characteristic
|
Power Supply |
3.7-5V |
|
SNR |
90dB |
|
THD+N |
-70dB |
|
Crosstalk |
-86dB |
|
DNR |
91dB |
|
Support Profile |
A2DP/AVCTP/AVDTP/AVRCP/HFP |
|
LOS |
>15m |
Detailed description
|
Power connector |
Universal Micro USB 5V power supply |
|
3.7-5VPower supply pad |
Realize external 3.7-5V power supply modification |
|
U disk interface |
Support playing MP3/WAV/APE/FLAC files in U disk, support FAT16/32 file format |
|
TFCard interface |
Support playing MP3/WAV/APE/FLAC files in TF card, support FAT16/32 file format |
|
LEDInstructions |
The blue light in bluetooth mode is on, and the blue light in music mode is flashing |
|
3.5mmStereo output |
Standard 3.5mm interface, output stereo sound source, can insert earphones, connect power amplifier and other equipment |
Button function definition
|
button |
Features |
|
MODE |
"Short press", TF card, U disk, Bluetooth mode switch |
|
P/P |
"Short press" to switch between play and pause |
|
NEXT/V+ |
"Short press "Next song," long press "Volume increase |
|
PREV/V- |
"Short press" the previous song, "long press" the volume to decrease |
|
RPT |
"Short press", single/loop switch |
Instructions
1. Mode control
When the decoder board is not plugged in with a USB flash drive or TF card, the default is Bluetooth mode when powered on; when the decoder board is plugged in with a USB flash drive or TF card, the default is in music mode when powered on; the mode is switched through the MODE button.
2. Music mode
Insert the U disk or TF card to play the stored audio files.
3. Bluetooth mode
Switch the mode to broadcast the English "The bluetooth device is ready to pair", indicating that you enter the Bluetooth mode and wait for pairing; the "XFW_BT" searched by the mobile phone's Bluetooth is the device name of the decoder board, click connect, the decoder board prompts "The bluetooth device is connected successfully ", it means that the decoder board is successfully connected to the mobile phone, and the music can be played.
Precautions
1. If U disk is playing, it is recommended to use USB 5V power supply (3.7V lithium battery is not recommended), because the early U disk does not support 3.7V voltage.
2. U disk or TF card, the decoder board only supports FAT16/FAT32 file system, not NTFS system.
