5pcs Super Small Power Amplifier Board 3W+3W Type D PAM8403 Digital Audio Amp Module 2.5V 5.5V Dual Channel High Efficiency 90% USB Powered
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1PAM8403 mini type: PAM8403 mini type D digital power amplifier can be easily put in small space of many digital products, high amplification efficiency. 2USB 5V : It can be powered by computer USB 5V, or phone charger 5V, or lithium battery. 3High efficiency 90%: High efficiency 90%, can provide 3W (left channel)+3W (right channel) when using 4Ω load and 5V power supply. 4Type D power amplifier: Type D power amplifier has very high amplification efficiency, sound quality will not be effected by temperature rise, no need of heat sink. 5Build-in noise: Build-in noise reduction circuit, no noise when power on/off, supports short circuit, over current and over temperature protection.
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1PAM8403 mini type: PAM8403 mini type D digital power amplifier can be easily put in small space of many digital products, high amplification efficiency. 2USB 5V : It can be powered by computer USB 5V, or phone charger 5V, or lithium battery. 3High efficiency 90%: High efficiency 90%, can provide 3W (left channel)+3W (right channel) when using 4Ω load and 5V power supply. 4Type D power amplifier: Type D power amplifier has very high amplification efficiency, sound quality will not be effected by temperature rise, no need of heat sink. 5Build-in noise: Build-in noise reduction circuit, no noise when power on/off, supports short circuit, over current and over temperature protection.
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