I have to design bluetooth speaker circuit for mass production, which should be as cheaper as we can. As we know there are three circuits Audio amplifier, bluetooth module, and battery charger module which we have to interface and design in a single PCB. Now the main problem i facing is interfacing and cheaper bluetooth module selection.

The below image shows the PCB of bluetooth speaker. But the indicated IC is not identified, because it is a costume IC. Can you please help me out to identify the IC or can we use different IC instead of this.



Regards, Amar

 

You already have an active thread on this topic.
https://forum.allaboutcircuits.com/threads/bluetooth-speaker-circuit-design.151668/