TPA3118D2 High-power Adjustable Audio Power Amplifier Board
The power supply range of the motherboard is DC 12-24V, with 24V recommended. When powered by 12V, the output power is 25W per channel; when powered by 24V, it is 50W per channel. The product IC is equipped with over-current protection, over-heat protection, over-voltage protection, and short-circuit protection, so it can be used with confidence.
There are two options for audio input: 3.5mm audio jack and Bluetooth input. For Bluetooth input, turn on your phone’s Bluetooth to scan, and connect to the Bluetooth named “HW-BT” to use it.
Note: The output terminal OUTR is for the right channel, and OUTL is for the left channel. In addition, during use, the volume can be adjusted via the volume control knob: turn clockwise to increase the volume, and counterclockwise to decrease the volume or turn off the amplifier board.
Specification of this amplifier board:
- Chip Model: TPA3118D2
- Power Supply Voltage: DC 12-24V (24V recommended)
- Power Supply Interface: DC Socket
- Input Current: 3A
- Output Power: 50W×2 at 24V input voltage; 25W×2 at 12V input voltage
- Output Impedance: 4-8Ω
- Input Mode: Bluetooth 5.0 or AUX
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