Description
A module with a universal two channel amplifier, powered by voltage of 5 V. It allows you to connect the speakers from 4 Ohms to 8 Ohms and 3 watts each. The module has soldered connectors and a potentiometer to adjust the volume.
Specification
- Power supply: from 2.5 V to 5.5 V
- Output power: 2x 3 W
- Impedance speaker output: 4 Ω to 8 Ω
- Efficiency: 90 %
- Operating temperature: -40 °C to 85 °C
- Frequency range: 20 Hz to 20 kHz
- Dimensions: 30 x 30 mm
Details intechnical documentation.
Connection
The module has the following outputs:
The outputs of the amplifier PAM8403.
| Pin | Description |
|---|---|
| GND | The ground of the system. |
| VCC | Supply voltage from 2.5 V to 5.5 V |
| MUTE | Volume pin activated by low state. |
| SHDN | Shutdown activated by the low state. |
| INL | The input of the left channel. |
| GND | The ground of the system. |
| INR | The input of the right channel. |
| R+, R- | The output of the right channel (screw connector). |
| L+, L- | The output of the left channel (screwconnector). |
Useful links |
