Hi all,
I am looking for an ebay cheap board with a classD balanced input. preferably a balanced input featured in the chip input pins with the board actually implementing it (near as manufacturer design recommandation) .
anyone ever seen one ?
PS : nxp and stm chipamps have those differential input pins but I rarely see chinese board featuring it (15-40$)... is there a easy workaround diy tip to modify some of these boards?
I am looking for an ebay cheap board with a classD balanced input. preferably a balanced input featured in the chip input pins with the board actually implementing it (near as manufacturer design recommandation) .
anyone ever seen one ?
PS : nxp and stm chipamps have those differential input pins but I rarely see chinese board featuring it (15-40$)... is there a easy workaround diy tip to modify some of these boards?
Why not use a standard Op Amp configured to balanced input, volume control goes directly after it and feeds a class D amplifier.
Flying Mole use that system very successfully.
Flying Mole use that system very successfully.
thanks :
because to me it would be easier and nicer built in as often these chips feature them. reducing signal parts count complexity. (in the less is more way).
but thanks for mentioning that : using opamp output adding its inverting and non inverting inputs ? problem is I need to add and mount that on an chinese board...
because to me it would be easier and nicer built in as often these chips feature them. reducing signal parts count complexity. (in the less is more way).
but thanks for mentioning that : using opamp output adding its inverting and non inverting inputs ? problem is I need to add and mount that on an chinese board...
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