參數(shù)資料
型號(hào)： MAX9766ETJ+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/33頁(yè)
文件大?。?/td> 0K
描述： IC AMP AUDIO .75W MONO AB 32TQFN
標(biāo)準(zhǔn)包裝： 60
類型： AB 類
輸出類型： 1-通道（單聲道），帶立體聲耳機(jī)
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： 750mW x 1 @ 4 歐姆; 65mW x 2 @ 16 歐姆
電源電壓： 2.7 V ~ 5.5 V
特點(diǎn)： 消除爆音，I²C，輸入多路復(fù)用器，麥克風(fēng)，靜音，短路和熱保護(hù)，關(guān)機(jī)
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 32-TQFN-EP（5x5）
封裝/外殼： 32-WFQFN 裸露焊盤
包裝： 管件
General Description
The MAX9765/MAX9766/MAX9767 family combines
speaker, headphone, and microphone amplifiers, all in
a small thin QFN package. The MAX9765 is targeted at
stereo speaker playback applications and includes a
stereo bridge-tied load (BTL) speaker amp, stereo
headphone amp, single-ended output mic amp, input
MUX, and I2C control. The MAX9766 is targeted at
mono speaker playback applications and includes a
mono BTL speaker amp, stereo headphone amp, differ-
ential output mic amp, input MUX, and I2C control. The
MAX9767 is targeted at applications that do not require
a headphone amp and includes a stereo BTL speaker
amp, differential output mic amp, and parallel control.
These devices operate from a single 2.7V to 5.5V supply.
A high 95dB PSRR allows these devices to operate from
noisy supplies without additional power conditioning. An
ultra-low 0.003% THD+N ensures clean, low distortion
amplification of the audio signal. Click-and-pop suppres-
sion eliminates audible transients on power and shut-
down cycles.
In speaker mode, the amplifiers can deliver up to
750mW of continuous average power into a 4Ω load. In
headphone mode, the amplifier can deliver up to 65mW
of continuous average power into a 16Ω load. The gain
of the amplifiers is externally set, allowing maximum
flexibility in optimizing output levels for a given load.
The MAX9765/MAX9766 also feature a 2:1 input multi-
plexer, allowing multiple audio sources to be selected.
The various functions are controlled by either an I
2C-
compatible (MAX9765/MAX9766) or simple parallel
control interface (MAX9767).
All devices include two low-noise microphone pre-
amps, a differential amp for internal microphones, and
a single-ended amplifier for additional external micro-
phones. A microphone bias output is provided, reduc-
ing external component count.
The MAX9765/MAX9766/MAX9767 are available in a
thermally efficient 32-pin thin QFN package (5mm
5mm 0.8mm). All devices have short-circuit and
thermal-overload protection (OVP) and are specified
over the extended -40°C to +85°C temperature range.
Features
750mW BTL Stereo Speaker Amplifier
65mW Stereo Headphone Amplifier
2.7V to 5.5V Single-Supply Operation
Click-and-Pop Suppression
Low 0.003% THD+N
Low Quiescent Current: 13mA
Low-Power Shutdown Mode: 5A
MUTE Function
Headphone Sense Input
Stereo 2:1 Input Multiplexer
Optional 2-Wire, I2C-Compatible, or Parallel
Interface
Small 32-Pin Thin QFN (5mm 5mm 0.8mm)
Package
MAX9765/MAX9766/MAX9767
750mW Audio Amplifiers with Headphone Amp,
Microphone Preamp, and Input Mux
________________________________________________________________ Maxim Integrated Products
1
MUX
INL1
INL2
MUX
INR1
INR2
DEVICE
CONTROL
AUXIN
MICBIAS
MICIN-
MICIN+
SPKR
LEFT
SPKR
RIGHT
HEADPHONE
CONTROL
MICOUT
BIAS
MUX
MAX9765
Simplified Diagram
Ordering Information
19-2862; Rev 2; 3/07
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
EVALUATION
KIT
AVAILABLE
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX9765ETJ
-40
oC to +85oC
32 TQFN-EP*
T3255-4
MAX9766ETJ
-40
oC to +85oC
32 TQFN-EP*
T3255-4
MAX9767ETJ
-40
oC to +85oC
32 TQFN-EP*
T3255-4
*EP = Exposed paddle.
Pin Configurations and Functional Diagrams appear at end of data
sheet.
PDA Audio Systems
Tablet PCs
Cell Phones
Notebooks
Digital Cameras
Applications
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9766ETJ+ 功能描述:音頻放大器 Integrated Circuits (ICs) 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
MAX9766ETJ+T 功能描述:音頻放大器 Integrated Circuits (ICs) 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
MAX9766ETJ-T 功能描述:音頻放大器 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
MAX9767ETJ 功能描述:音頻放大器 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
MAX9767ETJ+ 功能描述:音頻放大器 Integrated Circuits (ICs) 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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