IQaudio DAC Pro is our highest-fidelity audio output HAT. It uses the Texas Instruments PCM5242 DAC to deliver outstanding signal-to-noise ratio performance from a Raspberry Pi 1 Model B+, 2, 3, and 4, and supports balanced/differential output in parallel to phono/RCA line level output. It also includes a dedicated headphone amplifier.
Getting started
IQaudio DAC Pro connects to the 40-pin GPIO header of Raspberry Pi 1 Model B+, Raspberry Pi 2, Raspberry Pi 3, or Raspberry Pi 4 with no need for soldering or external power.
DAC Pro exposes two 3-pin headers (P7/P9) used by the optional XLR board to provide differential/balanced output exposed by XLR sockets above Raspberry Pi’s USB/Ethernet ports.
P1: Analogue out (0-2V RMS). Carries GPIO27, MUTE signal (headphone detect), left and right audio, and left and right ground.
P6: Headphone socket signals. Pin 1: LEFT, pin 2: GROUND, pin 3: RIGHT, pin 4: GROUND, pin 5: DETECT
P7/9: Differential output (0-4V RMS). P7: LEFT, P9: RIGHT.
P10: Alternative 5V input, powering the Raspberry Pi in parallel.
Documents
IQaudio product brief
Compliance
IQaudio DAC Pro has undergone extensive compliance testing and meets the standards required in many countries. You can find all compliance information and regional certificates at raspberrypi.org/compliance.
Obsolescence Statement
IQaudio DAC Pro will remain in production until at least January 2026
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