LM4938

Features: Improved click and pop circuitry virtually eliminates noise during turn on/off transitionsDC Volume Control InterfaceSystem Beep DetectStereo switchable bridged/single-ended power amplifiersSelectable internal/external gain and bass boostThermal shutdown protection circuitryUnity gain st...

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SeekIC No. : 004395909 Detail

LM4938: Features: Improved click and pop circuitry virtually eliminates noise during turn on/off transitionsDC Volume Control InterfaceSystem Beep DetectStereo switchable bridged/single-ended power amplifie...

floor Price/Ceiling Price

Part Number:
LM4938
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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268 Transactions

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Upload time: 2024/5/16

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Product Details

Description



Features:

Improved click and pop circuitry virtually eliminates noise during turn on/off transitions
DC Volume Control Interface
System Beep Detect
Stereo switchable bridged/single-ended power amplifiers
Selectable internal/external gain and bass boost
Thermal shutdown protection circuitry
Unity gain stable



Application

Flat Panel Displays
Portable and Desktop Computers
Multimedia Monitors
Portable Radios, PDAs, and Portable TVs



Pinout

  Connection Diagram


Specifications

Supply Voltage                                                                       6.0V
Storage Temperature                                         -65°C to +150°C
Input Voltage                                                 −0.3V to VDD +0.3V
Power Dissipation (Note 11)                              Internally limited
ESD Susceptibility (Note 12)                                                2000V
ESD Susceptibility (Note 13)                                                 200V
Junction Temperature                                                         150°C
Soldering Information Small Outline Package
    Vapor Phase (60 sec.)                                                    215°C
    Infrared (15 sec.)                                                            220°C



Description

The LM4938 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4Ω (Note 1) with less than 1.0% THD or 2.2W into 3Ω (Note 2) with less than 1.0% THD.

Boomer® audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4938 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 LM4938 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.




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