NS8002 DC 3V Mini Mono Amplifier Class AB Amplifier Circuit

Parameter introduction:

• PCB size: length 16 × width 10.5 × thickness 2.6mm (including protruding part)
• Installation method: inline, SMT patch
• Output power: mono 3W
• Supply voltage: 2V-5V (3.7V lithium battery can be used)
• Output impedance: 4 ohms - 8 ohms
• Frequency response: 150HZ-20KHZ
• Efficiency: 90%
• Silent control: yes
• Volume adjustment: none
• Wiring instructions
• This board should be grounded, and the 3 pin is the negative pole of the power supply and the ground. 1 pin is a silent output, it should be connected with 3 feet, when the voltage is 0

Features

• Improved PSRR at 217 Hz & 1 KHz 60 dB
• Power output at 5.0V, 10% THD+N, 4 Ohm 2.0 W (typ.)
• Power output at 5.0V, 1% THD+N, 8Ohm 1.5 W (typ.)
• 2.2V – 5.5V operation
• Improved circuitry eliminates pop-click noise during turn-on and turn-off transitions
• No output coupling capacitors, snubber networks or bootstrap capacitors required
• Unity-gain stable
• External gain configuration capability

Applications

1.  Portable computers
2. Desktop computers
3. Low voltage audio systems