NS4890B Datasheet | ChipSourceTek

Chip S矽ou源rc特e T科ek技 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 - 0.1u A(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 munication 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. The NS4890 does not require output coupling capacitors, therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement. The NS4890 Features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by either logic high or low depending on mode selection. The NS4890 contains advanced pop & click circuitry which eliminates noise which would otherwise occur during turn-on and turn-off transitions. The NS4890 is unity-gain stable and can be configured by external gain-setting resistors. TEL: +86-0755-27595155 27595165 FAX: +86-0755-27594792 WEB:Http://.Chip Source Tek. E-mail: Sales@Chip Source Tek. Tony.Wang@Chip Source Tek. 5 NS4890B Pins Configuration MSOP-8 Pins Layout： Chip S矽ou源rc特e T科ek技 No. Pins Description The device enters in shutdown mode when a low level SD is applied on this...