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    參數(shù)資料
    

    


    


    
型號(hào)：
LM4839LQ/NOPB

    

    
廠商：
NATIONAL SEMICONDUCTOR CORP

    

    
元件分類：
音頻控制

    

    
英文描述：
2 CHANNEL(S), TONE CONTROL CIRCUIT, CQCC28

    

    
封裝：
LLP-28

    

    
文件頁(yè)數(shù)：
1/34頁(yè)

    

    
文件大小：
1104K

    

    
代理商：
LM4839LQ/NOPB


    

    

    

	
    
    
    

    
    
	
    LM4839
    Stereo 2W Audio Power Amplifiers
    with DC Volume Control, Bass Boost, and Input Mux
    General Description
    The LM4839 is a monolithic integrated circuit that provides
    DC volume control, and stereo bridged audio power amplifi-
    ers capable of producing 2W into 4
     (Note 1) with less than
    1.0% THD+N, or 2.2W into 3
     (Note 2) with less than 1.0%
    THD+N.
    Boomer audio integrated circuits were designed specifically
    to provide high quality audio while requiring a minimum
    amount of external components. The LM4839 incorporates a
    DC volume control, stereo bridged audio power amplifiers,
    selectable gain or bass boost, and an input mux making it
    optimally suited for multimedia monitors, portable radios,
    desktop, and portable computer applications.
    The LM4839 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, the LM4839LQ and
    LM4839MTE will deliver 2W into 4
    . The LM4839MT will deliver 1.1W into
    8
    . See the Application Information section for LM4839LQ and LM4839MTE
    usage information.
    Note 2: An LM4839LQ and LM4839MTE that have been properly mounted
    to the circuit board and forced-air cooled will deliver 2.2W into 3
    .
    Key Specifications
    n
    P
    O at 1% THD+N
    n
    into 3
     (LQ & MTE)
    2.2W(typ)
    n
    into 4
     (LQ & MTE)
    2.0W(typ)
    n
    into 8
     (LM4839) (MT, MTE, & LQ)
    1.1W(typ)
    n
    Single-ended mode - THD+N at 85mW into
    32
    1.0%(typ)
    n
    Shutdown current
    0.2A(typ)
    Features
    n
    DC Volume Control Interface
    n
    Input mux
    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
    Applications
    n
    Portable and Desktop Computers
    n
    Multimedia Monitors
    n
    Portable Radios, PDAs, and Portable TVs
    Connection Diagrams
    Boomer is a registered trademark of NationalSemiconductor Corporation.
    LLP Package
    DS200134-83
    Top View
    Order Number LM4839LQ
    See NS Package Number LQA028AA for Exposed-DAP LLP
    April 2002
    LM4839
    Stereo
    2W
    Audio
    Power
    Amplifiers
    with
    DC
    V
    olume
    Control,
    Bass
    Boost,
    and
    Input
    Mux
     2002 National Semiconductor Corporation
    DS200134
    www.national.com
    
    
    
    
    
    


    


    

    相關(guān)PDF資料
    		

    PDF描述
    		

    
    

    
LM4839LQX/NOPB
2 CHANNEL(S), TONE CONTROL CIRCUIT, CQCC28

    

    
LM4840LQX/NOPB
2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC28

    

    
LM4840LQ/NOPB
2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC28

    

    
LM4840MTX/NOPB
2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28

    

    
LM4840MT/NOPB
2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28

    

    

    

    


    


    

    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
LM4839MT
 制造商:Texas Instruments 功能描述:Stereo 1.1W Audio Amplifiers,LM4839MT

    

    
LM4839MT/NOPB
功能描述:IC AMP AUDIO PWR 2.2W AB 28TSSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS
	Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)

    

    
LM4839MTBD
功能描述:BOARD EVALUATION LM4839MT RoHS:否 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS
	Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:-

    

    
LM4839MTE
 制造商:Texas Instruments 功能描述:AMP AUDIO STEREO 2.2W SMD TSSOP28

    

    
LM4839MTE/NOPB
功能描述:IC AMP AUDIO PWR 2.2W AB 28TSSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS
	Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)

    

    
    
    
    
	
    	
    
    
     
     
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