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LM4881 Product Folder

Boomer Dual 200 mW Headphone Amplifier with Shutdown Mode

Generic P/N 4881

Parametric Table

Temperature Min (deg C)	-40
Temperature Max (deg C)	85
Channels (Channels)	2
User Supply (Volt)	5
Supply Range	+2.7 - +5.5 V
PowerAtEightOhms OnePercentTHD (Watt)	.26
PowerAtSixteenOhms OnePercentTHD (Watt)	.15
PowerAtThirtyTwoOhms OnePercentTHD (Watt)	.0920
PowerAtEightOhms TenPercentTHD (Watt)	.30

PowerAtSixteenOhms TenPercentTHD (Watt)	.20
PowerAtThirtyTwoOhms TenPercentTHD (Watt)	.11
SNR (dB)	100
SNR Conditions	-
PSRR (dB)	50
PSRR Conditions	f=120 Hz
THD (%)	.02
THD Conditions	Po=75mW @ R=32 ohms

Datasheet

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LM4881 Dual 200 mW Headphone Amplifier with Shutdown Mode	424 Kbytes	10-Dec-01	View Online	Download	Receive via Email
LM4881 Dual 200 mW Headphone Amplifier with Shutdown Mode (JAPANESE)	416 Kbytes

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Package Availability, Models, Samples & Pricing

Part Number

Package

Status

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking

Type

Pins

MSL/Lead-Free Availability

Lead
Time

Qty

SPICE

IBIS

Qty

$US each

LM4881M

SOIC NARROW

Status

Full production

N/A

1K+

$0.60

rail
of
95

NSXYTT
LM48
81M

3-6 weeks

50000

LM4881MX

SOIC NARROW

Status

Full production

N/A

1K+

$0.60

reel
of
2500

NSXYTT
LM48
81M

3-6 weeks

50000

LM4881MM

MINI SOIC

Status

Full production

N/A

1K+

$0.60

reel
of
1000

ZXTT
Z81

15-17 weeks

50000

LM4881MMX

MINI SOIC

Status

Full production

N/A

1K+

$0.60

reel
of
3500

ZXTT
Z81

15-17 weeks

50000

LM4881N

MDIP

Status

Full production

N/A

1K+

$0.67

rail
of
40

NSUZXYTT
LM4
881N

3-6 weeks

50000

LM4881 MDA

Unpackaged Die

Full production

N/A

tray
of
N/A

N/A

General Description

The LM4881 is a dual audio power amplifier capable of delivering 200mW of continuous average power into an 8 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 using surface mount packaging. Since the LM4881 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The LM4881 features an externally controlled, low power consumption shutdown mode which is virtually clickless and popless, as well as an internal thermal shutdown protection mechanism.

The unity-gain stable LM4881 can be configured by external gain-setting resistors.

Features

MSOP surface mount packaging
Unity-gain stable
External gain configuration capability
Thermal shutdown protection circuitry
No bootstrap capacitors, or snubber circuits are necessary

Key Specification

THD+N at 1kHz at 125mW continuous average output power into 8	0.1% (max)
THD+N at 1kHz at 75mW continuous average output power into 32	0.02% (typ)
Output power at 10% THD+N at 1kHz into 8	300mW (typ)
Shutdown Current	0.7µA (typ)
Supply voltage range	2.7V to 5.5V

Applications

Headphone Amplifier
Personal Computers
Microphone Preamplifier

Reliability Metrics

Part Number	Process	Sample Size (EFR)	Device Hours	Long Term Failure Rates (FITS)	MTTF
LM4881 MDA	CS065	8800	600000	6	169643205
LM4881M	CS065	8800	600000	6	169643205
LM4881MM	CS065	8800	600000	6	169643205
LM4881MMX	CS065	8800	600000	6	169643205
LM4881MX	CS065	8800	600000	6	169643205
LM4881N	CS065	8800	600000	6	169643205

For more information on Reliablitity Metrics, please click here.

[Information as of 15-Jan-2004]

LM4881 Product Folder

Datasheet

Package Availability, Models, Samples & Pricing

General Description

Features

Key Specification

Applications

Reliability Metrics