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Introducing the 1-20pcs MAX98357A I2S Class D Audio Amplifier – 3W Digital Power Module, the perfect solution for hobbyists, makers, and professionals who need compact, high‑efficiency sound amplification for DIY speakers, smart voice assistants, and embedded audio projects. Designed around the industry‑leading MAX98357A chip, this module delivers crystal‑clear 3 W stereo output with minimal distortion, all while consuming less than 0.5 W of power.
Key Highlights
- 🔊 3 W Stereo Output – Powerful enough for small speakers, earbuds, and voice‑assistant enclosures.
- 💡 I2S Digital Interface – Direct I2S connection eliminates analog noise and simplifies wiring.
- ⚡ Class D Efficiency – Up to 95% efficiency reduces heat and extends battery life.
- 🛠️ Compact 15 mm × 20 mm PCB – Fits into tight spaces for portable and wearable designs.
- 🔌 Built‑in 3.3 V & 5 V Operation – Compatible with most microcontrollers, Arduino, Raspberry Pi, ESP32, and more.
- 🔒 Integrated Protection – Over‑current, thermal‑shutdown, and short‑circuit protection for reliable operation.
- 📦 Flexible Quantity Options – Available in packs of 1, 5, 10, or 20 units to suit prototyping or production runs.
Why Choose This Amplifier?
Whether you’re building a voice‑controlled smart speaker, a Bluetooth audio module, or a custom headphone driver, the MAX98357A delivers consistent performance with a simple I2S hookup. Its low‑latency digital path ensures that audio playback stays in sync with your source, while the Class D architecture keeps the module cool even during continuous use.
Compatibility & Applications
- Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and other 3.3 V/5 V microcontrollers.
- DIY speaker projects, portable Bluetooth speakers, and smart home voice assistants.
- Wearable audio devices, hearing‑aid prototypes, and educational electronics kits.
- Integration into IoT products that require compact, energy‑efficient sound output.
Technical Specifications
- Chip: Texas Instruments MAX98357A
- Power Output: 3 W (RMS) per channel into 4 Ω
- Supply Voltage: 3.3 V / 5 V
- Interface: I2S (LRCK, BCLK, DIN)
- THD+N: < 0.1 % at 1 kHz
- Operating Temperature: –40 °C to 85 °C
- Dimensions: 15 mm × 20 mm × 1.2 mm (PCB thickness)
- Protection: Over‑current, thermal shutdown, short‑circuit
Package Includes
- 1‑20pcs of MAX98357A I2S Class D Audio Amplifier modules (selected quantity)
- Silicone pads for secure mounting (optional, based on pack size)
- Quick‑start guide with wiring diagram and I2S configuration tips
Easy Integration
Each module comes with clearly labeled pins (VCC, GND, DIN, BCLK, LRCK) and a solder‑friendly layout, making it straightforward to drop into a breadboard or prototype PCB. Pair it with a microcontroller library for I2S audio, and you’ll have high‑quality sound in minutes.
Upgrade your audio projects with the reliable, efficient, and space‑saving MAX98357A I2S Class D Audio Amplifier. Order the quantity that fits your needs and start delivering premium sound today!
Price: Original price was: $ 3.78.$ 1.89Current price is: $ 1.89.