LM4810_15 Datasheet, PDF (1/25 Pages) Texas Instruments – Dual 105mW Headphone Amplifier with Active-High Shutdown Mode

LM4810
www.ti.com
SNAS125D – FEBRUARY 2001 – REVISED APRIL 2013
LM4810
Dual 105mW Headphone Amplifier with Active-High Shutdown Mode
Check for Samples: LM4810
FEATURES
1
•2 Active-High Shutdown Mode
• WSON, VSSOP, and SOIC Surface Mount
Packaging
• "Click and Pop" Suppression Circuitry
• Low Shutdown Current
• No Bootstrap Capacitors Required
• Unity-Gain Stable
APPLICATIONS
• Cellular Phones
• Personal Computers
• Microphone Preamplifier
• PDA's
KEY SPECIFICATIONS
• THD+N at 1kHz, 105mW Continuous Average
Power into 16Ω 0.1 % (typ)
• THD+N at 1kHz, 70mW Continuous Average
Power into 32Ω 0.1 % (typ)
• Shutdown Current 0.4 µA (typ)
DESCRIPTION
The LM4810 is a dual audio power amplifier capable
of delivering 105mW 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. 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.
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2001–2013, Texas Instruments Incorporated