TDA7297 Bluetooth Digital Amplifier Board Bluetooth 5.0 Amplifier Board DIY

TDA7297 Bluetooth Digital Amplifier Board Bluetooth 5.0 Amplifier Board DIY

Function type: Audio amplification

Chip type: Class A and B

Chip model: TDA7297

Bluetooth version: 5.0

Supply voltage: DC12V – 18V

Number of channels: Stereo * 2

Output power: 15W * 2

Output impedance: 4-8Ω

Working temperature: 0-70 ℃

Size: 70x65x18mm

Weight: 65g

Prompt:

What's wrong with Bluetooth?

Answer: when the Bluetooth indicator is working normally, it flashes regularly. If it is on or off for a long time, there may be a problem with the Bluetooth module. You can contact us to deal with it.

The mobile phone can be connected but the laptop or desktop computer can't be connected?

Answer: if the mobile phone can connect and play music, it means that there is no problem with the Bluetooth power amplifier board.
Maybe there is a problem with the Bluetooth driver of the computer. The version is too old or the file is lost. It is recommended to uninstall it first and then install the latest driver from the new version.

When the volume is turned up, the sound will jam, intermittently. When the volume is turned down, it can be played for a long time?

Answer: reason 1: because the power supply is too small, the total output power of this power amplifier board is 200W. When selecting the power supply, the recommended voltage is 12V and the current is above 18a.

Reason 2: if there is no problem with the power supply, it may be that the power of the speaker is too small. For example, if the output is 200W, but a 5W speaker is connected.
If the volume is turned up, there will be a jamming phenomenon, and the speaker may be burned.

4.Noise is too loud when playing music, or there is noise floor when not playing music?

Answer: The function of the power amplifier board is to amplify the signal. The main source of noise is the radio clutter in the environment generated by the power amplifier board.
So as long as it is the power amplifier board, there will be noise. It is possible that the sound source is noisy, normal mobile phones and MP3s will not. Most of them are on some old front-end boards, which are not compatible with our amplifier board.
You can add audio isolators or coupling capacitors to test. Can't be removed.

Package:

1* TDA7297 Bluetooth Digital Amplifier Board Bluetooth 5.0 Amplifier Board DIY