Part # LM4908 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM4908 Boomer ® Audio Power Amplifier Series 10kV ESD Rated, Dual 120 mW Headphone Amplifier


Part Details:

10kV February 2004 ESD LM4908 Rated, 10kV ESD Rated, Dual 120 mW Headphone AmplifierGeneral Description j Output power at 0.1% THD+N The LM4908 is a dual audio power amplifier capable of at 1kHz into 32 75mW (typ) Dual delivering 120mW 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 to 120 provide high quality output power with a minimal amount of n Up to 10kV ESD protection on all pins external components using surface mount packaging. Since n MSOP, SOP, and LLP surface mount packaging the LM4908 does not require bootstrap capacitors or snub- n Switch on/off click suppression mW ber networks, it is optimally suited for low-power portable n Excellent power supply ripple rejection systems. n Unity-gain stable The unity-gain stable LM4908 can be configured by external n Minimum external components Headphone gain-setting resistors. Applications Key Specifications n Headphone Amplifier j THD+N at 1kHz at 120mW n Personal Computers continuous average output power n Portable electronic devices into 16 0.1% (typ) j THD+N at 1kHz at 75mW Amplifier continuous average output power into 32 0.1% (typ) Typical Application 20075201 *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. © 2004 National Semiconductor Corporation DS200752 www.national.com Connection Diagrams LM4908


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LM4908.pdf Datasheet