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LM4835 Datasheet Preview

LM4835 Datasheet

Stereo 2W Audio Power Amplifier

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LM4835
www.ti.com
SNAS019F – MARCH 1999 – REVISED MAY 2013
LM4835
Stereo 2W Audio Power Amplifiers
with DC Volume Control and Selectable Gain
Check for Samples: LM4835
FEATURES
1
23 PC98 Compliant
• DC Volume Control Interface
• System Beep Detect
• Stereo Switchable Bridged/Single-Ended
Power Amplifiers
• Selectable Internal/External Gain and Bass
Boost Configurable
• “Click and Pop” Suppression Circuitry
• Thermal Shutdown Protection Circuitry
APPLICATIONS
• Portable and Desktop Computers
• Multimedia Monitors
• Portable Radios, PDAs, and Portable TVs
KEY SPECIFICATIONS
• PO at 1% THD+N into 3Ω (LM4835LQ,
LM4835MTE) 2.2 W (typ)
• PO at 1% THD+N into 4Ω (LM4835LQ,
LM4835MTE) 2.0 W (typ)
• PO at 1% THD+N into 8Ω (LM4835) 1.1 W (typ)
1.0 % (typ)
• Single-Ended Mode - THD+N at 85mW into 32Ω
• Shutdown Current 0.7 µA (typ)
DESCRIPTION
The LM4835 is a monolithic integrated circuit that
provides DC volume control, and stereo bridged
audio power amplifiers capable of producing 2W into
4with less than 1.0% THD or 2.2W into 3with
less than 1.0% THD (see Notes below).
Boomer™ audio integrated circuits were designed
specifically to provide high quality audio while
requiring a minimum amount of external components.
The LM4835 incorporates a DC volume control,
stereo bridged audio power amplifiers and a
selectable gain or bass boost, making it optimally
suited for multimedia monitors, portable radios,
desktop, and portable computer applications.
The LM4835 features an externally controlled, low-
power consumption shutdown mode, and both a
power amplifier and headphone mute for maximum
system flexibility and performance.
NOTE: When properly mounted to the circuit board,
the LM4835LQ and LM4835MTE will deliver 2W into
4. The LM4835MT will deliver 1.1W into 8. See
the Application Information section LM4835LQ and
for LM4835MTE usage information.
NOTE: An LM4835LQ and LM4835MTE that have
been properly mounted to the circuit board and
forced-air cooled will deliver 2.2W into 3.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Boomer is a trademark of Texas Instruments.
2
All other trademarks are the property of their respective owners.
3
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 © 1999–2013, Texas Instruments Incorporated




etcTI

LM4835 Datasheet Preview

LM4835 Datasheet

Stereo 2W Audio Power Amplifier

No Preview Available !

LM4835
SNAS019F – MARCH 1999 – REVISED MAY 2013
CONNECTION DIAGRAMS
www.ti.com
Figure 1. 28-Pin WQFN - Top View
See NJB0028A Package
BLOCK DIAGRAM
Figure 2. 28-Pin TSSOP - Top View
See PW Package
Figure 3. LM4835 Block Diagram
2
Submit Documentation Feedback
Product Folder Links: LM4835
Copyright © 1999–2013, Texas Instruments Incorporated



Part Number LM4835
Description Stereo 2W Audio Power Amplifier
Maker etcTI
Total Page 3 Pages
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LM4835 Datasheet PDF





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