LM4834 - Boomer 1.75W Audio Power Amplifier with DC Volume Control and Microphone Preamp [Life-time buy]
Datasheet Packaging Samples & Pricing Reliability Knowledge Base

Features
•PC98 Compliant
•"Click and Pop" suppression circuitry
•Stereo line level outputs with mono input capability for system beeps
•Microphone preamp with buffered power supply
•DC Volume Control Interface
•Thermal shutdown protection circuitry

Key Specification

THD at 1.1W continuous average output power into 8 at 1kHz

0.5% (max)

Output Power into 4 at 1.0% THD+N

1.75W (typ)

THD at 70mW continuous average output power into 32 at 1kHz

0.1% (typ)

Shutdown Current

1.0µA (max)

Supply Current

17.5mA (typ)

General Description

The LM4834 is a monolithic integrated circuit that provides DC volume control, and a bridged audio power amplifier capable of producing 1.75W into 4 with less than 1.0% (THD). More...


Applications

•Multimedia Monitors
•Desktop and Portable Computers
  Typical Application
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Typical Performance

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  Block Diagram
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Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM4834 Boomer ® Audio Power Amplifier Series 1.75W Audio Power Amplifier with DC Volume Control and Microphone Preamp 497
Kbytes		 20-Oct-04 Download
LM4834 Boomer ® Audio Power Amplifier Series 1.75W Audio Power Amplifier with DC Volume Control and Microphone Preamp (Japanese)
 464 Kbytes   Download

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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
LM4834MSSSOP-EIAJ28NOPB3260RoHS Download Lifetime buyN/A
 
Buy Now 		1K+$2.00rail
of
47		NSUZXYTT
LM4834MS
12 weeks500
LM4834MSXSSOP-EIAJ28NOPB3260RoHS Download Lifetime buyN/A
 
Buy Now 		1K+$2.00reel
of
2000		NSUZXYTT
LM4834MS
16 weeksN/A

Obsolete Versions

Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LM4834MS
TPA6011A4
National Semiconductor
30 Nov 2009
LM4834MSX
TPA6011A4
National Semiconductor
30 Nov 2009

General Description

The LM4834 is a monolithic integrated circuit that provides DC volume control, and a bridged audio power amplifier capable of producing 1.75W into 4 with less than 1.0% (THD). In addition, the headphone/lineout amplifier is capable of driving 70 mW into 32 with less than 0.1%(THD). The LM4834 incorporates a volume control and an input microphone preamp stage capable of driving a 1 k load impedance.

Boomer® audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components in surface mount packaging. The LM4834 incorporates a DC volume control, a bridged audio power amplifier and a microphone preamp stage, making it optimally suited for multimedia monitors and desktop computer applications.

The LM4834 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM4834MSCS065238968520440200011249079519
LM4834MSXCS065238968520440200011249079519

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


[Information as of 8-Nov-2009]