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    參數(shù)資料
    

    


    


    
型號(hào)：
MAX9791CETI+T

    

    
廠商：
Maxim Integrated Products

    

    
文件頁(yè)數(shù)：
1/34頁(yè)

    

    
文件大?。?/td>
0K

    

    
描述：
IC AMP AUDIO 2.2W STER D 28WQFN

    

    
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：
D 類
    		

    

    
輸出類型：
2-通道（立體聲）帶立體聲耳機(jī)和超低音器
    		

    

    
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量：
2.2W x 2 @ 4 歐姆; 180mW x 2 @ 32 歐姆
    		

    

    
電源電壓：
4.5 V ~ 5.5 V
    		

    

    
特點(diǎn)：
消除爆音，LDO，短路保護(hù)和熱保護(hù)，關(guān)機(jī)
    		

    

    
安裝類型：
表面貼裝
    		

    

    
供應(yīng)商設(shè)備封裝：
28-TQFN-EP（4x4）
    		

    

    
封裝/外殼：
28-WFQFN 裸露焊盤(pán)
    		

    

    
包裝：
帶卷 (TR)
    		

    

    

    

	
    
    
    

    
    
	
    General Description
    The MAX9791 combines a stereo 2W Class D power
    amplifier, a stereo 180mW DirectDrive headphone
    amplifier, and a 120mA low-dropout (LDO) linear regu-
    lator in a single device. The MAX9792 combines a
    mono 3W Class D power amplifier, a stereo 180mW
    DirectDrive headphone amplifier, and a 120mA LDO
    linear regulator in a single device.
    The MAX9791/MAX9792 feature Maxim’s DirectDrive
    headphone amplifier architecture that produces a
    ground-referenced output from a single supply, eliminat-
    ing the need for large DC-blocking capacitors, saving
    cost, board space, and component height. High 107dB
    DC PSRR and low 0.006% THD+N ensure clean, low-
    distortion amplification of the audio signal.
    The ground sense feature senses and corrects for the
    voltage difference between the output jack ground and
    device signal ground. This feature minimizes head-
    phone amplifier crosstalk by sensing the impedance in
    the ground return trace and correcting for it at the out-
    put jack. This feature also minimizes ground-loop noise
    when the output socket is used as a line out connection
    to other grounded equipment (for example, a PC con-
    nected to a home hi-fi system).
    The MAX9791/MAX9792 feature low RF susceptibility,
    allowing the amplifiers to successfully operate in close
    proximity to wireless applications. The MAX9791/
    MAX9792 Class D amplifiers feature Maxim’s spread-
    spectrum modulation and active emissions limiting cir-
    cuitry. Industry-leading click-and-pop suppression
    eliminates audible transients during power-up and shut-
    down cycles.
    The MAX9791/MAX9792 wake-on-beep feature wakes
    up the speaker and headphone amplifiers when a qual-
    ified beep signal is detected at the BEEP input.
    For maximum flexibility, separate speaker and head-
    phone amplifier control inputs provide independent
    shutdown of the speaker and headphone amplifiers.
    Additionally the LDO can be enabled independently of
    the audio amplifiers.
    The MAX9791/MAX9792 feature thermal-overload and
    output short-circuit protection. The devices are avail-
    able in 28-pin TQFN packages and are specified over
    the -40°C to +85°C extended temperature range.
    Applications
    Notebook Computers
    Tablet PCs
    Portable Multimedia Players
    Features
    o Windows Vista Premium Compliant
    o Low EMI Filterless Class D Speaker Amplifiers
    Pass EN55022B Emissions Limit with 30cm of
    Speaker Cable
    o 180mW DirectDrive Headphone Amplifier
    o Excellent RF Immunity
    o Integrated 120mA LDO
    o Eliminates Headphone Ground Loop Noise
    o Wake-on-Beep Function
    o Click-and-Pop Suppression
    o Short-Circuit and Thermal-Overload Protection
    o Thermally Efficient, Space-Saving Package
    28-Pin TQFN-EP (4mm x 4mm x 0.75mm)
    MAX9791/MAX9792
    Windows Vista-Compliant Class D Speaker
    Amplifiers with DirectDrive Headphone Amplifiers
    ________________________________________________________________
    Maxim Integrated Products
    1
    19-4217; Rev 1; 6/10
    For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
    or visit Maxim’s website at www.maxim-ic.com.
    Ordering Information
    PART
    STEREO/
    MONO
    LDO
    OUTPUT
    PIN-PACKAGE
    MAX9791AETI+
    Stereo
    4.75V
    28 TQFN-EP*
    MAX9791BETI+
    Stereo
    3.3V
    28 TQFN-EP*
    MAX9791CETI+
    Stereo
    1.8V
    28 TQFN-EP*
    MAX9792AETI+
    Mono
    4.75V
    28 TQFN-EP*
    MAX9792CETI+
    Mono
    1.8V
    28 TQFN-EP*
    Note: All devices are specified over the -40°C to +85°C
    extended temperature range.
    +
    Denotes a lead(Pb)-free/RoHS-compliant package.
    *
    EP = Exposed pad.
    DirectDrive is a registered trademark of Maxim Integrated
    Products, Inc.
    Windows Vista is a registered trademark of Microsoft Corp.
    MAX9791
    SPKR_EN
    HP_EN
    LDO_EN
    BEEP
    SPEAKER AND LDO
    SUPPLY
    2.7V TO 5.5V
    HEADPHONE SUPPLY
    2.7V TO 5.5V
    AVDD
    LDO
    1.8V, 3.3V, OR 4.75V
    CLASS D
    AMP
    CLASS D
    AMP
    Simplified Block Diagrams
    Simplified Block Diagrams continued at end of data sheet.
    
    
    
    
    
    


    


    

    相關(guān)PDF資料
    		

    PDF描述
    		

    
    

    
MS27497E10F5PB
CONN RCPT 5POS WALL MNT W/PINS

    

    
MAX9791BETI+T
IC AMP AUDIO 2.2W STER D 28TQFN

    

    
MAX9792AETI+T
IC AMP AUDIO 3.7W MONO D 28TQFN

    

    
MAX9791AETI+T
IC AMP AUDIO 2.2W STER D 28TQFN

    

    
MS27467T15F19P
CONN PLUG 19POS STRAIGHT W/PINS

    

    

    

    


    


    

    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
MAX9792AETI+
功能描述:音頻放大器 Windows Vista Class D Speaker Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel

    

    
MAX9792AETI+T
功能描述:音頻放大器 Windows Vista Class D Speaker Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel

    

    
MAX9792AEVKIT+
功能描述:音頻放大器 Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel

    

    
MAX9792CETI+
功能描述:音頻放大器 Windows Vista Class D Speaker Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel

    

    
MAX9792CETI+T
功能描述:音頻放大器 Windows Vista Class D Speaker Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel

    

    
    
    
    
	
    	
    
    
     
     
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