Raspberry Pi dedicated HIFI audio expansion board
Compatible with all 40-pin GPIO Raspberry Pi, using standard I2S and I2C interfaces, compatible with multiple system kernels, including dedicated playback systems such as VoluMio
Adopting low-dropout two-stage LDO for voltage regulation, significantly improving the power supply quality of the system, and using multiple large-capacity polymer electrolytic capacitors to reduce ripple, providing high-quality power supply comparable to independent linear power supply, and improving the quality of digital signals
This device features four synchronous outputs: one SPDIF coaxial, one optical, one analog audio RCA, and one headphone output. It provides high-quality coaxial signals while also directly outputting IFI-level analog audio, which can be directly connected to an amplifier. It has a reserved headphone jack that can directly drive monitoring headphones. The headphone jack is vertically upward, which does not affect other functions of the Raspberry Pi and is convenient for plugging and unplugging.
High-quality HIFI components and digital-analog separate grounding
ELNA SILMIC II. second-generation silk film audiophile electrolytic capacitors are used for decoupling, with a rich analog flavor and smooth listening experience.
The design of separate grounding for digital and analog circuits reduces crosstalk and enhances sound quality.
The coaxial output section uses a dedicated digital transformer for isolation, ensuring insulation between the Raspberry Pi and the subsequent equipment and protecting the Raspberry Pi motherboard from static shock from the subsequent devices.
