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LM4809  Product Folder

LM4809 Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode
Generic P/N 4809
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 +2.0 - +5.5 V 
PowerAtEightOhms OnePercentTHD (Watt) .15 
PowerAtSixteenOhms OnePercentTHD (Watt) .13 
PowerAtThirtyTwoOhms OnePercentTHD (Watt) .08 
PowerAtEightOhms TenPercentTHD (Watt) .18 
PowerAtSixteenOhms TenPercentTHD (Watt) .16 
PowerAtThirtyTwoOhms TenPercentTHD (Watt) .09 
SNR (dB) 107 
SNR Conditions Po=.08W 
PSRR (dB) 70 
PSRR Conditions f=1kHz, ter. input into 50 Ohms 
THD (%) .03 
THD Conditions Po=50mW @ f=20Hz to 20kHz 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LM4809 Boomer ® Audio Power Amplifier Series Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode 903 Kbytes 15-Nov-02 View Online Download Receive via Email
LM4809 Boomer ® Audio Power Amplifier Series Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode (JAPANESE)
 846 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
LM4809LDLLP8StatusFull productionN/AN/ASamples1K+$0.16reel
of
1000		XYTT
G09
8-10 weeks50000
LM4809LDXLLP8StatusFull productionN/AN/A 1K+$0.16reel
of
4500		XYTT
G09
8-10 weeks100000
LM4809MASOIC NARROW8StatusFull productionN/AN/ASamples1K+$0.20rail
of
95		NSXYTT
LM48
09MA
8-10 weeks20000
LM4809MAXSOIC NARROW8StatusFull productionN/AN/A 1K+$0.20reel
of
2500		NSXYTT
LM48
09MA
8-10 weeks20000
LM4809MMMINI SOIC8StatusFull productionN/AN/ASamples1K+$0.20reel
of
1000		ZXTT
G09
15-17 weeks250000
LM4809MMXMINI SOIC8StatusFull productionN/AN/A 1K+$0.20reel
of
3500		ZXTT
G09
15-17 weeks150000
LM4809 MDCUnpackaged DieFull productionN/AN/ASamples  tray
of
N/A		-
N/A0
LM4809 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0

General Description

The LM4809 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16 load with 0.1% (THD+N) from a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4809 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The unity-gain stable LM4809 can be configured by external gain-setting resistors.

The LM4809 features an externally controlled, active-low, micropower consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

Features

  • Active-low shutdown mode
  • "Click and Pop" reduction circuitry
  • Low shutdown current
  • LLP, MSOP, and SO surface mount packaging
  • No bootstrap capacitors required
  • Unity-gain stable

Key Specification

THD+N at 1kHz at 105mW continuous average power into 16

0.1% (typ)

THD+N at 1kHz at 70mW continuous average power into 32

0.1% (typ)

Shutdown Current

0.4µA (typ)

Applications

  • Headphone Amplifier
  • Personal Computers
  • Microphone Preamplifier
  • PDA's

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM4809 MDCCS06508800006000006169643205
LM4809 MWCCS06508800006000006169643205
LM4809LDCS06508800006000006169643205
LM4809LDXCS06508800006000006169643205
LM4809MACS06508800006000006169643205
LM4809MAXCS06508800006000006169643205
LM4809MMCS06508800006000006169643205
LM4809MMXCS06508800006000006169643205

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

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