This is a dedicated HIFI Digi+ expansion board (PiFi Digi+) designed for Raspberry Pi 2B/2B+/3B/3B+, using Wolfson's high-end digital chip (WM8804G), using I2S interface, non-USB interface; using this extension After the board, users can build their own network HIFI player with audio playback system (such as: volumio, xbmc system, etc.); the expansion board provides two output interfaces of fiber (S/PDIF) and coaxial (RCA) for external amplifiers and other devices. With it, you can get rid of PC power consumption, slow booting, power supply noise and so on. . . .

1. The digital chip adopts Wolfson's high-end WM8804G chip, adopts I2S interface; supports 16 to 24-bit audio data format; distortion and dynamics are ideal, support high sampling rate of 192kHz, advanced debounce technology can inherent jitter ( Intrinsic period jitter) is controlled within 50ps RMS with very high degree of reduction.

2. The output port is output by optical fiber and coaxial interface, which is convenient for users to connect external amplifiers.

3, support hardware mode to control the volume (I2C interface)

4, the power supply uses Raspberry Pi power supply, no external power supply; and π-type filter power supply design, effectively reduce the interference of power supply

5, using I2S interface direct digital output, high degree of reduction, non-USB interface DAC mode, does not occupy the Raspberry Pi other extended GPIO

6, provide power indicator light, easy to observe the status of the expansion board

7. The PCB board adopts the gold plating process on the tall, and the curved traces (the high-end HIFI DACs adopt the curved traces) to better ensure the impedance continuity of the signal and reduce the signal reflection and refraction.

8, good sound depends on the real material, fiber optic interface using imported HIFI-class high-quality fiber optic seat, coaxial interface using MuRata DA101C digital isolation cattle imported audio isolation transformer in the provision of good digital audio while protecting your audio equipment And board! ! !


FLAC, WAV, MP3, AAC, ALAC, PLS support

-Music libraries on Samba, NFS and USB drives

-Webradios support out of the box

-Control it via integrated Webui with PC, Smartphone, Tablet

-Airplay capability

-Ramplay Support 

-Multiroom Playback via Android App

-Output playback device Selection

-Audio out I2S (from Raspberry pi's P5)

-Wireless Network configuration 

-Various resampling options, up to 24bit/192kHz