PIFI DAC expansion board (PiFi DAC +) is dedicated for Raspberry Pi 2B/3/B +, which features TI's higher-end DAC chip (PCM5122), I2S interface(non-USB interface). It supports volume controlled by hardware (the old DAC uses PCM5102A chip hardware, which can not support volume controlled by hardware). With this extension board, users can use it with audio playback system (eg: volumio, xbmc system, etc.) to build their own network HIFI player; It provides two kinds of output interfaces, making it easier to connect external amplifiers. Now you can get rid of troubles such as high PC power consumption, slow start and slow shutdown, big power supply noise.
This HiFi DAC + expansion board is designed on the base of the old version B DAC expansion board. The new version has upgraded to higher-end chips and circuits, and added more practical functions, it has higher performance. Thus, it is highly recommended!
Note: The headphone interface is mainly purposed to connect to an external amplifier. Although we have tested and proved that this board can drive most low internal resistance headphone, and a lot of overseas fans use it to directly drive headphones, there is no official data referring it can directly drive headphones. Please note！
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