AutoBotix MAX98357A I2S 3W Class D Amplifier Breakout Board
SKU:Features
- Integrated I2S Digital-to-Analog Converter (DAC)
- Built-in 3W Class-D Mono Audio Amplifier
- Supports standard I2S digital audio interface
- Up to 3.2W output power with 4Ω speaker
- Operates from 2.7V to 5.5V DC supply
- Supports 3.3V and 5V logic levels
- Selectable gain settings: 3dB, 6dB, 9dB, 12dB, and 15dB
- No external MCLK required
- Excellent click-and-pop noise suppression
- Thermal shutdown and overcurrent protection
- Compact breakout board design for easy integration
Technical Specifications
| Parameter | Value |
|---|---|
| IC | MAX98357A |
| Audio Interface | I2S |
| Amplifier Type | Class-D |
| Output Configuration | Mono |
| Supply Voltage | 2.7V – 5.5V DC |
| Output Power | 3.2W @ 4Ω, 5V |
| Output Power | 1.8W @ 8Ω, 5V |
| Supported Sample Rates | 8kHz – 96kHz |
| Gain Options | 3dB, 6dB, 9dB, 12dB, 15dB |
| Default Gain | 9dB |
| Logic Compatibility | 3.3V / 5V |
| Protection Features | Thermal & Overcurrent Protection |
| Dimensions | Approximately 19.4 × 17.8 mm |
Applications
- ESP32 Audio Projects
- Raspberry Pi Audio Output
- Smart Speakers
- Voice Assistant Devices
- IoT Sound Notification Systems
- MP3 and WAV Audio Players
- Interactive Robotics Projects
- Home Automation Announcements
- DIY Audio Systems
- Embedded Sound Applications
₹765.00 ₹849.00
The MAX98357A I2S 3W Class-D Amplifier Breakout Board is a compact digital audio amplifier module that combines a high-quality I2S DAC and a Class-D audio amplifier in a single board. It accepts digital I2S audio signals directly from microcontrollers such as ESP32, Raspberry Pi, STM32, Arduino-compatible boards, and other processors with I2S support, eliminating the need for an external DAC. The module converts digital audio into amplified analog output capable of driving a speaker directly, making it ideal for IoT, smart speakers, voice assistants, MP3 players, audio notification systems, and embedded sound projects.
Designed for efficiency and simplicity, the MAX98357A operates from a single 2.7V to 5.5V power supply and can deliver up to 3.2W of output power into a 4Ω speaker. The built-in Class-D architecture provides high efficiency with minimal heat generation, making it suitable for battery-powered and portable applications. The module also features selectable gain settings, thermal protection, overcurrent protection, and click-and-pop suppression for clear and reliable audio performance.
| Weight | 0.20 kg |
|---|---|
| Dimensions | 11 × 11 × 4 cm |