If you want to build a Bluetooth amplifier with I2S output simply and stream your music from your smartphone, then the TinySine Bluetooth AudioB I2S receiver module is an excellent choice. It is indeed a Bluetooth 4.2 stereo receiver based on a CSRA64215 chip with an I2S output for a quality audio transmission, allowing to support sampling rates up to 16bit 48kHz. The module has two sets of 10 pins, each pin spaced 2mm from the others for easy integration into your project.

In addition, Bluetooth version 4.2 will allow you to achieve very good data transfer rates and the aptX protocol supported by the chip ensures both better signal stability and better synchronization. All this contributes to a much better sound reproduction.

Correspondence table of the module pins

Mounting schema