Amplificator Bluetooth 4.2 TPA3110 30w+30W PBTL Digital Stereo 12V-24V

Supply voltage: 8-25VDC

Power supply current: 2A is recommended, or above

Output power: 30W X 2 (@16V)

Dimensions (length, width and height): 53mm X 45mm X 21mm

Interface Description:

Note: When external audio input is required, the two pads of "external audio switch" need to be short-circuited.

The board adopts the typical PBTL circuit of TPA3110, and adopts a single power supply with anti-reverse connection. It is very convenient to use a general adapter and switching power supply to power it. Most of the resistor components adopt a standardized SMD process, which is simple and stable. A special interface is designed for the Bluetooth-compatible audio receiving module, with a built-in 5V voltage regulator circuit, which can easily DIY Bluetooth-compatible speakers. The output power is 30W X 2 (@16V), the board can be connected to speakers of 8 ohms and 4 ohms.

Power supply description:

When using a general adapter and switching power supply, it can be directly connected to the positive and negative poles of the power supply. If a linear transformer is used for power supply, the recommended AC voltage is 9-12V (the maximum is AC 15V), and the linear transformer with power of 30-50W needs to add a rectifier filter board (this shop has a matching set for sale), the display is as follows: