Hi,
I am using TDA3118D2 in a 2.1 stereo system. I suffer from audible distortion - especially noticeable when playing piano Music - kind of high frequency noise >5kHz.
I supply the amp with 20VDC which should give enough head room and the load is a peerless 3inch fullrange driver with high quality.
I run the highest gain and no power limit.
I have a very simple output filter - a ferrite bead of 150ohm followed by a 1nF/50V/COG cap to ground on each output terminal.
Please help me to find the cause of my distortion. Is it the output filter that causes the noise?
Thanks in advance
Markus