Can someone tell me where I need to place a potentiometer to control the volume in this LM4910 amplifier circuit?
Does the shutdown pin need a pull up resistor to enable the IC?
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One way to do this would be to make R3 and R4 adjustable with a potentiometer. The other way would be to put a potentiometer on the output of the amplifier.
Be sure to use a dual potentiometer so both channels change the same resistance value, otherwise the channels will have different volume outputs (with two different potentiometer ) .
Read the datasheet for the LM4910 as this will tell you everything you need to know about the chip.
This amplifier is not really designed to use a physical volume control other than that provided by the equipment it plugs into. I imagine you would need an A-law stereo potentiometer on the input such as this if you are trying to make a very small physical implementation: