TDA8566Q / TDA1562Q questions

RicY

Member
2009-10-18 10:47 am
Hello,

I have got some BMW Hifi DSP amps lyinig around for some time. They have got no optical converter parts or heatsinks, only the amp section, so they are just for parts. There are some tda8566q and tda1562q chips in there, that got my mind going for making a simple 12VDC powered amp, but reading the pinouts i got to a problem.

Theese chips have diagnostic/mode switching outputs. Does it mean that the chips cant be powered without a microprocessor thingy? And other thing is the tda1562q has IN+, IN-, Sgnd pins. What for is the Sgnd pin?

Sorry for grammatical mistakes.
 

RicY

Member
2009-10-18 10:47 am
Ok. Kinda got it. Drew a schematic based on my understanding and some internet digging.
 

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