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LM4908MA-LM4908MM
LM4908 10kV ESD Rated, Dual 120mW Headphone Amplifier
LM4908
10kV ESD Rated, Dual 120 mW Headphone Amplifier
General DescriptionThe LM4908isa dual audio power amplifier capableof
delivering 120mWper channelof continuous average power
intoa 16Ω load with 0.1% (THD+N) froma5V power supply.
Boomer audio power amplifiers were designed specificallyto
provide high quality output power witha minimal amountof
external components using surface mount packaging. Since
the LM4908 doesnot require bootstrap capacitorsor snub-
ber networks,itis optimally suitedfor low-power portable
systems.
The unity-gain stable LM4908 canbe configuredby external
gain-setting resistors.
Key Specifications THD+Nat 1kHzat 120mW
continuous average output power
into 16Ω 0.1% (typ) THD+Nat 1kHzat 75mW
continuous average output power
into 32Ω 0.1% (typ) Output powerat 0.1% THD+N 1kHz into 32Ω 75mW (typ)
Features Upto 10kV ESD protectiononall pins MSOP, SOP, and LLP surface mount packaging Switch on/off click suppression Excellent power supply ripple rejection Unity-gain stable Minimum external components
Applications Headphone Amplifier Personal Computers Portable electronic devices
Typical Application*Refertothe
Application Information Sectionfor information concerning proper selectionofthe inputand output coupling capacitors.
FIGURE1. Typical Audio Amplifier Application CircuitFebruary 2004
10kV
ESD
Rated,
Dual
Headphone
Amplifier
