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ktnaveenkspet 21st January 2013 04:18 PM

TDA8950J hiss noise
Dear friends:

I had done an amplifier using TDA8950 ,+/-16vDc rail to rail power supply . Soldered on PCB using the application circuit provided on datasheet.

But the problem is at the output the resistor 10ohm tesitor heats up ,and the sound on the woofer has more hissing ,then the music.

Tell me what may be the problem.


nigelwright7557 21st January 2013 11:15 PM

What have you got as an output filter ?

ktnaveenkspet 22nd January 2013 01:56 PM

1 Attachment(s)
Earlier I had done this circuit for amplifier ,it was working fine. Now again I have done one more PCB[soldered in Gerenal purpose PCB] using this TDA8950 .

The circuit as in Attachment .
Please, see.

razEG 8th May 2013 01:40 AM

Do you still need help with your problem?

DUG 8th May 2013 03:14 AM

one of the CSN caps probably shorted.

my guess


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