In this episode we are going to build a bluetooth speaker amplifier based on the TDA7492P class D audio amplifier coupled with a Bluetooth 4 module. We are not actually going to build the amplifier module because we can get that from China, very affordable, it only costs around $12 shipped which is way less that it would cost us to buy the bluetooth module and the TDA7492P individually not to mention the cost of fabricating a PCB of this size.
So we are actually going to use this module and build the final product with a nice enclosure and a suitable external power supply
Here are some links for the parts used to build this project:
- Bluetooth Audio Amplifier With Enclosure TDA7492P
- Bluetooth Audio Amplifier PCB Module TDA7492P
- Switching Power Supply Brick 24V 3A
- Aluminium Enclosure 110x66x24
- DC Power Jack Panel Mount
- 3.5mm Stereo Jack Panel Mount
- 4 Way Speaker Terminal
- Mini Rocker Switch On/Off 3A
- 100x100x0.5mm Thermal Silicone Pad
- 20x20x15 Aluminium Heatsink
- Countersunk Screw 3x6mm
- Brass Standoffs Kit
- Self Adhesive Rubber Feet
Wiring diagram below:
