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參數(shù)資料
| 型號(hào)： | MAX9766ETJ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Single Audio Amplifier |
| 中文描述： | 0.75 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC32 |
| 封裝： | 5 X 5 MM, 0.80 MM HEIGHT, EXPOSED PAD, TQFN-32 |
| 文件頁(yè)數(shù)： | 1/32頁(yè) |
| 文件大小： | 1100K |
| 代理商： | MAX9766ETJ |
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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 I
2
C 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 I
2
C 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. Patented click-and-pop
suppression eliminates audible transients on power and
shutdown cycles.
In speaker mode, the amplifiers can deliver up to
750mW of continuous average power into a 4
load. In
headphone mode, the amplifier can deliver up to 65mW
of continuous average power into a 16
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
2
C-
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.
Applications
Notebooks
Digital Cameras
Features
750mW BTL Stereo Speaker Amplifier
65mW Stereo Headphone Amplifier
2.7V to 5.5V Single-Supply Operation
Patented Click-and-Pop Suppression
Low 0.003% THD+N
Low Quiescent Current: 13mA
Low-Power Shutdown Mode: 5μA
MUTE Function
Headphone Sense Input
Stereo 2:1 Input Multiplexer
Optional 2-Wire, I
2
C-Compatible, or Parallel
Interface
Small 32-Pin Thin QFN (5mm
5mm
0.8mm)
Package
Ordering Information
M
750mW Audio Amplifiers with Headphone Amp,
Microphone Preamp, and Input Mux
________________________________________________________________
Maxim Integrated Products
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.
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
19-2862; Rev 1; 2/05
PART
TEMP RANGE
-40
o
C to +85
o
C
-40
o
C to +85
o
C
-40
o
C to +85
o
C
PIN-PACKAGE
32 Thin QFN-EP*
32 Thin QFN-EP*
32 Thin QFN-EP*
MAX9765
ETJ
MAX9766
ETJ
MAX9767
ETJ
Pin Configurations and Functional Diagrams appear at end of data
sheet.
Purchase of I
2
C components from Maxim Integrated Products,
Inc., or one of its sublicensed Associated Companies, conveys a
license under the Philips I
2
C Patent Rights to use these compo-
nents in an I
2
C system, provided that the system conforms to the
I
2
C Standard Specification defined by Philips.
*
EP = Exposed paddle.
PDA Audio Systems
Tablet PCs
Cell Phones
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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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