MAX98357A

Description
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A complete, high-efficiency digital audio amplifier module integrating a DAC and Class D amplifier. It directly accepts I2S digital audio signals and drives a 4-8Ω speaker with up to 3.2W output. The compact design is ideal for microcontroller audio projects, portable speakers, and embedded systems requiring clear digital audio output without analog signal conversion.

Key Features & Benefits

Digital Audio Amplifier: Direct I2S input eliminates analog noise interference and simplifies wiring from digital audio sources.
Class D Efficiency: >90% efficiency provides high power output with minimal heat generation, suitable for battery-powered devices.
Plug-and-Play: No external DAC required – includes all necessary components for a complete audio output solution.
Selectable Gain: Onboard jumpers configure 3dB, 9dB, or 15dB gain to match different speaker sensitivities.
Click-Free Operation: Features automatic shutdown and pop suppression for clean audio activation and power-down.