Audio Amplifier 3W PAM840

Item #: EL-ASAA840PA
There are no reviews yet Write a review
Price: $3.31 inc GST
    The product is in stock Availability: Discontinued

        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

    Download& External Link

        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.