• Full driver support in Raspbian / NOOBS
  • Optional IR receiver included in package
  • Mounting hardware included
  • Compatible with Raspberry Pi Zero and the new Pi Zero Wireless
  • Powered by the Raspberry Pi GPIO header
  • No soldering required
  • Software volume control from your Raspberry Pi
  • Plug and play compatibility for ease of use
  • Output transformer for galvanic isolation
  • Low jitter, bit-perfect digital output
  • Digital audio output over either optical (TOSLINK) or coaxial (RCA electrical) connectors
  • Dedicated S/PDIF output interface chip supports up to 192kHz / 24bit resolution

The JustBoom Digi Zero pHAT for the Raspberry Pi Zero is a high resolution digital audio output add-on board for the Raspberry Pi Zero and Pi Zero W. The HAT produces a high-quality audio data stream that will not be negatively affected in any way.

We’ve designed the JustBoom Digi pHAT to be simple to install and use. With no soldering required and all the mounting hardware already provided you can be up and running in moments. We also include an optional IR receiver to allow remote control operation of your Raspberry Pi. It is also powered directly from the GPIO header so no extra cables or power supplies are required to connect to the Raspberry Pi.

    Use cases

    • Streaming high-definition audio player
    • Multi-room audio player

      Technical Information

      • Dedicated S/PDIF interface chip supports up to 384kHz / 32bit resolution
      • Cirrus Logic WM8804GEDS S/PDIF Transceiver
      • Murata Power Solutions DA101JC Audio Digital Transformer
      • Fully integrated hardware volume mixing via alsamixer or any ALSA compatible application
      • Optional Vishay TSOP4838 IR receiver (solder yourself if required)
      • 112db SNR and -93db THD for best-in-class audio


      In The BoxDigital audio card Mounting hardware Optional IR receiver
      Form FactorCard
      Card TypeCircuit Board
      Number of Supported Devices1
      Compatible WithCompatible with Raspberry Pi Zero v1.3 and Wireless
      ChipsetCirrus Logic WM8804GEDS S/PDIF Transceiver
      Power SupplyRaspberry Pi GPIO header
      External Connectors1 x TOSLINK 1 x RCA
      Total Number of Connectors2
      Plug and PlayYes