LM4952 - 3.1W Stereo-SE Audio Power Amplifier with DC Volume Control
Datasheet Packaging Samples & Pricing Application Notes Knowledge Base

Features
Pop & click circuitry eliminates noise during turn-on and turn-off transitions
Low current, active-low shutdown mode
Low quiescent current
Stereo 3.8W output, RL = 4
DC-controlled volume control
Short circuit protection

Key Specification


Quiscent Power Supply Current18mA (typ)
POUT  
VDD = 12V, RL = 4, 10% THD+N3.8W (typ)
Shutdown current55µA (typ)

General Description


The LM4952 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TV's. More...


Applications


Flat Panel Monitors
Flat panel TV's
Computer Sound Cards
  Typical Application
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ParametersValues
Power@ 4Ohms, 1% THD 3.1 Watt
Power@ 4Ohms, 10% THD 3.8 Watt
THD 0.08 %
PSRR 89 dB
Channels 2 Channels
Supply Range +9.6 - +16
THD Conditions 2Wrms, 1kHz, 12V, 4ohm
PSRR Conditions Vr 200mV, 1kHz, 12V, 4ohm
User Supply 12 Volt
Shut down Yes
Shutdown Type Low
Mono/Stereo Stereo
Temperature Min -40 deg C
Temperature Max 85 deg C


Typical Performance


click for larger image


  Additional Resources
Application Notes


Connection Diagram


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Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM4952 Boomer ® Audio Power Amplifier Series 3.1W Stereo-SE Audio Power Amplifier with DC Volume Control 717
Kbytes
25-Aug-04 Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.


Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders
Budgetary PricingStd
Pack
Size
Package
Marking
Format
TypePinsSpec.MSL
Rating
Peak
Reflow
RoHS
Report
CAD
Symbols
WeeksQtyQty$US each
LM4952TSTO-2639NOPB3245RoHS Download Full productionN/A
Samples
Buy Now
1K+$1.40rail
of
45
NSUZXYTTE#
LM4952TS
12 weeks1000
LM4952TSXTO-2639NOPB3245RoHS Download Full productionN/A
 
Buy Now
1K+$1.40reel
of
500
NSUZXYTTE#
LM4952TS
12 weeks7500

General Description


The LM4952 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TV's. It is capable of delivering 3.1 watts per channel to a 4 single-ended load with less than 1% THD+N when powered by a 12VDC power supply.

Eliminating external feedback resistors, an internal, DC-controlled, volume control allows easy and variable gain adjustment.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4952 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal size.

The LM4952 features a low-power consumption active-low shutdown mode. Additionally, the LM4952 features an internal thermal shutdown protection mechanism along with short circuit protection.

The LM4952 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

More Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1441: Application Note 1441 LM4962 Evaluation Board 840
Kbytes
20-Apr-06 Download
AN-1440: Application Note 1440 LM4962 Stereo Ceramic Speaker Driver Application Note 760
Kbytes
20-Apr-06 Download
AN-1440 (Chinese): Application Note 1440 LM4962 Stereo Ceramic Speaker Driver Application Note
548 Kbytes  

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 8-Nov-2009]