Raspberry Pi HIFI DAC PCM5122 Expansion Board Audio Module For Raspberry Pi

Raspberry Pi HIFI DAC PCM5122 Expansion Board Audio Module for Raspberry Pi 3 Model B+ Plus / Pi3 / 2B / B+. Overview:

The Raspberry pi mother board has one major problem with audio interface. The clocks coming from CPU can only output one frequency clock perfect, resulting in major problwith audio files sampled at 44khz and multiple. Too much jitter on clocks. So we enter the master mode for . Instead of the RPI giving the clock on the line, the DAC its sends the clocks and RPI sends the data (file tobe played). Since we used 2 clocks the problem above solved.

RPI-HIFI-DAC is unique, because of the way we have implemented the design. First we separated the power on 3 channels and filter it: one for the digital side, the second for analog and third for the clocks themselves. We use some of the good brand LDOs on the market. In addition, we used two oscillators with very low jitter for clock units. Finally, on the analog stage we are using a film capacitor (not ceramic) for a quiet DC to feed the TI IC to reduce signal distortion.

Features:

Dedicated 384kHz/32bit high-quality DAC PCM5122 for best sound quality.

Audio output connectors: 2xA (LEFT &Right) &3.5mm head phone Jack.

With 138mw headphone Amplifier can directly drive headphone.

Work status indicators facilitate the understanding of the system working status.

HAT size.

DAC SNR is 112Db .

DAC THD+N @ -1 dBFS -78dB.

Full Scale Output of DAC is 2.1Vrms.

Dynamic Range of DAC is 112dB

Sampling Frequency ranges from 8kHz to 384kHz

Ultra-low noise voltage regulators for optimal audio performance.

Integrated EEPROM for automatic configuration(Option).

Automatically switching frequencies according to the input signals.

Dual low jitter crystal oscillators for Master Clock generation.

Infrared e control connector (using GPIO26).

DAC output coupled with Film capacitor .

Hardware connection:

Connect the RPI-HIFI-DAC module and RPI with 40 pin connector .While installing the module, please pay attention to align the first leg of the raspberry pi and RPI-HIFI-DAC module.

Software Installation: RPI-HIFI-DAC module compatible with many Raspberry pi music playback system such as: OSMC / Max2Play / RuneAudio / Volumio / Moode / PiCorePlayer / PiMusicBox / OpenELEC etc. The user can choose a suitable for their own . Packing List: ( No te: The raspberry pi are not included in all bundles. ) Bundle 1: Raspberry Pi HIFI DAC PCM5122 Expansion Board Bundle 2: Acrylic Case for Raspberry Pi HIFI DAC PCM5122 Expansion Board

About shipping
Shipping and Packaging All itwill be double checked and well packed before sending.Itwill be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

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