PAM8403 Super mini digital power amplifier board miniature class D power amplifier board 2 * 3 W high 2.5-5V USB

 PAM8403 Super mini digital power amplifier board miniature class D power amplifier board

      PAM8403 Red Parameters: Power supply: direct current (DC) : 3.6V-5.5V Output power: 3W+ 3W (4 o) Signal to noise ratio: 90dB Efficiency: > 90% Size: 15.5 * 24mm positioning hole size: spacing of 20 mm diameter: 2 mm Note: 1: power supply is the cathode can't meet the, power supply voltage cannot be more than 5.5 V, the two violation will cause damage of the IC. 2: with high gain buffer, not any component parameter changes on a board, does not conform to the parameters will lead to damage of the IC. 3: please try to input line with shielding line, can play a role of anti-interference, eliminate noise currents. 4: the cmos tube BTL output, around the horn of the cathode can't meet together, namely pick horn line 4 is completely independent, are not allowed to pick up!