Wireless Audio Speaker Amplifier Modification JDY-61 4.0 Bluetooth Audio Receiver Bluetooth mono audio module

Feature The Bluetooth audio module has a very high power requirement, otherwise it will affect the quality of the audio. The power supply must be added to the LC filter circuit, especially the switching power supply. Module size PCB size: 23*15*24MM (length, width and height) Pin spacing: 254MM 1, can not search for blue Generally caused by power supply interference, the power supply line must be added with LC filter circuit. 2, whether to support 37 power supply The module is powered by 5 volts by default. You can replace the upper diode of the D 61 module with a 0805 package OR resistor, or short-circuit the wire so that it can be powered by a lithium battery. 3, the Bluetooth signal is too weak Do not wire or copper under the Bluetooth module antenna, or there should be no metal shielding around the antenna. 4, the current sound is too loud Generally caused by power ground interference, it is recommended that the power amplifier wiring should not be too long, and the Bluetooth ground should be separated from the power ground.

Application

1 bluetooth mono headset 2 bluetooth mono amplifier 3 wireless earbuds 4 earphones bluetooth wireless