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LM4663  Product Folder

2.5 W Stereo Class D Audio Power Amplifier
Generic P/N 4663
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 +4.5 - +5.5 V 
PowerAtFourOhms OnePercentTHD (Watt) 2.10 
PowerAtEightOhms OnePercentTHD (Watt) - 
PowerAtFourOhms TenPercentTHD (Watt) - 
PowerAtEightOhms TenPercentTHD (Watt) - 
SNR (dB) - 
SNR Conditions - 
PSRR (dB) 44 
PSRR Conditions 200mV, Vin=0 
THD (%) .20 
THD Conditions Po=1W 
Audio Mux - 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LM4663 Boomer ® Audio Power Amplifier Series 2 Watt Stereo Class D Audio Power Amplifier with Stereo Headphone Amplifier 691 Kbytes 5-Nov-02 View Online Download Receive via Email
LM4663 Boomer ® Audio Power Amplifier Series 2 Watt Stereo Class D Audio Power Amplifier with Stereo Headphone Amplifier (JAPANESE)
 574 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
LM4663MTTSSOP24StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.52rail
of
61		NSUZXYTT
LM4663MT
13-15 weeks20000
LM4663MTXTSSOP24StatusFull productionN/AN/A 
Buy Now		1K+$1.52reel
of
2500		NSUZXYTT
LM4663MT
13-15 weeks20000

General Description

The LM4663 is a fully integrated single supply, high efficiency Class D audio power amplifier solution. The LM4663 utilizes a continuous time delta-sigma modulation technique that lowers output noise and THD when compared to conventional pulse width modulators.

The LM4663 also features a stereo headphone amplifier that delivers 80mW into a 32 headset with less than 0.5% THD. The LM4663 has two stereo inputs that can be selected to drive either the headphone amplifier or the Class D amplifier. All amplifiers are protected with thermal shutdown.

In standby mode, the LM4663 draws an extremely low 2µA supply current. With a 4 load, the IC's efficiency for a 250mW power level is 69%, reaching 83% at a power level of 2W. The IC features click and pop reduction circuitry that minimizes audible popping during device turn-on and turn-off. The LM4663 is available in a 24-lead TSSOP package, ideal for portable and desktop computer applications.

Features

  • Delta-sigma modulator.
  • Two stereo input selector.
  • "Click and pop" suppression circuitry.
  • Micropower shutdown mode.
  • 24 lead TSSOP package (No heatsink required).
  • Stereo headphone amplifier.

Key Specification

PO at THD+N=1%

2.1W (typ)

THD+N at 1kHz at 1 Watt into 4 (Power Amp)

0.2% (typ)

Efficiency at 2 Watt into 4

83% (typ)

Efficiency at 250mW into 4

69% (typ)

Total quiescent power supply current

22mA (typ)

Total shutdown power supply current

2µA (typ)

THD+N 1kHz, 20mW, 32 (Headphone)

0.15% (typ)

Single supply range

4.5V to 5.5V

Applications

  • Portable computers
  • Desktop computers
  • Multimedia Monitors

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM4663MTCMOS721420014108000005226190940
LM4663MTXCMOS721420014108000005226190940

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

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