HiFiBerry Digi+ I/O

HiFiBerry Digi is a high-quality S/PDIF card for the Raspberry Pi. It uses the I2S sound port that connects directly to the CPU without the need for an additional USB conversion. It does not only feature an output (optical and electrical), but also inputs (both optical and electrical).

While the Digi+ I/O can be used as a digital input, there are some limitations. These limitations are based in the hardware. Therefore, we recommend the Digi+ I/O only for use cases where you know exactly what your source is delivering.

• Sample rate and bits/sample on the recording application have to be set to match exactly the source format. There is no detection of the sample rate of the source.
• If no source is connected, recording will block. You won’t just record silence, but the whole system might block.

Specifications

• EEPROM for automatic configuration Yes
• SPDIF input TOSLink + RCA
• SPDIF output TOSLink + RCA
• Connectors TOSLink + RCA
• Sample rates 44.1, 48, 88.2, 96, 176.4, 192kHz
• Clock generator Onboard crystal
• I2S output No
• Volume control No
• Access to GPIO Yes
• Galvanic isolation only TOSLink

Comparteble With

• Raspberry Pi A+
• Raspberry Pi B+
• Raspberry Pi 2B
• Raspberry Pi 3B
• Raspberry Pi 3B+
• Raspberry Pi 4B+
• Raspberry Pi Zero