RPI HAT AMP

A Class-D amplifier for your Raspberry Pi

View the Project on GitHub

RPI HAT AMP TAS5756

A Class-D amplifier for your Raspberry Pi

Assembled image

Rev 02

RPI_HAT_AMP_02_TOP RPI_HAT_AMP_02_BOT

Revision 02 has been updated with a cheaper power supply with a wide input range.

Rev 01

RPI_HAT_AMP_01_TOP RPI_HAT_AMP_01_BOT

The board is designed around the Ti TAS5756 Class D amplifier. It also features an I2C EEPROM, Ti TMP112 I2C temperature sensor, some useful IO connectores, a FET connected to a PWM ouput and a Ti LMZ23603 Simple Switcher module capable of providing 3A on the 5V rail.

Possible improvements

Setup your RPi

For our setup we use Volumio coupled with a little bit of Pyhton code to run everything. First things first, get yourself a running Volumio system by following their manual. Once the board is up and running you can start the configuration needed for the amplifier.

Optional IO expansion

You can stack a PCB on the anplifier with 16 extra IO pins. This board is based on the MCP23017 which is a 16 bits I2C IO expander. It has native support in Wiring Pi. You can stack more than one since the expander has multiple address pins. Just make sure you don’t use the same address twice.

Pictures

Oven image IC image