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參數(shù)資料
| 型號： | MAX9741 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 12W+12W, Filterless, Spread-Spectrum, Stereo, Class D Amplifier |
| 中文描述： | 12W+12W、低EMI、擴(kuò)頻、立體聲D類放大器 |
| 文件頁數(shù)： | 1/1頁 |
| 文件大小： | 43K |
| 代理商： | MAX9741 |
General Description
The MAX9741 stereo Class D audio power amplifier
provides Class AB amplifier performance with Class D
efficiency, conserving board space and eliminating the
need for a bulky heatsink. Using a Class D architecture,
it delivers 12W continuous output power into 8
loads.
Proprietary and patent-protected modulation and switch-
ing schemes render the traditional Class D EMI suppres-
sion output filter unnecessary.
The MAX9741 offers two modulation schemes: a fixed-
frequency mode (FFM), and a spread-spectrum mode
(SSM) that reduces EMI-radiated emissions due to the
modulation frequency. The device utilizes a fully differ-
ential architecture, a full bridged output, and offers
comprehensive click-and-pop suppression.
The MAX9741 features high 80dB PSRR, low 0.07%
THD+N, and SNR in excess of 100dB. Short-circuit and
thermal-overload protection prevent the device from
being damaged during a fault condition. The MAX9741
is available in a 56-pin TQFN (8mm x 8mm x 0.8mm)
package. The MAX9741 is specified over the extended
-40°C to +85°C temperature range.
Applications
Features
Filterless Class D Amplifier
Unique Spread-Spectrum Mode Offers 5dB
Emissions Improvement Over Conventional
Methods
Up to 88% Efficient into 16
12W+12W Continuous Output Power into 8
15W+15W Continous Output Power into 16
Low 0.07% THD+N
High PSRR (80dB at 1kHz)
10V to 25V Single-Supply Operation
Differential Inputs Minimize Common-Mode Noise
Pin-Selectable Gain Reduces Component Count
Industry-Leading Click-and-Pop Suppression
Low Quiescent Current (24mA)
Low-Power Shutdown Mode (0.2μA)
Short-Circuit and Thermal-Overload Protection
Available in Thermally Efficient, Space-Saving
56-Pin TQFN (8mm x 8mm x 0.8mm) Package
M
12W+12W, Filterless, Spread-Spectrum,
Stereo, Class D Amplifier
________________________________________________________________
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
XX-XXXX; Rev 0; 10/05
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
PKG
CODE
T5688-3
MAX9741ETN+
-40°C to +85°C
56 TQFN-EP*
+
Denotes lead-free package.
*
EP = Exposed paddle.
LCD TVs
LCD Monitors
Desktop PCs
LCD Projectors
Hands-Free Car
Phone Adaptors
Automotive
Pin Configurations appear at end of data sheet.
OUTR+
FILTERLESS
CLASS D
AMPLIFIERS
DRIVE 2 X 13W
INTO 8
LOADS
OUTR-
GAIN
CONTROL
INR+
DIFFERENTIAL AUDIO
INPUTS ELIMINATE
NOISE PICKUP
PROGRAMMABLE
SWITCHING
FREQUENCY
INR-
INL+
INL-
FS1, FS2
G2
G1
2
CLASS D
MODULATOR
OUTPUT
PROTECTION
OUTL+
OUTL-
MAX9741
Simplified Block Diagram
相關(guān)PDF資料 |
PDF描述 |
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| MAX9765ETJ | Single Audio Amplifier |
| MAX9766ETJ | Single Audio Amplifier |
| MAX9890BEBL-T | Audio Click-Pop Suppressor |
| MAX9890AEBL-T | Audio Click-Pop Suppressor |
| MAX9890AETA | LJT 41C 41#20 SKTPLUG |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9741ETN+ | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 2CH STEREO 12W CLS-D 56TQFN EP - Rail/Tube |
| MAX9741ETN+D | 功能描述:音頻放大器 12W+12W Low-EMI Class D Amplifier 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 |
| MAX9741ETN+T | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 2CH STEREO 12W CLS-D 56TQFN EP - Tape and Reel |
| MAX9741ETN+TD | 功能描述:音頻放大器 12W+12W Low-EMI Class D Amplifier 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 |
| MAX9741EVKIT | 制造商:Maxim Integrated Products 功能描述:12W+12W FILTERLESS - Rail/Tube 制造商:Maxim Integrated Products 功能描述:12W+12W FILTERLESS SPREAD-SPECTRU - Rail/Tube |
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