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Expansion board and Raspberry Pi 2, A + / B + are without welding, can be used directly
This is one for the Raspberry Pi 2 B type, B + / A + special HIFI Digi + expansion board (PiFi Digi +) design, the use of Wolfson's high-end digital chips (WM8804G), use the I2S interface, non-USB interfaces; use this extension Users can fit the rear panel audio playback system (eg: volumio, xbmc system, etc.) to build its own network HIFI player; expansion board provides optical fiber (S / PDIF) and coaxial (RCA) output interface to facilitate the two external amplifiers and other equipment. With it you can get rid of PC power consumption, boot off slow, large, and so plagued by power supply noise. . . .
1. The company's high-end digital chip Wolfson 's WM8804G chip, using I2S interface; support 16-24 audio data formats; distortion and dynamic are very good, tall 192kHz sampling rate support, advanced shake reduction technology can be intrinsic jitter ( Intrinsic period jitter) controlled within 50ps RMS, the high degree of reduction.
2. The use of optical fiber and coaxial outputs two output interfaces, user-friendly external amplifier
3. Support in hardware volume control (I2C interface)
4. The power supply uses Raspberry Pi power, no external power supply; and the use of π-type filter power supply design, effectively reduce the interference of power supply
5. I2S interface using direct digital output, reducing high non-USB interface DAC mode, do not use other extensions GPIO Raspberry Pi
6. Provide power indicator light, easy to observe the expansion board status
7. PCB board with gold plating on the tall, curved traces (high-HIFI DAC are using curved traces), to better ensure the continuity of the impedance signal, reducing signal reflections and refractions.
8. A good sound thanks to real materials, optical interface using imported high quality fiber seat HIFI level, coaxial interface is used Pluse imported audio isolation transformer at the same time provide good digital audio well protect your audio equipment and board ! ! ! (Cost of similar foreign products have been removed in order, in order to sound good reliability we never begrudge the cost, never cut corners)
9. The integrated infrared receiver function, in the absence of the network, more convenient control playback.
volumio software parameters:
-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
-DSD Native Playback
-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