I just finished my first amp, based on TDA1558Q, "2 X 22 W or 4 X 11 W Single-ended Car Radio Power Amplifier"
It sounds great but the problem is that if I connect it to anything else than my old ipod (classic white model with metal back) there is white noise/static at even volume, very noticable when you stop the music or play soft. So far I tried at different friends houses with an ipod shuffle, portable cd player and 2 laptops.
I rebuilt it on breadboard and tried both the 2x22W (Bridged) and 2x11W circuit, same result. I must be doing something wrong. What could be the source of the noise?
TDA1558Q data
It sounds great but the problem is that if I connect it to anything else than my old ipod (classic white model with metal back) there is white noise/static at even volume, very noticable when you stop the music or play soft. So far I tried at different friends houses with an ipod shuffle, portable cd player and 2 laptops.
I rebuilt it on breadboard and tried both the 2x22W (Bridged) and 2x11W circuit, same result. I must be doing something wrong. What could be the source of the noise?
TDA1558Q data