Hi every one, i bought a pam8610 module the other day, just a black pcb without volume knob or any other kind of control, I decided to take a look at the datasheet of the chip to see if it had sepperate negative differentials, and it does, but while i was looking at the pcb of the module I noticed that the actual right and left inputs are connected to the negative differential of each channel and the positive differential of both of them are connected to ground, I don't know much about audio so i don't know if this is some type of configuration or if it is a mistake, a haven't connected it yet so i don't know how it sounds or if it works, and im also going to modify it anyway but i was curious about this, I hope someone can explain me if there is any reason to connect it like that.
connections are like this:
L_in----> left negative differential
R_in----> right negative differential
G--------> left and right possitive differential
connections are like this:
L_in----> left negative differential
R_in----> right negative differential
G--------> left and right possitive differential
Maybe is was easier to create the PCB layout that way. I don't think it matters which input is referenced to ground. If it works, I wouldn't worry about it.
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