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Martin_B  
#1 Posted : Friday, April 3, 2015 8:45:51 PM(UTC)
Martin_B

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Joined: 3/29/2015(UTC)
Posts: 3
Germany

Trying to connect SPDIF output from 4:1 MUX/Receiver with SPDIF input from Geek Pulse DAC/HPA I get no connection.
Seems like Geek's input needs higher SPDIF voltage level.

I changed the voltage divider R2/R3.
R2 = removed
R3 = 0R

I get signal level 3.3V P-P when not conneced to Geek and
1,3V P-P when connected to Geek.

Seems to work fine that way.
Is it correct to do it this way, or should a SPDIF level converter be used?

Regards Martin

Edited by user Friday, April 3, 2015 9:01:40 PM(UTC)  | Reason: Not specified

Russ White  
#2 Posted : Thursday, April 9, 2015 7:00:32 PM(UTC)
Russ White

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Sounds like the Geek has a very low input impedance - it i expecting consumer level or CMOS(3.3V)?
Martin_B  
#3 Posted : Wednesday, April 15, 2015 12:18:56 PM(UTC)
Martin_B

Rank: Member

Groups: Member
Joined: 3/29/2015(UTC)
Posts: 3
Germany

Sorry the description was wrong.
I had tried so many different things so I was quite confused.

It is not the Geek causing this "problem" ist is a miniShark DSP from miniDSP.com which is expecting CMOS (3.3V).

I solved it with a level converter.

btw. what are the original values R2/R3 (schematic on website is out of date)

Regards Martin

Edited by user Wednesday, April 15, 2015 12:26:35 PM(UTC)  | Reason: Not specified

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