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National Semiconductor Electronic Components Datasheet

LM4810LD Datasheet

Dual 105mW Headphone Amplifier with Active-High Shutdown Mode

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LM4810LD pdf
November 2002
LM4810
Dual 105mW Headphone Amplifier with Active-High
Shutdown Mode
General Description
The LM4810 is a dual audio power amplifier capable of
delivering 105mW per channel of continuous average power
into a 16load 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. Since the LM4810 does not require
bootstrap capacitors or snubber networks, it is optimally
suited for low-power portable systems.
The unity-gain stable LM4810 can be configured by external
gain-setting resistors.
The LM4810 features an externally controlled, active-high,
micropower consumption shutdown mode, as well as an
internal thermal shutdown protection mechanism.
Key Specifications
n THD+N at 1kHz, 105mW continuous average power into
160.1% (typ)
n THD+N at 1kHz, 70mW continuous average power into
320.1% (typ)
n Shutdown Current
0.4µA (typ)
Features
n Active-high shutdown mode
n LLP, MSOP, and SO surface mount packaging
n "Click and Pop" suppression circuitry
n Low shutdown current
n No bootstrap capacitors required
n Unity-gain stable
Applications
n Cellular Phones
n Personal Computers
n Microphone Preamplifier
n PDA’s
Typical Application
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
www.national.com


National Semiconductor Electronic Components Datasheet

LM4810LD Datasheet

Dual 105mW Headphone Amplifier with Active-High Shutdown Mode

No Preview Available !

LM4810LD pdf
Connection Diagrams
MSOP Package
20008902
Top View
Order NumberLM4810MM
See NS Package Number MUA08A
LLP Package
20008986
Top View
Order NumberLM4810LD
See NS Package Number LDA08B
SO Marking
20008992
SO Package
20008902
Top View
Order NumberLM4810MA
See NS Package Number M08A
MSOP Marking
20008991
LLP Marking
20008993
www.national.com
2


Part Number LM4810LD
Description Dual 105mW Headphone Amplifier with Active-High Shutdown Mode
Maker National Semiconductor
Total Page 18 Pages
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