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LM4730  Product Folder

Stereo 14W Audio Power Amplifier with Mute and Standby Modes
Generic P/N 4730
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing		 Reliability
Metrics

Parametric Table Parametric Table
Temperature Min (deg C) -20 
Temperature Max (deg C) 85 
Channels (Channels) 2 
User Supply (Volt) 34 
Supply Range ± 15 - ± 28 V 
Gain Bandwidth (MHz) - 
Slew Rate (Volts/usec) - 
PowerAtFourOhms OnePercentTHD (Watt) 11 
PowerAtEightOhms OnePercentTHD (Watt) 11 
PowerAtFourOhms TenPercentTHD (Watt) 14 
PowerAtEightOhms TenPercentTHD (Watt) 14 
SNR (dB) - 
SNR Conditions 50 
PSRR (dB) vrip=1vrms, 120Hzsine, terminated 
PSRR Conditions .03 
THD (%) P=1Wf=1kHz, Av=26db, 14Volt 
THD Conditions  

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LM4730 Stereo 14W Audio Power Amplifier with Mute and Standby Modes 647 Kbytes 25-Jul-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
LM4730TATO 22015StatusFull productionN/AN/ASamples
Buy Now		1K+$0.98rail
of
20		NSUZXYTT
LM4730TA
8-10 weeks100000

General Description

The LM4730 is a stereo audio amplifier capable of delivering typically 14W per channel of continuous average output power into a 4 or 8 load with less than 10% THD+N from 20Hz - 20kHz.

Each amplifier has an independent smooth transition fade-in/out mute and a power conserving standby mode which can be controlled by external logic.

The LM4730 has short circuit protection and a thermal shut down feature that is activated when the die temperature exceeds 150°C. The LM4730 also has a under voltage lock out feature for click and pop free power off and on.

The LM4730 has a wide operating supply range from +/-10V - +/-25V allowing for lower cost unregulated power supplies to be used.

Features

  • Minimal amount of external components necessary
  • Quiet fade-in/out mute mode
  • Low current Standby-mode

Key Specification

Output power into 4 or 8, 10% THD+N

14W (typ)

THD+N at 1kHz with 2 X 1W into 8

0.02% (typ)

Mute Attenuation

85dB (typ)

PSRR with fRIPPLE = 120Hz, VRIPPLE = 1VRMS

50dB (typ)

Slew Rate

18V/µs (typ)

Standby Current (+/-17V)

3.5mA (typ)

Applications

  • Audio amplifier for high-end stereo TVs
  • Audio amplifier for component stereo
  • Audio amplifier for compact stereo
  • Audio amplifier for PC satellite speaker systems
  • Audio amplifier for self powered speakers

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM4730TAHV70008800006000006169643205

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

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