A few more words on the chip. This is a bridge amplifier class AB integrated into the protection against overheating, short circuit protected outputs, suppression of inrush current when you turn on and off the amplifier. The only difference – a little more power output – 1.4 watts per channel. But nevertheless, it also does not require a heat sink and can be used anywhere.
On this chip there is a difference in the headphone sense pin pin number 4. This will detect when a headphone jack inserted into the connector. For more information see the datasheet here.
Parts list :
| Components | Value |
| C1 | 0.33 |
| C2 | 0.33 |
| C3 | 0.1 |
| C4 | 0.1 |
| C5 | 220uF/10V |
| C6 | 220uF/10V |
| C7 | 220uF/10V |
| C8 | 220uF/10V |
| C9 | 0.1 |
| R1 | 2.2 k |
| R2 | 2.2 k |
| R3 | 1K |
| R4 | 1K |
| DA1 | TDA8552 |
