JustBoom Digi Zero pHAT

The JustBoom Digi Zero pHAT adds a high-quality digital audio output to the Raspberry Pi Zero.

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Special Price €34.99 Regular Price €39.99
Incl. 16% VAT, excl. Shipping Cost

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Hardware on display tested and optimally supported by Max2Play

We offer the suitable hardware for DIY-solutions and to expand existing systems


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The Just Boom Digi Zero pHAT has a digital audio chip made by Cirrus Logic with 192kHz/24 bit for a bit-perfect digital ouput, an output transformer for full galvanic isolation and an optical (TOSLink) as well as a coaxial (RCA) output. With this combination the Zero-version of the Justboom Digi sound card offers an uncompromizing and high-quality audio experience. The sound card is powered by the Raspberry Pi, so it doesn't need an external power supply. It can be equipped with additional buttons, sensors, LEDs and rotary encoders.

At a glance

  • No soldering required
  • Easy and intuitive setup with the Max2Play plugin
  • Powered by the Raspberry Pi Zero
  • Bit-perfect digital output
  • Optical (TOSLINK) and coaxial (RCA) audio output
  • output transformer for full galvanic isolation
  • Dedicated S/PDIF transceiver (Cirrus Logic WM8804GEDS) with 24bit / 192khz
  • Compatible with Raspberry Pi Zero and Zero W
  • Compatible with the JustBoom Digi Zero Case
  • Mounting material included in shipment
  • Optional Vishay TSOP4838 IR-receiver included in shipment

Technical details

  • 112db SNR and -93db THD for Best-in-Class audio
  • Advanced ESD-protection for headphone and chinch outputs
  • Completely integrated hardware volume mixer via "ALSAmixer" or an ALSA-compatible application
  • Murata Power Solutions DA101JC Audio Digital transformer
  • Dedicated S/PDIF transceiver (Cirrus Logik WM8804GEDS) with 24bit / 192khz
  • Dimensions (LWH): 65mm * 40mm * 13mm
  • Weight: 0.01kg

Content of delivery

  • JustBoom Digi Zero pHAT
  • 4 spacers and 8 screws
  • Vishay TSOP4838 IR-receiver

With a purchase of this product you receiver an additional Max2Play premium test lcense (Runtime 3 months).
Additional information about the premium features you can find here.

Plug & Play with Max2Play

Max2Play offers a browser-based administrator interface for Raspberry Pi based on Linux. With Max2Play you can install and administer applications (Max2Play Addons) on a Raspberry Pi without knowledge about Linux. The Raspberry can be controlled via smartphone, tablet, laptop or any other device in your network, no mouse and keyboard are needed. A dedicated Justboom plugin is available.

More Information
Chipset Cirrus Logic WM8804GEDS
KHz/ Bitrate 192KHz/ 24 Bit
Signal-to-noise ratio -
Output RCA digital, TOSLink (optical)
Output power (RMS) -
Clock generator -
Additional connections I2S Header (12 Pins)
dedicated Connection for infrared receiver Yes (soldering required)
dedicated connection for rotary encoder -
Hardware features galvanic isolation
ALSA controls for soundcard (driver) -
Max2Play software features Justboom Plugin
Power supply micro-USB of Raspberry Pi
PDF Data Manufacturer -
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