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ChipSourceTek
NS4890B 1.5W Class AB Audio Power Amplifier
1 NS4890B Features
Supply Voltage from 2.2V to 5.25V 1.6W Output at 1% THD with a 4Ω Load and 5V supply 0.1uA(Typical) low current shutdown Mode current Improved POP&Click Suppression No output coupling capacitors Unity-Gain stable Available MSOP-8 Package
2 NS4890B Application
Mobile Phones PDA, MP4,PMP Desktops Audio System
4 NS4890B Typical Application Circuit
3 NS4890B Description
The NS4890 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1.6 watts of continuous average power to a 4Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply.