I am designing a board that requires a stereo audio amp.
The LM4836 seems like a nice solution, I took a whack at the design, but it's giving me trouble.
The outputs are not centered at Vcc/2 as they should be, I think my problem is that I did not close the loop correctly with the feedback resistors connected to the horribly named R_Dock and L_Dock pins? When I read the data sheet again, it talks about calculating the gain: Avd= 2 * (Rf/Ri) but the application schematic never calls out which resistor is which?
The data sheet is really not really clear about how the input gain is set, and how to bias the input MUX properly.
I think I need a resistor between the _DOCK pin and the MUX inputs to close the loop and bias the amp correctly?
The LM4836 seems like a nice solution, I took a whack at the design, but it's giving me trouble.
The outputs are not centered at Vcc/2 as they should be, I think my problem is that I did not close the loop correctly with the feedback resistors connected to the horribly named R_Dock and L_Dock pins? When I read the data sheet again, it talks about calculating the gain: Avd= 2 * (Rf/Ri) but the application schematic never calls out which resistor is which?
The data sheet is really not really clear about how the input gain is set, and how to bias the input MUX properly.
I think I need a resistor between the _DOCK pin and the MUX inputs to close the loop and bias the amp correctly?
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