XY-BT5W Bluetooth Decoding Board MP3 Lossless Car Speaker Power Amplifier Refitting Bluetooth 4.2Item NO.: XY-BT 5W

XY-BT5W Bluetooth Decoding Board

Parameter Properties:

●Power Supply：3.7-5V

●SNR：90dB

●THD+N：-70dB

●Crosstalk：-86dB

●DNR：91dB

●Support Profile：A2DP/AVCTP/AVDTP/AVRCP/HFP

●LOS：>15m

Detailed Interface Description:

● 5V USB power supply: universal Micro USB 5V power supply

● 3.7-5V power supply pad: realize the modification of external 3.7-5V lithium battery power supply

● LED indicator: blue light of Bluetooth mode is always on

● 3.5mm audio interface: standard 3.5mm interface, output stereo sound source, can be inserted into headphones, and connect power amplifier and other equipment

● Left channel 5W output: decoding board left channel 5W power amplifier output, connected to 3W (5W) speaker

● Right channel 5W output: decoding board right channel 5W power amplifier output, connected to 3W (5W) speaker

Operating Instructions:

After the power is turned on, the blue indicator lights up for a long time, and the Bluetooth mode is entered; After broadcasting the "prompt tone", enter the pairing mode and wait for pairing; Mobile phone Bluetooth searches for "XY-BT" (decoding board device name), click "XY-BT" to connect, and play "prompt tone" after successful connection to play mobile phone music; After the Bluetooth connection is disconnected, the decoding board prepares for the next pairing, plays the "prompt tone" and enters the pairing mode to wait for pairing.

Matters Needing Attention:

1. The decoding board is powered by 3.7-5V, and the chip is burnt when it is higher than 5.5V. The positive and negative electrodes of the power supply must not be connected reversely, which will burn the chip.

2. It is recommended to supply 5V 1A DC power; If the power supply is insufficient, the horn will make a small sound. When the power supply is seriously insufficient, the horn will make a "tick" sound, or even no sound.

3. It is recommended to connect two 4-ohm 3W (5W) horns; If a 2-ohm horn is connected, the power amplifier chip will heat up, causing the chip to burn.

4. Electrostatic protection. It is easy to generate static electricity in dry weather. Users should release the static electricity on their hands with conductors before operating the decoding board to prevent the decoding chip from being damaged by static electricity.

5. The mobile phone and the Bluetooth decoding board shall not be blocked by walls and other obstacles during use, and shall be as far away from metal shielding as possible; Blocking will reduce the transmission distance. In serious cases, music will be stuck and intermittent; The angle between the decoding board and the mobile phone can be adjusted appropriately to adjust the optimal state of the connection signal