Part # LM4810 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM4810 Boomer ® Audio Power Amplifier Series Dual 105mW Headphone Amplifier with Active-High Shutdown Mode

Part Details:

LM4810 November 2002 Dual LM4810Dual 105mW Headphone Amplifier with Active-High 105mW Shutdown ModeGeneral Description n THD+N at 1kHz, 70mW continuous average power into 32 0.1% (typ) The LM4810 is a dual audio power amplifier capable of n Shutdown Current 0.4µA (typ) Headphone delivering 105mW per channel of continuous average powerinto a 16 load with 0.1% (THD+N) from a 5V power supply. Features Boomer audio power amplifiers were designed specifically toprovide high quality output power with a minimal amount of n Active-high shutdown mode external components. Since the LM4810 does not require n LLP, MSOP, and SO surface mount packaging bootstrap capacitors or snubber networks, it is optimally n "Click and Pop" suppression circuitry suited for low-power portable systems. n Low shutdown current The unity-gain stable LM4810 can be configured by external n No bootstrap capacitors required Amplifier gain-setting resistors. n Unity-gain stable The LM4810 features an externally controlled, active-high,micropower consumption shutdown mode, as well as an Applications internal thermal shutdown protection mechanism. n Cellular Phones n Personal Computers Key Specifications n Microphone Preamplifier with n THD+N at 1kHz, 105mW continuous average power into n PDA s 16 0.1% (typ) Active-High Typical Application Shutdown Mode 20008901 *Refer to the Application Information Section for information concerning proper selection of the input and output coupling capacitors. FIGURE 1. Typical Audio Amplifier Application Circuit Boomer® is a registered trademark of National Semiconductor Corporation. © 2002 National Semiconductor Corporation DS200089 Connection Diagrams LM4810 MSOP Package

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LM4810.pdf Datasheet