linh0983
Well-Known Member
Chú PecanPi dac này dùng driver trùng với FifoPi bác Minh a .
https://img1.wsimg.com/blobby/go/80cc3d69-5af5-47d4-a047-53c1246a6080/downloads/PecanPi DAC and Kit Instructions.pdf?ver=1570451688081
https://orchardaudio.com/pecanpi
PecanPi DAC
The PecanPi DAC is an ultra-high performance next generation DAC for the Raspberry Pi.
Specifications for XLR Output:
Implementation Details:
https://img1.wsimg.com/blobby/go/80cc3d69-5af5-47d4-a047-53c1246a6080/downloads/PecanPi DAC and Kit Instructions.pdf?ver=1570451688081
https://orchardaudio.com/pecanpi
PecanPi DAC
The PecanPi DAC is an ultra-high performance next generation DAC for the Raspberry Pi.
Specifications for XLR Output:
- Signal to Noise Ratio (SNR): 130dB (A-weighted)
- Dynamic Range (DNR): 125dB
- Total Harmonic Distortion + Noise (THD+N): -110dB or 0.0003%
- Output Voltage: 5Vrms
- Signal to Noise Ratio (SNR): 124dB (A-weighted)
- Dynamic Range (DNR): 121dB
- Total Harmonic Distortion + Noise (THD+N): -110dB or 0.0003%
- Output Voltage: 2.5Vrms
- 390mW peak power into 32 ohms
- 780mW peak power into 16 ohms
- Sampling Rates: PCM up to 192kHz
- Bit Rates: Up to 24-bit
- Formats: Supports all formats including DSD.
- Compatible Rpi Models: 1B+, 1A+, 2B, 3B, 3B+ Zero, ZeroW
- Optional Case Size: 125mm (5") x 125mm (5") x 70mm (2.8")
Implementation Details:
- DAC chips:
- Dual flagship Burr-Brown PCM1794As in monaural mode
- Digital HW Volume Control and Re-clocking:
- Output stage: True balanced dual different output stages
- Uses OPA1612s
- Low Noise Panasonic Resistors
- Proprietary filtering topology
- Ultra low noise analog power supplies:
- Headphone driver:
- Dual parallel OPA1622s