NS4258 Description:
    The NS4258 is a fully differential input, ultra-low noise, anti-distortion, no filter required, 5W×2 dual channel Class AB Class D switching audio amplifier.
     NS4258 adopts full differential input design, which makes the power amplifier have better common mode noise suppression characteristics. The NS4258 uses advanced technology to greatly improve the signal-to-noise ratio and minimize bottom noise over the full bandwidth range. The unique anti-distortion (NCN) function can effectively prevent output signal distortion caused by input signal overload, and achieve a more comfortable hearing experience. At the same time, it can effectively protect the speaker from being damaged when the high power output.
     Class AB/D operating mode can be switched between high and low levels through a control pin to match different application environments. Its output filter-free PWM modulation structure and built-in feedback resistance reduce external components, PCB area and system costs.
    NS4258 at 5V operating voltage, each channel can be directed to 2? The load provides 5W output power. NS4258 built-in overcurrent protection, overheat protection and undervoltage protection functions, effectively protect the chip from being damaged under abnormal working conditions. And the spread spectrum technology is used to fully optimize the new circuit design, and the efficiency of up to 85% in Class D mode is more suitable for low voltage, high power output audio system.
     The NS4258 is available in eTSSOP-20 and SOP-16 packages and is rated for operating temperature ranges from -40 ° C to 85 ° C.

Output power: 3.2W×2(4Ω load), 5.2W ×2(2Ω load)
Ultra low noise: 90uV
Operating voltage range: 2.8V ~ 5.5V
0.05%THD (2W output power, 5V power supply, 2Ω load, ClassD)
Class AB Class D switching function
Anti-distortion (NCN) function
Differential input system
Excellent "power on, power off" noise suppression
Up to 85% efficiency
Overcurrent protection, overheat protection, undervoltage protection
The NS4258 is available in both eTSSOP-20 and SOP-16 packages

Bluetooth speaker
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