Pi-DigiAMP+

The IQaudIO Pi-DigiAMP+ is a HAT-compliant DAC and amplifier board for the Raspberry Pi, combining a high-quality 24-bit/192 kHz DAC with a 2×20W Class D stereo amplifier on a single board. Based on the Texas Instruments TAS5756m chipset, it delivers full-HD audio quality with no soldering required.

The board connects directly to the Raspberry Pi's GPIO header using digital I2S audio, reducing CPU load compared to USB audio solutions. When powered externally, the Pi-DigiAMP+ also supplies power to the Raspberry Pi. Driver support is built into Raspbian and compatible with popular audio distributions.

Key Features

• Full-HD Audio – Up to 24-bit / 192 kHz playback
• 2×20W Class D Amplifier – Direct speaker output, no external amp needed
• TAS5756m DAC – High-quality Texas Instruments chipset
• HAT Compliant – EEPROM auto-configuration, standard mounting holes
• Powers the Pi – External PSU powers both the amp and the Raspberry Pi
• Hardware Volume Control – Integrated ALSA volume control
• I2S Audio – Digital connection reduces CPU load vs USB audio
• GPIO22 Mute Control – Software-controllable amplifier mute
• I/O Access – Additional GPIO signals for IR sensors, rotary encoders, I2C devices

Specifications

• DAC Resolution – Up to 24-bit / 192 kHz
• Amplifier – 2×20W Class D stereo
• Chipset – Texas Instruments TAS5756m
• Audio Interface – I2S (via GPIO header)
• Mute Control – GPIO22 (muted on power-up by default)
• Power – External supply required (powers Pi in parallel)
• Compatibility – Raspberry Pi 3, 2, A+, B+ (not compatible with original Model A/B)
• ESD Protection – Advanced on-board protection

Compatible Software

• Raspbian (built-in driver support)
• RuneAudio, Volumio, Moode, PiCorePlayer, PiMusicBox, OpenELEC

Ideal For

• Standalone Hi-Fi systems
• Retro radio restorations
• Portable boom boxes and in-car audio
• Kiosk and display audio solutions

Package Contents

• 1× IQaudIO Pi-DigiAMP+