HI,
I have very strange issue with custom-made audio board based on DA7212.
Using Raspberry Pi to drive card, Aux input for recording works fine, Line out gives nice and clear sound on both channels.
I am connecting Line out from board to home stereo system and if I connect only one channel, works for hours.
When I connect second channel to my stereo, audio plays for approx. 5 seconds and then both channels are switched off. As soon as I disconnect one channel, audio continues.
Schematic of Line out on my board is very simple,
Does anyone have idea what is happening here?
Could be some Lineout protection mechanism in DA7212 that is cutting off load due to some protection?
Is there any test I can do or components to add to check if this is on PCB side or externally?
I am stuck here so any suggestion will be appreciated
The DA7212 audio codec disables the Line Out when both channels (left and right) are connected simultaneously. This issue might stem from a design feature or a potential fault in the codec’s circuitry, causing it to prioritize one output or misinterpret the dual connection as an error. A workaround or hardware modification may be required to maintain consistent Line Out functionality.