MAX98357A I2S 3W Class D Amplifier Module

The MAX98357A is a compact I2S digital audio amplifier module delivering 3W of Class D output power. Designed for embedded audio applications, it interfaces directly with microcontrollers and single-board computers via the I2S protocol, eliminating the need for an external DAC.

Key Features:

• Output Power: 3W into 4Ω at 5V
• Interface: I2S digital audio input
• Supply Voltage: 2.5V to 5.5V
• High efficiency Class D amplifier — minimal heat generation
• No external DAC required
• Compact PCB module — easy to integrate

Compatible With:

• Raspberry Pi (all models with I2S)
• ESP32
• Arduino (with I2S support)
• Any microcontroller with I2S output

Applications: Smart speakers, portable audio devices, IoT audio systems, embedded music players, and DIY audio projects.