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LM4908MM Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza LM4908MM
Descripción Electrónicos  10kV ESD Rated, Dual 120 mW Headphone Amplifier
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4908MM Datasheet(HTML) 1 Page - National Semiconductor (TI)

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LM4908
10kV ESD Rated, Dual 120 mW Headphone Amplifier
General Description
The LM4908 is a dual audio power amplifier capable of
delivering 120mW per channel of continuous average power
into a 16
Ω load with 0.1% (THD+N) from a 5V power supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components using surface mount packaging. Since
the LM4908 does not require bootstrap capacitors or snub-
ber networks, it is optimally suited for low-power portable
systems.
The unity-gain stable LM4908 can be configured by external
gain-setting resistors.
Key Specifications
j THD+N at 1kHz at 120mW
continuous average output power
into 16
0.1% (typ)
j THD+N at 1kHz at 75mW
continuous average output power
into 32
0.1% (typ)
j Output power at 0.1% THD+N
at 1kHz into 32
75mW (typ)
Features
n
Up to 10kV ESD protection on all pins
n
MSOP, SOP, and LLP surface mount packaging
n
Switch on/off click suppression
n
Excellent power supply ripple rejection
n
Unity-gain stable
n
Minimum external components
Applications
n
Headphone Amplifier
n
Personal Computers
n
Portable electronic devices
Typical Application
Boomer® is a registered trademark of National Semiconductor Corporation.
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
February 2004
© 2004 National Semiconductor Corporation
DS200752
www.national.com


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