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TPA6120+OPA headphone amp info needed
TPA6120+OPA headphone amp info needed
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Old 6th November 2017, 07:44 AM   #11
Samsara is offline Samsara  France
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Join Date: May 2011
uPC1237 detect DC voltage at output, if there's voltage it disconnect the relay.
It has also mute ON.
https://www.promelec.ru/pdf/upc1237ha.pdf

So,add simple relay is useless.
You must find IC for DC protection.

I don't know where you live but the complete TPA6120A2 board come in two week to France.
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