This is an OEM DAC specifically addressing the needs of business customers. It combines a high quality 192kHz/24bit audio DAC and and RTC module. The real-time clock allows to set the time of the Raspberry Pi even if no network connection is available.
We have a limited number of these boards available. For business projects requiring a larger number of these boards, please contact us. We can customise the board to your specific requirements.
The board comes without a battery. The battery is a standard CR1220 cell.
Configuration for the RTC chip can be found
Note that the DAC does not have a hardware volume control.