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mfr  
#1 Posted : Thursday, April 24, 2014 1:44:39 AM(UTC)
mfr

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Hello,

My DAC has a switch and an optical receiver (RX178 5v).

See attached schematic
Schematic

Would this work as an INPUT to the Twisted Pear Audio S/PDIF Receiver? I'm replacing the original DAC old Crystal receiver.

Also would +5v supply be ok? (manual says 7.5v) but regulators are low drop voltage...

Thanks !

Edited by user Thursday, April 24, 2014 2:00:39 AM(UTC)  | Reason: Not specified

Russ White  
#2 Posted : Thursday, April 24, 2014 9:17:00 PM(UTC)
Russ White

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I don't see any reason it should not work.
thanks 1 user thanked Russ White for this useful post.
mfr on 4/25/2014(UTC)
mfr  
#3 Posted : Friday, April 25, 2014 11:38:17 AM(UTC)
mfr

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Well, the original circuit was feeding the CS8412 and did not have the divider 680R and 100R in the way. The divider was added in preparation to installing a 3.3v receiver, which never got done.

Somehow, that looks wrong. I think the TORX178 output could go directly into the SPDIF or the divider should be the other way around 100R in series, 680R to ground. That would make sense bringing 4volts to 3.3v or so.

Originally Posted by: Russ White Go to Quoted Post
I don't see any reason it should not work.


Russ White  
#4 Posted : Saturday, April 26, 2014 3:22:27 PM(UTC)
Russ White

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I would leave it as it shows, the divider is getting the level down to around consumer level, not 3.3V
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