In referenz to "How to Add Audio Outputs to your Pi Zero"

[utnefgnvuefn]

Hallo,

First, I hope I posted it in the correct Forum.

I am thinking about building an audio output to my Nanopi Neo. I thought this soundcard https://learn.adafruit.com/assets/28850 wich is an enhanced version from here https://learn.adafruit.com/introducing- ... io-outputs would suite my need most perfectly.

The only problem is, that I do not understand, what the 'DAC_2' connector is. Maybe one of you is able to help me :)

[adafruit_support_carter]

It's the component video out. For audio, you can ignore it.

[utnefgnvuefn]

Thank you for the answer!

So I can ignore the whole part with the COMPVID and BAV99?

Unfortunately I came upon two more questions.

First, what are PP25 and PP26?

Second, where do I get the 2.5V for the AUD_2V5? There is no 2.5V GPIO, as far as I know. Would a simple voltage regulator work?

[adafruit_support_carter]

So I can ignore the whole part with the COMPVID and BAV99?

For what you are trying to do, yes.

First, what are PP25 and PP26?

Test pads. In general, you can ignore those as well.

Second, where do I get the 2.5V for the AUD_2V5? There is no 2.5V GPIO, as far as I know. Would a simple voltage regulator work?

Dunno. Must come from somewhere on the board that's not shown in the schematics:
https://www.raspberrypi.org/documentati ... matics.pdf

[utnefgnvuefn]

Thank you very much for your help!

I posted a question at the raspberrypi.org forum.