hi friends
i made a pcb for tda 8954th according to datasheet ,the sound there is , but the coils and IC very quickly be hot!
even there is not any input signal! why?
for 3-6 ohm speakers should be 15uh coils and 680nf capacitor (series to gather to ground)
vcc & vss is +-40 volts.
i made a pcb for tda 8954th according to datasheet ,the sound there is , but the coils and IC very quickly be hot!
even there is not any input signal! why?
for 3-6 ohm speakers should be 15uh coils and 680nf capacitor (series to gather to ground)
vcc & vss is +-40 volts.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Last edited:
i solved the problem myself.
i use yellow core that is wrong. that is not good for this circuit.it needs red (or brown?) core.
i use yellow core that is wrong. that is not good for this circuit.it needs red (or brown?) core.
Last edited:
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