Bluetooth MP3 decoding module audio receiver board Lossless car speaker amplifier modified Bluetooth 4.1 circuit board

Description:

Support bluetooth 4.1 mode, support auto return to even, support to decode WAV / APE / FLAC / MP3 files losslessly, support for stereo output, with 3W power amplifier on board, support for USB audio function, support for download TF cards, support U disk TF card playing, supprot IR remote control function.

Parameters features:

Power supply: DC 3.7-5V

SNR: 90dB

THD + N: -70dB

Crosstalk: -86dB

DNR: 91dB

Support profile: A2DP / AVCTP / AVDTP / AVRCP / HFP

LOS> 15m

Operational specification:

Mode control:

Bluetooth mode is standard, enabled when no U disk or TF card is installed on board; And music mode is defult, enabled when U disk or TF card is installed on board. Switching mode using an adkey or IR remote control.

Music mode:

Playback of the audio files stored on the U disk and TF card, when connected to U disk and TF card.

Bluetooth mode:

When switching modes and playing "The Bluetooth device is ready to pair," it enters Bluetooth mode and is ready to pair. The device named "XY_BT" The searched mobile phone is the decoder board device. By connecting the "XY_BT" device to the mobile phone, the decoding board plays "The Bluetooth device is successfully connected", the decoding board has successfully connected to the mobile phone, and you can play music through the bluetooth device. Shown in the image below.