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Connecting Digi+ to specific Dac

Mateusz Świątkowski

September 29, 2014 20:17

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Hey.
I just bought Digi+ from Your store. It is being shipped to me right now. I want to connect it to external DAC. This one:
http://www.ebay.com/itm/SABRE-HI-END-DAC-24bit-192khz-with-ES9023-WM8804-and-i2s-input-diy-DAC-/271259596887?pt=UK_AudioTVElectronics_HomeAudioHiFi_Amplifiers&hash=item3f2854f857
I couldn`t use I2s connection directly to that DAC from RPi beacuse of lack MCLCK output in RPi. Thats where Digi+ come.
1st. One output is toslink (black and white), what thing is that second output (whole white)?
2st. What is the best way to connect HiFiBerry with this DAC. I want internal connection without connector.

Thanks in advance.

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4 comments

• 0
  
  hifi September 29, 2014 21:30

  Hi,
  
  Using the timezone difference I will try to answer your questions
  before Daniel will do that ;)
  
  According to Daniel when you are connecting to I2S in RPi you will
  also need a driver for your I2S device (DAC in your case). See the
  discussion here:
  http://www.hifiberry.com/forums/topic/digi-or/
  
  As you know SPDIF connection can be either optical
  (black cubical connector with white "door" on Digi+) or coaxial.
  The latter is that white round connector next to the optical one.
  
  If you really want to connect your DAC using SPDIF (not I2S) you can
  do that like I did that in my player (connected Digi+ to the SPDIF
  connector on the back panel):
  http://www.hifiberry.com/forums/topic/raspberry-pi-b-digi-player/
  just solder two wires to that coaxial white connector on the
  soldering side. One wire is signal the other is ground. And connect
  those two wires to SPDIF input on your DAC.
  
  If you don't want to solder you can create short cable with two RCA
  connectors on both ends. One end you connect to white SPDIF connector
  on Digi+ the other end to SPDIF connector on your DAC.
  
  Hope this helps.
  Regards.
• 0
  
  Mateusz Świątkowski September 30, 2014 14:16

  Hey,
  Thanks for you help.
  Connecting I2S directly to this DAC won`t work. Understood.
  No matter what then, my only possible connection with external DAC is via SPDIF (optical or coaxial). Am I right?
  
  Cheers.
  
  
• 0
  
  hifi September 30, 2014 16:55

  That's right. Overall this is the main purpose of the Digi+ board -
  convert I2S to SPDIF. It looks like Digi+ itself doesn't change the
  audio signal (PCM) during this conversion. See the discussion here:
  http://www.hifiberry.com/forums/topic/is-digi-bit-perfect/
  
  Regards.
• 0
  
  HiFiBerry team September 30, 2014 18:48

  Thank you hifi, you're totally right.
  
  Best regards
  Daniel