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LM4808

National Semiconductor
Part Number LM4808
Manufacturer National Semiconductor
Description Dual 105mW Headphone Amplifier
Published Mar 22, 2005
Detailed Description LM4808 Dual 105 mW Headphone Amplifier February 2000 LM4808 Dual 105 mW Headphone Amplifier General Description The LM...
Datasheet PDF File LM4808 PDF File

LM4808
LM4808

Overview
LM4808 Dual 105 mW Headphone Amplifier February 2000 LM4808 Dual 105 mW Headphone Amplifier General Description The LM4808 is a dual audio power amplifier capable of delivering 105 mW per channel of continuous average power into a 16Ω 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 LM4808 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.
The unity-gain stable LM4808 can be configured by external gain-setting resistors.
Key Specifications n THD+N at 1 kHz at 105 mW continuous average output power into 16Ω n THD+N at 1 kHz at 70 mW continuous average output power into 32Ω n Output power at 0.
1% THD+N at 1 kHz into 32Ω 0.
1% (max) 0.
1% (typ) 70 mW (typ) Features n n n n n SOP and MSOP surface mount packaging Switch on/off click suppression Excellent power supply ripple rejection Unity-gain stable Minimum external components Applications n Headphone Amplifier n Personal Computers n Microphone Preamplifier Typical Application Connection Diagram SOP & MSOP Package DS101276-2 Top View Order Number LM4808M, LM4808MM See NS Package Number M08A, MUA08A DS101276-1 *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.
© 2000 National Semiconductor Corporation DS101276 www.
national.
com LM4808 Absolute Maximum Ratings (Note 3) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
Supply Voltage Storage Temperature Input Voltage Power Dissipation (Note 4) ESD Susceptibility (Note 5) ESD Susceptibility (Note 6) Junct...


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