High sound quality Class D PAM8406 power amplifier board / 6W is better than PAM8403 3-5V supply Электронные компоненты и - купить

Купить High sound quality Class D PAM8406 power amplifier board / 6W is better than PAM8403 3-5V supply | Электронные компоненты и

 

This power amplifier board can drive two 10W speakers. Spike uses the power amplifier board of TDA7266 chip. TDA7266 (6W + 6W) traditional power amplifier board needs to use a huge heat sink to drive two 10W speakers, while high-efficiency pure class D amplifier board drives two 10W speakers still With a heat sink, the sound quality is great.   Improved: 1. Using the original PAM8406 chip as the power amplifier chip, the power can reach 6W + 6W. And other products generally use PAM8403, PAM8403 has been widely copied, and the original chip can not be compared.   2. Due to the high power requirements of the pure Class D power amplifier board, this power amplifier board uses 1000UF capacitors for filtering to completely eliminate AC sound without interference and pure sound quality.   3. With the power supply reverse protection function, the input power polarity is reversed and the IC is not burned.   Overview: When the power supply voltage is 5V, the PAM8406 can provide 6W + 6W output power to 4Ω load with high-quality sound quality.   Technical Parameters: Power: 6W typical Voltage: DC3V-5V, can be powered by lithium battery. Built-in power-on impact sound elimination circuit, no power-on impact sound   The board is small and compact, with a standard 3.5MM stereo audio input interface, and the audio source input is very convenient. With fully enclosed volume adjustment potentiometer, you can adjust the volume as you want, it is very flexible and convenient to use and install   Board size: 42mm * 34mm * 13mm (excluding protruding parts such as volume potentiometer)   advantage: 1. Use high-efficiency pure class D PAM8406 power amplifier chip with beautiful sound quality, far better than the power amplifier board using TDA2822, 8002, SP2038, LM4871 chip. 2. Better than the power amplifier board using PAM8403 (3W + 3W) chip. 3. Use the sound volume adjustment potentiometer, it will not produce “click” sound for a long time. 4. Sound quality reaches HI-FI level standard.   Precautions: : 1: The power supply voltage cannot exceed 5.5V 2: The output is a BTL drive mode of the CMOS tube. The negative poles of the left and right speakers cannot be connected together, that is, the four wires connected to the speakers are completely independent. 3: As soon as one of the situations occurs, burn the IC immediately   Subjective sound quality experience:       It's really surprising to hear the sound from PAM8406. It's hard to believe how much volume can be produced by such a small chip. The power amplifier board still has no effort to drive two 10W + 10W speakers. The stereo effect is very good, indicating that the chip channel separation is very high. The performance of playing music is better than expected. The chip emits very little heat, the sound is very charming, the treble is more transparent, and the bass is still a certain amount. The sound quality is considered to be medium to high in a small power amplifier board.