Mini Digital Amplifier Board Dual-Channel Power

Highlights

• • Built-in high-gain buffer amplifier, built-in short circuit protection
• • Powered by 1 x lithium battery or 4 x1.2V batteries, 3 x 1.5V 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. 18cm (short), 28cm (long)
• • Size - 29mm x 23mm
• • 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