3W+3W Stereo Ses amplifikatörü + USB Lityum Pil Şarj Modülü

Ürün Açıklaması

AÇIKLAMALAR It is a Digital Amplifier 3W+3W Dual-Channel Audio Amplifier Board, Input Voltage: DC 3.6v~5.5V(Support 5V USB Power Supply) Suitable for for MP3/4/Mobile Phone/laptop external speakers etcÖZELLİKLER>Efficient digital amplifier chip, Built-in standby electronic switch, built-in high-gain buffer amplifier, built-in short circuit protection.> Input Voltage:DC 3.6v~5.5V (the chip will burn out if more than 5.5V.)> Output power:3W +3 W (4 ohms)> Signal to Noise Ratio: 90dB> Efficiency:> 90%> Maximum closed-loop gain:24DBNOTES> positive and negative power supply can not be reversed, the supply voltage can not exceed 5.5V, or it would burn out the IC.> On-chip high-gain buffer, can not change any component. Improper parameters would lead to IC damage.> Please try to use the input line with shield wire, to removing clutter and current sound.> CMOS BTL Driver Output, Left and right negative of speakers can not be connected together, 4 speaker wire is completely independent, Not allow connect together.> if use with computer, powered by the computer USB, that would caused current sound. because the audio and USB common ground, so the current sound is unavoidable