ITEM NAME:PAM8403 super mini digital power amplifier board, small power amplifier boa U7S9 PAM8403 super mini digital power amplifier board, small power amplifier boa U7S9 PAM8403 Super mini digital power amplifier board Small power amplifier board High power 3W dual channel Power supply: DC 1A (DC): 5V Output power: 3W+3W (4 Euro) Signal to noise ratio: 90dB Efficiency: more than the 90% Size: 24 x 15.5 x mm location hole size: pitch 20mm, aperture: 2mm Matters needing attention: Power positive and negative can not be reversed, the power supply voltage can not exceed 5.5V, these two violations will cause IC damage. On-chip high gain buffer, can not change any component parameters on board, the parameters do not meet will lead to IC damage. Input line, please use the shielded line as far as possible, can play an anti-interference role, eliminate the noise of the current of the wave. The output is CMOS tube BTL drive mode, the negative electrode of the left and right speakers can not be connected together, that is, the 4 lines of the speaker are completely independent, and no joint connection is allowed! Material:Metal Colour:Red Quantity: 1 pcs Package Contents: 1 x super mini digital power amplifier board 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..PAM8403 Super mini digital power amplifier board. Small power amplifier board. High power 3W dual channel. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.
