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I2S output to Denafrips Pontus

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I2S output to Denafrips Pontus
Reddo84 Offline
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#1
02-13-2021, 11:08 AM
I'm currently researching DACs. In the moOde Audio Config drop-down menu for "I2S Audio Device", the Denafrips Pontus R2R DAC comes up, which is not a HAT but a standalone DAC unit. 

How would one connect this to a Raspberry Pi? Would the Pi's HDMI put out I2S then? Any Idea if this also works with the current Pontus II model?
- moOde 7.0.1
- Allo USBridge Signature (Ethernet)
- Streaming Tidal to device via Bubble-UPnP (Android smartphone)
- miniDSP 2x4 HD (connected via USB of course)
- 24" monitor connected via the USBridge's HDMI output
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ChumAudio Offline
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#2
03-03-2021, 12:06 PM
(02-13-2021, 11:08 AM)Reddo84 Wrote: I'm currently researching DACs. In the moOde Audio Config drop-down menu for "I2S Audio Device", the Denafrips Pontus R2R DAC comes up, which is not a HAT but a standalone DAC unit. 

How would one connect this to a Raspberry Pi? Would the Pi's HDMI put out I2S then? Any Idea if this also works with the current Pontus II model?

Dear Reddo84,

I am using Denafrips PONTUS II DAC with Moode Audio 

You can not use the Pi's HDMI Out to I2S Input on Denafrips PONTUS as it is a different function, but you can use the Pi's USB connection though.

Should you want to use the PONTUS I2S input then you would need to use a DDC (Digital to Digital Converter)

Denafrips has Iris DDC which take USB in then convert it to I2S Out with FIFO Reclocker on board

For me, i build my own DDC using Ian Canada Board

Hope it helps
Best
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TheOldPresbyope Offline
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#3
03-03-2021, 07:16 PM
(03-03-2021, 12:06 PM)ChumAudio Wrote:
(02-13-2021, 11:08 AM)Reddo84 Wrote: I'm currently researching DACs. In the moOde Audio Config drop-down menu for "I2S Audio Device", the Denafrips Pontus R2R DAC comes up, which is not a HAT but a standalone DAC unit. 

How would one connect this to a Raspberry Pi? Would the Pi's HDMI put out I2S then? Any Idea if this also works with the current Pontus II model?

Dear Reddo84,

I am using Denafrips PONTUS II DAC with Moode Audio 

You can not use the Pi's HDMI Out to I2S Input on Denafrips PONTUS as it is a different function, but you can use the Pi's USB connection though.

Should you want to use the PONTUS I2S input then you would need to use a DDC (Digital to Digital Converter)

Denafrips has Iris DDC which take USB in then convert it to I2S Out with FIFO Reclocker on board

For me, i build my own DDC using Ian Canada Board

Hope it helps
Best


Not that I'll ever have one, but the Denafrips website offers this spec for the Pontus

Quote:Digital Input

  Coax 1 via RCA
  Coax 2 via BNC 75 Ω
  TOSLink x 1
  AES EBU x 2
  USB
  I²S via HDMI LVDS / RJ45 LVCMOS



Regards,
Kent
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vinnn Offline
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#4
03-03-2021, 08:14 PM (This post was last modified: 03-03-2021, 08:32 PM by vinnn.)
(02-13-2021, 11:08 AM)Reddo84 Wrote: I'm currently researching DACs. In the moOde Audio Config drop-down menu for "I2S Audio Device", the Denafrips Pontus R2R DAC comes up, which is not a HAT but a standalone DAC unit. 

How would one connect this to a Raspberry Pi? Would the Pi's HDMI put out I2S then? Any Idea if this also works with the current Pontus II model?

You would be able to connect via USB which will achieve the highest capabilities of the Pontus.
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