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USB Powered Dual Channel Mini Digital Amplifier Board

USB Powered Dual Channel Mini Digital Amplifier Board

Item ID: 14003600

Sale Price:US$2.91

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Product Details

Dual channel digital amplifier board, dual channel design. This amplifier board can be powered by USB, by one lithium battery or 1.2V batteries. Equipped with built-in high-gain buffer amplifier and short circuit protection on this amplifier board.

Description:

  • Built-in high-gain buffer amplifier, built-in short circuit protection
  • Powered by 1 x lithium battery or 4 x1.2V batteries or USB power
  • 5V voltage regulator circuit is required if powered by a transformer
  • Power: 3.6-5.5V DC
  • Output Power: 3W+3W (4ohms)
  • SNR: 90dB
  • Efficiency: >90%
  • Max. Closed Loop Gain: 24dB
  • Wire Length: Approx. 7.5 inch (short), 8 inch (long)

Precautions:

  • Do connect the polarity correctly, and supply voltage must be under 5.5V
  • Do not change any component parameters on board, or it will cause damage
  • Try to use shielded wire as the input line for better anti-interference performance
  • Cathode ends of left & right speaker can not be connected together

Package Includes:

  • 1x Amplifier Board