NS4205 Description:
    The NS4205 is a Class D 3W*2 dual-channel audio amplifier without filters.
    The NS4205 uses advanced technology to greatly reduce EMI interference over the full bandwidth range, minimizing the impact on other components. The NS4205's filter-free PWM modulation structure and built-in feedback resistance reduce external components, PCB area, and system costs.
    NS4205 built-in overcurrent protection, overheat protection and undervoltage protection functions, effectively protect the chip from being damaged under abnormal working conditions. The new circuit design is fully optimized using spread spectrum technology, and the efficiency of up to 90% is more suitable for portable audio products.
    The NS4205 is available in a SOP16 package with a rated operating temperature range of -40 ° C to 85 ° C.

3W output power (Vdd=5.0V,RL=4Ω)
0.2%THD (0.5W output power, 5V power supply)
Excellent full bandwidth EMI rejection
90% efficiency
High PSRR: -80dB (217Hz)
Operating voltage range: 3.0V ~ 5.25V
Overcurrent protection, overheat protection, undervoltage protection
The NS4205 is available in a SOP16 package

Low voltage sound system