Hello,
I have recently build few portable amps with speakers to be used with batteries. The chip is TPA3122D2 and I use 2Ah batteries.
It works quite well, but I have problem when I connect two of them with one ground. When I move my hand above the speaker cone or around control, I get quite loud digital noise coming out of the system. It happens only when two or more connected together - one is dead silent, no matter where I put my hand.
Any ideas?
Thanks,
Jonas
I have recently build few portable amps with speakers to be used with batteries. The chip is TPA3122D2 and I use 2Ah batteries.
It works quite well, but I have problem when I connect two of them with one ground. When I move my hand above the speaker cone or around control, I get quite loud digital noise coming out of the system. It happens only when two or more connected together - one is dead silent, no matter where I put my hand.
Any ideas?
Thanks,
Jonas
Can you show how everything is hooked up during these conditions?
If you don't have any drawing SW then use MSpaint and save as .jpg
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