![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYlpnkB_lTyecOzJ9MxlPYlvvfWItqGI0gqTVf5dODmY80BKoajhiLCCHtQLjl3OPi9MMfot4Am8Qp0bLWY8qyuYOQCQSnufG7E6ieodltyTim7oiFfLvYzK6jfLmAwxQ6eDZ4-v4_4SKTKudff5gJWDqMGsRf5tVTXXlg2VsFLYj85RmIf9680DEI/s1600/hqdefault.jpg)
Aim
In this post we will develop an amplifier which amplifies 3.5mm analog audio output, You can use the circuit as a speaker for PC.
Introduction
Required Electronic Components:
1. PAM8403 Class D 3W amplifier
2. 3.3V 5.5V FT232RL FTDI USB to TTL Serial Adapter Module
3. 5V 3A USB power supply
4. USB Cable, A-Male to Mini-B Cord USB cable
5. 3W Speaker
6. Jumper Wires
7. AUX Cable
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