I am developing a digital FM radio alarm clock and I want to use it without any button but with a remote IR control.
I was wondering which could be the best way to implement the volume control without having a physical potentiometer to move.
I use the output of a TEA5767 FM radio chip into an LM386 module audio amplifier and the amplified audio signal is connected into a 4 Ohm 3W speaker.
I saw that there are some serial digital potentiometers: can this be a good idea for my puropose? My main concern is about to find a digital potentiometer that can handle the voltage of the signal I need to manage.
What do you think about that? I believe this is just only one option to manage my goal, do you have any better idea?