In this article I will make a special audio receiver bluetooth module for the TPA3116d2 2.1 Amplifier (then I will call TPA3116d2). I call it special because the design of this module is based on the PCB TPA3116d2. To see the design of this module, you can see the top module in the image above.

The TPA3116d2 produces pop noise when first turned on. So I added pop noise remover in bluetooth module which i will make in this article.

Overall, the module that I will make has two functions that are quite useful for TPA3116d2 users, namely:

1. Bluetooth audio receiver (stereo)
2. Pop noise remover

How it Work :

1. for bluetooth audio receiver, this is like a bluetooth audio receiver in general which functions to receive sound sources from bluetooth then the output will be connected to the amplifier input.
2. for pop noise remover, it works by muting the output of the amplifier when it is first turned on. after the amplifier turns on the pop noise remover will unmute the amplifier output

for the tutorial on making you can see it in the following video :

or to see more manufacturing documents you can see them in the following article:

https://www.instructables.com/DIY-Bluetooth-Audio-Receiver-Pop-Noise-Remover-for/