Raspberry Pi IQaudio DAC+ HAT

The IQaudio DAC+ expansion card provides audio output for the Raspberry Pi. It uses a Texas Instruments PCM5122 DAC to deliver analog stereo audio to a pair of headphone jacks, and also supports a dedicated headphone amplifier.

It is compatible with the following devices: Raspberry Pi 1 Model B+, Raspberry Pi 2, Raspberry Pi 3, or Raspberry Pi 4.

The IQaudio DAC+ expansion card connects directly to the Raspberry Pi's GPIO connector and does not require an additional power supply.

P1: analog output (0-2 V RMS). Carries GPIO27, MUTE signal, left and right channel, and left and right ground.

P6: headphone jack signals. Pin 1: left channel, pin 2: EARTH, pin 3: right channel, pin 4: GROUND, pin 5: DETECT

Elements of the board:

Power LED - power indicator light

Raspberry Pi GPIO header - GPIO connector

HAT EEPROM Write Enable - EEPROM for HAT devices is a possibility for writing

Headphone Socket - connectors for headphones

Phono (RCA) Output - audio output