LM4839

Features: DC Volume Control Interface Input mux System Beep DetectStereo switchable bridged/single-ended power amplifiers Selectable internal/external gain and bass boost Click and pop suppression circuitryThermal shutdown protection circuitryApplication Portable and Desktop ComputersMultimedia ...

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SeekIC No. : 004395793 Detail

LM4839: Features: DC Volume Control Interface Input mux System Beep DetectStereo switchable bridged/single-ended power amplifiers Selectable internal/external gain and bass boost Click and pop suppression...

floor Price/Ceiling Price

Part Number:
LM4839
Supply Ability:
5000

Price Break

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

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Upload time: 2024/11/21

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Product Details

Description



Features:

DC Volume Control Interface
Input mux
System Beep Detect
Stereo switchable bridged/single-ended power amplifiers
Selectable internal/external gain and bass boost
"Click and pop" suppression circuitry
Thermal shutdown protection circuitry





Application

Portable and Desktop Computers
Multimedia Monitors
Portable Radios, PDAs, and Portable TVs





Pinout

  Connection Diagram




Specifications

Power@ 4Ohms, 1% THD 2 Watt
Power@ 8Ohms, 1% THD 1.1 Watt
Power@ 8Ohms, 10% THD 1.5 Watt
THD 0.3 %
PSRR 74 dB
SNR 93 dB
Channels 2 Channels
Supply Range +2.7 - +5.5 V
THD Conditions Po=1W @Vs=5V, 20Hz-20kHz
PSRR Conditions 120 Hz RL=8 Ohms
SNR Conditions Pout=1.1W
User Supply 5 Volt
Shutdown Type High
Temperature Min -40 deg C
Temperature Max 85 deg C
View Using Catalog


Supply Voltage .................................................6.0V
Storage Temperature................ -65°C to +150°C
Input Voltage........................... −0.3V to VDD +0.3V
Power Dissipation .........................Internally limited
ESD Susceptibility (Note 12) ..........................2500V
ESD Susceptibility (Note 13) ............................250V
Junction Temperature.................................. 150°C
Soldering Information
Vapor Phase (60 sec.) ..................................215°C
Infrared (15 sec.) .........................................220°C
See AN-450 "Surface Mounting and their Effects on
Product Reliability" for other methods of soldering
surface mount devices.
qJC (typ)-LQA028AA .....................................3°C/W
qJA (typ)-LQA028AA................................... 42°C/W
qJC (typ)-MTC28........................................ 20°C/W
qJA (typ)-MTC28 ........................................80°C/W
qJC (typ)-MXA28A ........................................2°C/W
qJA (typ)-MXA28A (exposed
DAP) (Note 4) ..............................................41°C/W
qJA (typ)-MXA28A (exposed
DAP) (Note 3) ..............................................54°C/W
qJA (typ)-MXA28A (exposed
DAP) (Note 5)............................................... 59°C/W
qJA (typ)-MXA28A (exposed
DAP) (Note 6) ...............................................93°C/W





Description

The LM4839 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4W (Note 1) with less than 1.0% THD+N, or 2.2W into 3W (Note 2) with less than 1.0% THD+N.

Boomer® audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4839 incorporates a DC volume control, stereo bridged audio power amplifiers, selectable gain or bass boost, and an input mux making it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications.

The LM4839 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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