NS4358 Datasheet – Sound Digital Audio Amplifier – NSIWAY

Part Number: NS4358

Function: Ultra-low EMI, no filter, 5W + 3W × 2 2.1 channel + 3D surround sound digital audio amplifier

Package: TQFN4×4-28,  SOP-28 Pin Type

Manufacturer: Nsiway


NS4358 audio amplifier


NS4358 is an ultra-low EMI, no filter, 5W +3 W × 2 high-efficiency 2.1-channel + 3D surround sound of Class D audio Power amplifier. The NS4358 utilizes state-of-the-art technology to significantly reduce EMI interference in the full bandwidth range, minimizing interference with other components influences. The output of the filter without PWM modulation structure and feedback resistor built-in way to reduce the external components, the 2.1-channel function, 3D ring Around the stereo function and band-pass filter integrated in a single chip, with minimal external components, the largest savings in PCB area and system cost.

NS4358 built-in over-current protection, over-temperature protection and under-voltage protection, effectively protect the chip in the abnormal working conditions are not damaged. and And the use of spread spectrum technology to fully optimize the new circuit design, more than 90% efficiency is more suitable for low voltage, high power output audio system.



NS4358 datasheet pinout

1. Output power (5V power supply): 5W (2Ω load) + 3W × 2 (4Ω load)
2. Operating voltage range: 3.0V ~ 5.25V
3. 0.1% THD + N (1.5W output power, 2Ω load, 5V power supply)
4. Excellent full bandwidth EMI suppression
5. Excellent “power-down, power-down” noise suppression
6. Up to 90% efficiency
7. High PSRR: -80dB (217Hz)
8. Over-current protection, over-temperature protection, under-voltage protection


NS4358 Datasheet


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