TTL Level SPDIF
Make sure the SPDIF switch is open. Connect TTL level SPDIF signals to D1 and GND at the input
terminal block.
TTL Level I2S
Make sure the SPDIF switch is open. Connect I2S signals as follows:
Source GND
→
GND
Source Bit Clock
→
DCK
Source Word Clock(LRCK)
→
D1
Source Data
→
D2
TTL Level DSD
Make sure the SPDIF switch is open. Connect DSD signals as follows:
Source GND
→
GND
Source Bit Clock
→
DCK
Source Data 1(usually left)
→
D1
Source Data 2(usually right)
→
D2
Using External Controllers
When using an external controller on the I2C bus (Volumite for example) it is required to remove the on-
board controller otherwise the on-board controller will interfere with communication from the external
controller.
Optional Features
The following are not recommended nor supported, but as some of you will want to tinker I am making this
information available. If you decide do this do not expect any support should your DAC fail. You are on
your own.
To use external supplies remove the ferrite bead located on the bottom side of the PCB for the supply you
wish to make external.
VDD(1.2V) remove L6
VDD_XO(3.3V) remove L7
DVCC (3.3V) remove L8
Once you have removed the ferrite bead you can supply each voltage at the marked pin header. For
convenience I added a pad for VD at each header.
