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LM4936 Stereo 2W Audio Power Amplifiers with Volume Control and Selectable Control Interface (SPI or I2C)


source: | post time:2010-03-24

Part Number(s)
(NSID)
Top View Type Pins MSL Rating Peak Reflow RoHS
Status
CAD Symbols Models Package
Marking
Format
LM4936MH/NOPB
LM4936MH
TSSOP EXP PAD 28 1
1
260
260
Detail Download N/A
NSUZXYTTE#
LM4936MH
LM4936MHX/NOPB
LM4936MHX
TSSOP EXP PAD 28 1
1
260
260
Detail Download N/A
NSUZXYTTE#
LM4936MH

PDFClick link to Download

Description

The LM4936 is a monolithic integrated circuit that provides volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4 with less than 1% THD or 2.2W into 3 with less than 1% THD.

Boomer® audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4936 incorporates a SPI or I2C Control Interface that runs the volume control, 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.

Features

Selectable SPI or I2C Control Interface
System Beep Detect
Stereo switchable bridged/single-ended power amplifiers
Selectable internal/external gain and bass boost
"Click and pop" suppression circuitry
Thermal shutdown protection circuitry
Headphone Sense

Key Specification

PO at 1% THD+N

 

into 3

2.2W (typ)

into 4

2.0W (typ)

into 8

1.25W (typ)

Single-ended mode - THD+N at 90mW into 32

1%(typ)

Shutdown current

0.7µA (typ)

Applications

Portable and Desktop Computers
Multimedia Monitors
Portable Radios, PDAs, and Portable TVs

Diagrams

Typical Application
click for larger image


 

 

 

Connection Diagram
*click for larger image


 


Typical Performance
*click for larger image


source:ShenZhen henlito electronic co.,ltd.


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