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LM4834  Product Folder

Boomer 1.75W Audio Power Amplifier with DC Volume Control and Microphone Preamp
Generic P/N 4834
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)
User Supply (Volt)
Supply Range +4.5 - +5.5 V 
PowerAtFourOhms OnePercentTHD (Watt) 1.75 
PowerAtEightOhms OnePercentTHD (Watt) 1.10 
PowerAtFourOhms TenPercentTHD (Watt) 2.20 
PowerAtEightOhms TenPercentTHD (Watt) 1.50 
SNR (dB) 93 
SNR Conditions Pout=1.1W 
PSRR (dB) 58 
PSRR Conditions 120 Hz 
THD (%) .30 
THD Conditions Po=1W @Vs=5V, 20Hz-20kHz 
Audio Mux

Datasheet

TitleSize in KbytesDate
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Download

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LM4834 1.75W Audio Power Amplifier with DC Volume Control and Microphone Preamp 436 Kbytes 31-Aug-00 View Online Download Receive via Email
LM4834 1.75W Audio Power Amplifier with DC Volume Control and Microphone Preamp (JAPANESE)
456 Kbytes   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
LM4834MSSSOP-EIAJ28StatusFull productionN/AN/A24 Hour Samples
Buy Now
1K+$2.00rail
of
47
NSUZXYTT
LM4834MS
6-8 weeks10000
LM4834MSXSSOP-EIAJ28StatusFull productionN/AN/A 
Buy Now
1K+$2.00reel
of
2000
NSUZXYTT
LM4834MS
6-8 weeks50000
LM4834 MDCUnpackaged DieFull productionN/AN/A   tray
of
N/A
-
N/A0
LM4834 MWCWaferFull productionN/AN/A   wafer jar
of
N/A
-
N/A0

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 4Ohm with less than 1.0% (THD). In addition, the headphone/lineout amplifier is capable of driving 70 mW into 32Ohm with less than 0.1%(THD). The LM4834 incorporates a volume control and an input microphone preamp stage capable of driving a 1 kOhm 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.

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 8Ohm at 1kHz

0.5% (max)

Output Power into 4Ohm at 1.0% THD+N

1.75W (typ)

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

0.1% (typ)

Shutdown Current

1.0µA (max)

Supply Current

17.5mA (typ)

Applications

  • Multimedia Monitors
  • Desktop and Portable Computers

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM4834 MDCCS06508800006000006169643205
LM4834 MWCCS06508800006000006169643205
LM4834MSCS06508800006000006169643205
LM4834MSXCS06508800006000006169643205

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]