LM4936MH National Semiconductor, LM4936MH Datasheet

LM4936MH

Manufacturer Part Number

LM4936MH

Description

IC,Audio Amplifier,DUAL,TSSOP,28PIN,PLASTIC

Manufacturer

National Semiconductor

Datasheet

1.LM4936MH.pdf (28 pages)

Specifications of LM4936MH

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Available stocks

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Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

LM4936MH

Manufacturer:

NS/国半

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LM4936MHX/NOPB

Manufacturer:

NS/TI

Quantity:

1 300

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LM4936

Stereo 2W Audio Power Amplifiers with Volume Control

and Selectable Control Interface (SPI or I

General Description

The LM4936 is a monolithic integrated circuit that provides

volume control, and stereo bridged audio power amplifiers

capable of producing 2W into 4Ω (Note 1) with less than 1%

THD or 2.2W into 3Ω (Note 2) with less than 1% THD.

Boomer

to provide high quality audio while requiring a minimum

amount of external components. The LM4936 incorporates a

SPI or I

stereo bridged audio power amplifiers and a selectable gain

or bass boost. All of the LM4936’s features (i.e. SD, Mode,

Mute, Gain Sel) make it optimally suited for multimedia

monitors, portable radios, desktop, and portable computer

applications.

The LM4936 features an externally controlled, low-power

consumption shutdown mode, and both a power amplifier

and headphone mute for maximum system flexibility and

performance.

Note 1: When properly mounted to the circuit board, LM4936MH will deliver

2W into 4Ω. See Application Information section Exposed-DAP package

PCB Mounting Considerations for more information.

Note 2: An LM4936MH that has been properly mounted to the circuit board

and forced-air cooled will deliver 2.2W into 3Ω.

Connection Diagram

Boomer

is a registered trademark of NationalSemiconductor Corporation.

C Control Interface that runs the volume control,

audio integrated circuits were designed specifically

See NS Package Number MXA28A for Exposed-DAP TSSOP

DS201178

Order Number LM4936MH

TSSOP Package

Top View

Key Specifications

n P

n Single-ended mode - THD+N at 90mW into 32Ω 1%(typ)

n Shutdown current

Features

n Selectable SPI or I

n System Beep Detect

n Stereo switchable bridged/single-ended power amplifiers

n Selectable internal/external gain and bass boost

n “Click and pop” suppression circuitry

n Thermal shutdown protection circuitry

n Headphone Sense

Applications

n Portable and Desktop Computers

n Multimedia Monitors

n Portable Radios, PDAs, and Portable TVs

into 3Ω

into 4Ω

into 8Ω

at 1% THD+N

20117802

C Control Interface

www.national.com

1.25W (typ)

0.7µA (typ)

2.2W (typ)

2.0W (typ)

April 2005

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