of driving small speakers with clear and efficient sound output, making it suitable for compact audio applications.

The Class D architecture ensures high efficiency with low heat generation, allowing it to operate reliably in space-constrained environments. Its lightweight and compact design makes it easy to integrate into microcontroller-based systems such as ESP32, Arduino-based audio projects, and IoT devices.

With support for 3W output power, it is ideal for small speakers, headphones, and embedded sound systems where low power consumption and good audio clarity are required.

Features

MAX98357 I2S digital audio amplifier chip

3W Class D efficient audio output

Direct digital-to-analog conversion (no external DAC needed)

Compact and lightweight design

High efficiency with low heat generation

Suitable for DIY audio and embedded systems

Compatible with microcontrollers like ESP32 and Arduino

Ideal for speakers, headphones, and small audio projects

Specifications

Model: HKD MAX98357

Chipset: MAX98357

Amplifier Type: Class D

Input Interface: I2S digital audio

Output Power: 3W

Weight: ~10g

Colour: Purple

Material: Metal/PCB components

Application: DIY audio systems, embedded devices, portable speakers

Package Contents

1 × MAX98357 I2S 3W Class D Amplifier Module

Summary

The HKD MAX98357 I2S 3W Class D Amplifier is a compact and efficient audio solution that delivers clear digital-to-analog sound output. Ideal for DIY electronics and embedded audio projects, it combines simplicity, performance, and low power consumption in one small module.

What's in the box
1 x HKD MAX98357 I2S 3W Class D Audio Amplifier Module