Product description
Stereo I2S Audio Amplifier MAX98357 is a stereo audio board for digital audio transmission via I2S. The board is built around two MAX98357A Class D amplifiers, with each circuit handling a separate audio channel. With up to 3W output power per channel, high efficiency and low distortion, the module is suitable for projects such as music players, synthesizers, alarm systems and IoT devices with audio functionality. The board features quick-connect speaker terminals and solder jumpers for gain (volume) selection. Compatible with ESP32, Raspberry Pi and other microcontrollers with I2S output.
Specifications:
- Amplifier IC: 2 x MAX98357A
- Number of channels: 2 (stereo)
- Audio interface: I2S
- Output power: 3W per channel at 4Ω, 1.5W per channel at 8Ω
- Supply voltage: 2.5 - 5.5V
- Gain: 6, 9, 12 or 15dB
- Efficiency: 92%
- THD+N: 0.013% at 1kHz
- Quiescent current: 2.4mA
- Sampling rate: 8 - 96kHz
- Speaker connection: Quick-connect terminals
- Compatibility: ESP32, Raspberry Pi and microcontrollers with I2S output