Outline of the sound circuit for rpi3

[gazpachero]

Hello friends.
For those who are a bit lost, here is a small outline for the sound of our Game Boy, based on Rpi3. I've tried it on my project and it works perfectly.
I hope it serves you.
A greeting.

[tinkerBOY]

Yes it should work but you might need a low/high pass filter for obviously minimizing some noise.