SparkFun I2S Audio Breakout - MAX98357A

The SparkFun I²S Audio Breakout - MAX98357A is a powerful tool that uses the MAX98357A digital to analog converter (DAC) to transform I²S audio into an analog signal that can drive speakers. The board is capable of delivering up to 3.2W of power into a 4Ω load, and can be configured to output either the left channel audio, right channel, or both.

The SparkFun I²S Audio Breakout board is designed for simplicity, requiring only a few pin connections to start operating. By default, the board combines the left and right signals to drive a single speaker in “mono” operation. However, if you prefer a separate speaker for each audio channel, you can simply cut the mono jumper. The board also allows you to configure the gain of the amplifier from as low as +3dB to as high as +15dB. The gain is controlled externally using the gain pin and is set to +9dB by default, but can be easily adjusted to your preference.

The SparkFun I²S Audio Breakout board is equipped with a range of features that enhance its performance and usability. It operates on a supply voltage range of 2.5V - 5.5V, and can handle sample rates from 8kHz - 96kHz with a sample resolution of 16/32 bit. The board also boasts of a low quiescent current of 2.4mA. It utilizes filterless Class D outputs and requires no MCLK. Additionally, it includes features for click and pop reduction, as well as short-circuit and thermal protection.

The SparkFun I²S Audio Breakout board is an ideal choice for a wide range of audio projects. It offers a versatile solution for converting digital audio signals to analog and amplifying the signal. Whether you're an audio enthusiast looking to create a custom sound system, or a professional seeking a reliable and easy-to-use audio converter and amplifier, the SparkFun I²S Audio Breakout board is a strong contender to consider.