HALJIA 2PCS 2-Channel 3W PAM8403 Audio Amplifier Board DIY Electronic Components Control Module Red
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Electronics / Audio

HALJIA 2PCS 2-Channel 3W PAM8403 Audio Amplifier Board DIY Electronic Components Control Module Red

$3.99
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Premium 2-Channel 3W PAM8403 Audio Amplifier Board. CMOS BTL output controller. Output power: 3W + 3W (at 4ohm). The board can be powered by 5V USB power adapter or 4 x 1.5 V batteries. No component parameters are changed to protect IC. It is perfect for MP3/MP4/notebook. Product specifications:Voltage: DC 2.5~5.5VPower: DC 1A (DC): 5VOutput power: 3W + 3W (4 ohms) Signal to noise ratio: 90 dB Efficiency: >90%Color: Red Positioning hole size: Axis Spacing 20mm Positioning hole Aperture: 2mmBoard Size: 24.4 × 15.4 × 3 mmWeight: 1.3g Precautions:1: The positive and negative poles of the power supply cannot be reversed, and the power supply voltage cannot exceed 5.5V. These two violations will cause the IC to be damaged.2: There is a high gain buffer on the chip. It is not possible to change any component parameters on the board. Non-conforming parameters will cause IC damage.3: Please use the shielded wire as much as possible for the input line, which can play an anti-interference e

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