Support bluetooth 4.2; Supply by DC 3.7~5V; Support automatically back to even; With stereo 3W to 5W Class D Audio amplifier module on board, Max Output Power 5W+5W; Driving two 4Ω/3W speakers.
Characteristics
Power Supply | 3.7~5V DC |
SNR | 90dB |
THD+N | -70dB |
Crosstalk | -86dB |
DNR | 91dB |
Support Profile | A2DP/AVCTP/AVDTP/AVRCP/HFP |
LOS | >15m |
Interfaces specification
5V USB Power Supply | Micro USB 5V power supply port |
3.7-5V Power Supply | These pads are used for modification by external power |
LED indicator | The LED always bright in Bluetooth mode |
3.5mm audio interface | Standard 3.5mm interface,output stereo audio signal,connect to earphone or power amplifier |
Left channel 5W output | The left channel of audio output, driving 4 Ω 3W speaker |
Right channel 5W output | The right channel of audio output, driving 4 Ω 3W speaker |
Operation specification
Supply the module, the blue LED is on, and it goes into bluetooth mode;Waiting for pairing after play the audio tone; Turn on phone bluetooth, "XY-BT" will be searched and display; Click the"XY-BT",it will connect to decoding board. It connects successfully with a audio tone; After this you can play the music. The decoding board will prepare for the next pairing with a audio tone, When the Bluetooth is disconnected.
NOTES
1,3.7V to 5V operation from a single supply ,and damaged upper 5.5V.
2,A 5V/1A DC adapter is recommended to supply the module.
3,4 Ω 3W Speaker is recommended. The module will be damaged by overheating, if a 2Ω speaker is connected.
4,ESD protecting; Before operating the board, please discharge ESD on your body to avoid the ESD damage.
5,Note that there should be no barrier between phone and decoding board, or playing music will not be smooth.
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