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LM4838  Product Folder

Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain
Generic P/N 4838
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing		 Reliability
Metrics

Parametric Table Parametric Table
Temperature Min (deg C) -40 
Temperature Max (deg C) 85 
Channels (Channels) 2 
User Supply (Volt) 5 
Supply Range +2.7 - +5.5 V 
PowerAtFourOhms OnePercentTHD (Watt) 2 
PowerAtEightOhms OnePercentTHD (Watt) 1.10 
PowerAtFourOhms TenPercentTHD (Watt) - 
PowerAtEightOhms TenPercentTHD (Watt) 1.50 
SNR (dB) 93 
SNR Conditions Pout=1.1W 
PSRR (dB) 74 
PSRR Conditions 120 Hz RL=8 Ohms 
THD (%) .30 
THD Conditions Po=1W @Vs=5V, 20Hz-20kHz 
Audio Mux - 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LM4838 Boomer ® Audio Power Amplifier Series Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain 2085 Kbytes 7-Jan-03 View Online Download Receive via Email

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

Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
LM4838LQLLP28StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.44reel
of
1000		NS
UZXYTT
L4838LQ
10-12 weeks20000
LM4838LQXLLP28StatusFull productionN/AN/A 1K+$1.44reel
of
4500		NS
UZXYTT
L4838LQ
10-12 weeks10000
LM4838MTTSSOP28StatusFull productionN/AN/ASamples
Buy Now		1K+$1.80rail
of
48		NSUZXYTT
LM4838MT
12-14 weeks40000
LM4838MTXTSSOP28StatusFull productionN/AN/A 1K+$1.80reel
of
2500		NSUZXYTT
LM4838MT
12-14 weeks50000
LM4838MTETSSOP EXP PAD28StatusFull productionN/AN/ASamples
Buy Now 		1K+$1.70rail
of
48		NSUZXYTT
LM4838MTE
10-12 weeks40000
LM4838MTEXTSSOP EXP PAD28StatusFull productionN/AN/A 1K+$1.70reel
of
2500		NSUZXYTT
LM4838MTE
10-12 weeks100000
LM4838ITLmicroSMD36StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.80reel
of
250		XYTT
I GA4
10-12 weeks10000
LM4838ITLXmicroSMD36StatusFull productionN/AN/A 1K+$1.80reel
of
1000		XYTT
I GA4
10-12 weeks10000

General Description

The LM4838 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4 with less than 1.0% THD or 2.2W into 3 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 LM4838 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 LM4838 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.

Features

  • DC Volume Control Interface
  • 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

Key Specification

PO at 1% THD+N

 

into 3 (LQ & MTE)

2.2W (typ)

into 4 (LQ & MTE)

2.0W (typ)

into 8 (MT, MTE, ITL, & LQ)

1.1W (typ)

Single-ended mode - THD+N at 85mW into 32

1.0%(typ)

Shutdown current

0.7µA (typ)

Applications

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

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM4838LQCS06508800006000006169643205
LM4838LQXCS06508800006000006169643205

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

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