I'm working on a circuit that switches audio for and MP3 player to Radio.
After doing some testing, I noticed a slight 'hum' when music wasn't being played.
I guess this is a common problem with shared grounds in audio/video equipment.
turns out I need a 'Ground Loop Isolator' Mouser has this, which sounds like it'll do what I want:
https://www.electro-tech-online.com/custompdfs/2011/01/EC100.pdf
But I don't understand how the whole shebang works. Is this isolating the ground? Audio left and right? all? Does it need its own power source?
More questions to come....
After doing some testing, I noticed a slight 'hum' when music wasn't being played.
I guess this is a common problem with shared grounds in audio/video equipment.
turns out I need a 'Ground Loop Isolator' Mouser has this, which sounds like it'll do what I want:
https://www.electro-tech-online.com/custompdfs/2011/01/EC100.pdf
But I don't understand how the whole shebang works. Is this isolating the ground? Audio left and right? all? Does it need its own power source?
More questions to come....