HALJIA MAX98357 I2S 3W Class D Amplifier Breakout Module DAC Decoder Module Filterless Audio Board Compatible with Raspberry Pi ESP32

Features: MAX08357 I2S Amp Breakout takes standard I2S digital audio input and, not only decodes it into analog, but also amplifies it directly into a speaker. I2S in a digital sound protocol that is used on circuit boards to pass audio data around. Then, to input or output data, three or four pins are used (data in, data out, bit clock and left-right channel select). Usually, for audio devices, there’s a DAC chip that will take I2S in and convert it to analog that can drive a headphone. Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Class D makes it perfect for portable and battery-powered projects. It has built in thermal and over-current protection. There’s a Gain pin that can be manipulated to change the gain. By default, the amp will give you 9dB of gain. Specification: CHIP: MAX98357 Type: CLASS D Output power: 3.2W at 4Ω and 10% THD; 1.8W at 8Ω and 10% THD. I2S sampling rate: 8kHz-96kHz Class D amplifier with optional gain: 3dB/6dB/9dB/12dB/15dB Compatible Audio and Video Equipment Style: Player, Earphones and Headphones, Speakers, Professional Audio Board Size：19 × 17.5 mm Kit Weight：2.2gPin description: LRC: Left/right clock in I2S and LJ mode. The synchronous clock is used in TDM mode. BCLK: Bit clock input DIN: digital input signal GAIN: gain and channel selection. In TDM mode, the gain is fixed at 12dB SD: Shutdown and channel selection. SD MODE is pulled low to put the device in a shutdown state. GND: power ground VCC: positive power supply, DC 2.5V-5.5VPacking List: 1 × MAX08357 I2S Amp Breakout 1 × Pin header 1 × Terminal