v32

10

10-Dec-2020

8. DigiAMP+

DigiAMP+ is a HAT compliant add-on accessory for the Raspberry Pi.

DigiAMP+ uses the Texas Instruments TAS5756M PowerDAC to deliver direct connection to

PASSIVE stereo speakers at up to 2x35wpc with variable output. Ideal for a Pi based HiFi.

DigiAMP+ can be connected to the Raspberry Pi A+/B+/RPi2/RPi3 or RPi4's 40way pin header

without any additional soldering.

DigiAMP+ must be powered from an external supply and requires a 12 to 24DC power source to

operate. DigiAMP+

’s barrel connector is 5.5mmx2.5mm. DigiAMP+ has been designed to provide

power to the Raspberry Pi and DigiAMP+ combination in parallel, delivering 5.1v @ 2.5Amp to the Pi.

DO NOT APPLY POWER TO THE RASPBERRY

PI’s OWN POWER INPUT WHEN USING

DIGIAMP+.

The amplifier is by default muted at power on (mute LED lit). The mute state / LED is under software

control (Raspberry Pi GPIO22).

Power LED

Mute LED

Raspberry Pi GPIO Header

HAT EEPROM Write Enable

Power In (12-24v)

Speaker Terminals

P5: Alternative power input for hard wired installations. POLARITY MUST BE OBSERVED!

P8: TAS5756m Internal GPIO1/2/3