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LM4849  Product Folder

Stereo 2W Audio Power Amplifiers with DC Volume Control and Input Mux
Generic P/N 4849
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 Po=1.1W 
PSRR (dB) 74 
PSRR Conditions 120Hz RL=8ohm 
THD (%) .30 
THD Conditions Po=1W @Vs=5V 20Hz-20kHz 
Audio Mux Yes 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LM4849 Boomer ® Audio Power Amplifier Series Stereo 2W Audio Power Amplifiers with DC Volume Control and Input Mux 690 Kbytes 20-Aug-03 View Online Download Receive via Email

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Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
LM4849MHTSSOP EXP PAD28StatusFull productionN/AN/ASamples1K+$0.90rail
of
48		NSUZXYTT
LM4849MH
8 weeks0
LM4849MHXTSSOP EXP PAD28StatusFull productionN/AN/A 1K+$0.90reel
of
2500		NSUZXYTT
LM4849MH
8 weeks0

General Description

The LM4849 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+N, or 2.2W into 3 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 LM4849 incorporates a DC volume control, stereo bridged audio power amplifiers, and an input mux making it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications.

The LM4849 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
  • Input mux
  • Stereo switchable bridged/single-ended power amplifiers
  • "Click and pop" suppression circuitry
  • Thermal shutdown protection circuitry

Key Specification

PO at 1% THD+N  
into 3 (Note2)2.2W (typ)
into 4 (Note1)2.0W (typ)
into 81.1W (typ)
Single-ended mode - THD+N at 85mW into 321.0% (typ)
Shutdown Current0.2µA (typ)

Applications

  • Portable and Desktop Computers
  • Multimedia, LCD Monitors/TV
  • 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
LM4849MHXCS06508800006000006169643205

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

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