This is a Super mini digital amplifier board, ultra-thin, can be very convenient to place in the gap of small plastic boxes or other devices. It can obtain maximum power output at a lower voltage. It also has built-in standby electronic switch, high-gain buffer amplifier, short circuit protection, which make this module perfect for MP3/MP4/notebook.
- New efficient digital amplifier chip
- Special internal output processing circuit
- Eliminating the conventional LC network
- Using EMI
- Power supply: (DC) 3.6v-5.5V
- Output power: 3W +3 W (4 in Europe)
- Signal-to-noise ratio: 90dB
- Efficiency:> 90%
- 2 channels 3W amplifier with PAM8403.
- Output is CMOS BTL driver
- Cannot change any component parameters to protect IC
- The board can also powered by 5V USB power supply or 4 x 1.5V batteries
- Dimensions: 0.91 in x 0.63 in x 0.08 in (2.3 cm x 1.6 cm x 0.2 cm)
- Positioning Holes size: Spacing 20mm
- Aperture: 2mm
- Material: Circuit board
- Color: Red
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Note that power positive and negative can not be reversed, the supply voltage can not exceed 5.5V, these two violations would have led IC damage.