Pin Feature:
LRC: Frame Clock. Left/Right clock for I2S and LJ modes. Sync clock for TDM mode.
BCLK: Bit clock input.
DIN: Digital input signal.
GAIN: Gain and channel selection.
SD: Shutdown and channel selection. Pull SD_MODE low to place the device in shutdown.
GND: Power ground.
VCC: DC 2.5V-5.5V.

Module Feature:
Output Power: 3.2W at 4Ω and 10% THD 1.8W at 8Ω and 10% THD
I2S Sampling Rate: 8kHz-96kHz
Class D Gain Optional: 3dB/6dB/9dB/12dB/15dB
No master clock (MCLK) required
Plug and Play: 35 different clocks and 128 digital audio formats can be automatically configured with a single power supply.
Suitable for microcontrollers or development board systems with I2S audio output such as ESP32.