Mạch Khuếch Đại Âm Thanh Cho Micro

It can realize the audio signal amplification of the capacitive microphone (column microphone pickup). The board will amplify the audio signal input from the audio input port, or directly amplify the pickup signal of the onboard microphone. The output of the board can be directly It is connected to the audio input of the audio, or the audio input of the computer to realize voice chat or voice amplification. The board is equipped with a precision high-quality op amp core, which can adjust the amplification gain, the noise is very small, and the sound is clear and bright! This board should be powered by battery (two or more dry batteries or a single lithium battery 18650). Secondly, it uses linear power supply. If you need to use switching power supply, please add filter circuit to ensure circuit power supply ripple. Small, the larger the ripple, the louder the noise will be. Shipped for welding microphones. The 3P pins on the board are not soldered, but will be placed inside the package. Board parameters: 1, power: DC 2.6-10V 2. Input: The board is equipped with a capacitive microphone (sensitivity 58D) 3, output: 3.5 audio and 3P pin synchronization audio output port L and G (G is audio ground) 4, board size: length 45mm width 25mm 5, the board will be shipped with a power connector plug line (15 cm or so) Color: green Material: Alloy Package Contents: 1 * AC signal amplifier boardOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.