SparkFun I2S Audio Breakout - MAX98357A

The SparkFun I²S Audio Breakout board uses the MAX98357A digital to analog converter (DAC), which converts I²S (not be confused with I²C) audio to an analog signal to drive speakers. The I²S Audio Breakout converts the digital audio signals using the I²S standard to an analog signal and amplifies the signal using a class D amplifier which can deliver up to 3.2W of power into a 4? load. The board can be configured to output only the left channel audio, right channel, or both.

The SparkFun I²S Audio Breakout board is fairly simple, requiring only a few pin connections to get it up and working. By default the board is configured in �mono� operation, meaning the left and right signals are combined together to drive a single speaker. If you want a separate speaker for the left and right audio channels you�ll need to cut the mono jumper. In addition to being able to select the audio channel output, the gain can also be configured in a few ways. The gain of the amplifier can be configured from as low as +3dB to as high as +15dB. While the channel selection can be configured on board, the gain however is controlled externally using the gain pin. By default, the board is configured for +9dB, but can be easily changed!

Get Started with the SparkFun I2S Audio Breakout Guide

Features:

• Supply Voltage Range: 2.5V - 5.5V.
• Output Power: 3.2W into 4? at 5V.
• Output Channel Selection: Left, Right, or Left/2 + Right/2 (Default).
• Sample Rate: 8kHz - 96kHz.
• Sample Resolution: 16/32 bit.
• Quiescent Current: 2.4mA.
• Filterless Class D Outputs
• No MCLK Required
• Click and Pop Reduction
• Short-Circuit and Thermal Protection.

Documents:

• Schematic
• Eagle Files
• Hookup Guide
• Datasheet (MAX98357A)
• GitHub

Videos

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