NS4159 Description:
    NS4159 is a class AB/D working mode can be switched, with anti-distortion function, ultra-low EMI, no filter, 5W high efficiency mono audio amplifier.
    Class AB/D operating mode can be switched between high and low levels through a control pin to match different application environments. Its unique anti-distortion function can effectively prevent input signal overload and output signal distortion caused by battery voltage drop, and can effectively protect the speaker from being damaged during high-power output. In practical applications, the amplifier can be set by the software one-line pulse to work in both anti-distortion mode and normal mode.
    Even in Class D operating mode, the NS4159 uses advanced technology to greatly reduce EMI interference over the full bandwidth range, minimizing the impact on other components. Its output without filter PWM modulation structure and built-in feedback resistance reduce external components, PCB area and system costs.
    The NS4159 is capable of operating at a voltage of 5V to 2? The load offers up to 5.5W of output power. The NS4159 built-in overcurrent protection, overheat protection and undervoltage protection functions effectively protect the chip from being damaged under abnormal working conditions. And the use of spread spectrum technology to fully optimize the new circuit design, more than 85% efficiency is more suitable for low voltage, high power output audio system.
    The NS4159 is available in an eSOP8 package with a rated operating temperature range of -40 ° C to 85 ° C.

AB/D class working mode switching, level setting
Anti-distortion function, one pulse setting
Output power: 3.2W(4? Load), 5.5W(2? Load)
Operating voltage range: 3V ~ 5.5V
0.2%THD (1 W output power, 5V power supply, 4? Load)
Excellent "power on, power off" noise suppression
Up to 85% efficiency
Overcurrent protection, overheat protection, undervoltage protection
The NS4159 is available in an eSOP8 package

Bluetooth speaker
loudspeaker
Other portable speakers