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LM4900  Product Folder

265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode
Generic P/N 4900
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) 1 
User Supply (Volt) 5 
Supply Range +2.0 - +5.5 V 
PowerAtFourOhms OnePercentTHD (Watt) - 
PowerAtEightOhms OnePercentTHD (Watt) - 
PowerAtFourOhms TenPercentTHD (Watt) - 
PowerAtEightOhms TenPercentTHD (Watt) - 
SNR (dB) 100 
SNR Conditions - 
PSRR (dB) 67 
PSRR Conditions 1KHz, 200mV 
THD (%) .40 
THD Conditions Po=.4Wrms@Vs=5V, R=8ohms, @20Hz-20kHz 
Audio Mux - 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LM4900 265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode 772 Kbytes 26-Sep-01 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
LM4900LDLLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.40reel
of
1000		XYTT
GC0
8-10 weeks50000
LM4900LDXLLP8StatusFull productionN/AN/A 1K+$0.40reel
of
4500		XYTT
GC0
8-10 weeks50000
LM4900MSOIC NARROW8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.40rail
of
95		NSXYTT
LM49
00M
8-10 weeks50000
LM4900MXSOIC NARROW8StatusFull productionN/AN/A 1K+$0.40reel
of
2500		NSXYTT
LM49
00M
8-10 weeks50000
LM4900MMMINI SOIC8StatusFull productionN/AN/ASamples
Buy Now 		1K+$0.40reel
of
1000		ZXTT
GCO
15-17 weeks50000
LM4900MMXMINI SOIC8StatusFull productionN/AN/A 1K+$0.40reel
of
3500		ZXTT
GCO
15-17 weeks250000

General Description

The LM4900 is a bridged audio power amplifier capable of delivering 265mW of continuous average power into an 8 load with 1% THD+N from a 3.3V power supply.

Boomer® audio power amplifiers were designed specifically to provide high quality output power from a low supply voltage while requiring a minimal amount of external components. Since the LM4900 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable applications.

The LM4900 features an externally controlled, low power consumption shutdown mode, and thermal shutdown protection.

The closed loop response of the unity-gain stable LM4900 can be configured by external gain-setting resistors.

Features

  • MSOP, LLP, and SOP packaging
  • No output coupling capacitors, bootstrap capacitors, or snubber circuits are necessary
  • Thermal shutdown protection circuitry
  • Unity-gain stable
  • External gain configuration capability
  • Latest generation "click and pop" suppression circuitry

Key Specification

THD+N at 1kHz for 265mW continuous average output power into 8, VDD = 3.3V1.0% (max)
THD+N at 1kHz for 675mW continuous average output power into 8, VDD = 5V1.0% (max)
Shutdown current0.1µA (typ)

Applications

  • Cellular phones
  • PDA's
  • Any portable audio application

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM4900LDCMOS721420014108000005226190940
LM4900LDXCMOS721420014108000005226190940
LM4900MCMOS721420014108000005226190940
LM4900MMCMOS721420014108000005226190940
LM4900MMXCMOS721420014108000005226190940
LM4900MXCMOS721420014108000005226190940

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

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