This is a simple circuit that can be used to test I2S input to a small Class D amplifier.
The amplifier used is the Maxim Integrated MAX98357A (LRCLK Polarity = Low).
Outputs are filterless, however a Ferrite Bead Filter is included on the output to support longer speaker cable runs.
I've included a simple multipin header to allow experimenting with selecting different gain settings of the amplifi...
ESP32-WROOM-32 is a powerful, generic Wi-Fi+BT+BLE MCU module that targets a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding.
At the core of this module is the ESP32-D0WDQ6 chip*. The chip embedded is designed to be scalable and adaptive. There are two CPU cores that can be individu...