[Nsiway]

functional description
NS4205 is a no filter, D class two-channel audio amplifier. NS4205 uses advanced technology, great in the full bandwidth range To reduce EMI interference, to minimize the impact on other components. NS4205 eliminates the need for filter PWM modulation structure and feedback Resistive built-in way reduces external components, PCB area and system cost. NS4205 built-in overcurrent protection, overheat protection and undervoltage protection, Effectively protect the chip in the abnormal working conditions are not damaged. And the use of spread spectrum technology to fully optimize the new circuit design, up to 90% of the effect Rate is more suitable for portable audio products.
The NS4205 is available in an SOP16 package and is specified over the -40 ° C to 85 ° C operating temperature range.

KEY FEATUREs
● 3W output power (Vdd = 5.0V, RL = 4Ω)
● 0.2% THD (0.5W output power, 5V power supply)
● excellent full bandwidth EMI suppression
● 90% efficiency
● High PSRR: -80dB (217Hz)
● Operating voltage range: 3.0V ~ 5.25V Overcurrent protection, overheat protection, undervoltage protection
● SOP16 package

APPLICATION areas
● Low voltage sound system