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(A1A4) PAM8403 Super mini digital amplifier board
Specifications:
- Power: DC：3.6v－5.5V
- Output power: 3W +3 W (4 in Europe)
- Signal-to-noise ratio: 90dB
- Efficiency:> 90%
- Size: 24 * 15.5 * mm
- Positioning holes size: Spacing 20mm
- Aperture: 2mm
Note:
- Power positive and negative can not be reversed, the power supply voltage must not exceed 5.5V, violating one of these rules could result in damage to the IC.
- On-chip high-gain buffer, there can be no changes to any elements parameters.
- Input lines: Please try to use shielded lines to avoid noise
- Output CMOS tube BTL driver: the negative electrode of the left and right speakers can not be connected together, you need to connect each speaker with 2 different wires.
Advantages:
- Special internal output processing circuit, eliminating the conventional LC network, than the LC lower EMI value
- Use at a lower voltage to obtain the maximum power output, the super-power
- Built-in standby electronic switch
- Built-in high-gain buffer amplifier
- Built-in short circuit protection
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