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MAX9713|MAX9714 PDF预览

MAX9713|MAX9714

更新时间： 2024-11-26 23:52:11
品牌 Logo 应用领域
美信 - MAXIM 放大器
页数 文件大小 规格书
18页 686K
描述
6W. Filterless. Spread-Spectrum Mono/Stereo Class D Amplifiers

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MAX9713|MAX9714 数据手册

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19-3039; Rev 0; 10/03  
6W, Filterless, Spread-Spectrum  
Mono/Stereo Class D Amplifiers  
General Description  
Features  
o Filterless Class D Amplifier  
The MAX9713/MAX9714 mono/stereo class D audio  
power amplifiers provide class AB amplifier performance  
with class D efficiency, conserving board space and  
eliminating the need for a bulky heatsink. Using a class  
D architecture, these devices deliver up to 6W while  
offering greater than 85% efficiency. Proprietary and  
patent-protected modulation and switching schemes  
render the traditional class D output filter unnecessary.  
o Unique Spread-Spectrum Mode Offers 5dB  
Emissions Improvement Over Conventional  
Methods  
o Up to 85% Efficient  
o 6W Output Power into 8Ω  
o Low 0.07% THD+N  
o High PSRR (76dB at 1kHz)  
The MAX9713/MAX9714 offer 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  
differential architecture, a full bridged output, and com-  
prehensive click-and-pop suppression.  
o 10V to 25V Single-Supply Operation  
o Differential Inputs Minimize Common-Mode Noise  
o Pin-Selectable Gain Reduces Component Count  
o Industry-Leading Integrated Click-and-Pop  
Suppression  
The MAX9713/MAX9714 feature high 76dB PSRR, low  
0.07% THD+N, and SNR in excess of 100dB. Short-cir-  
cuit and thermal-overload protection prevent the  
devices from being damaged during a fault condition.  
The MAX9713 is available in a 32-pin TQFN (5mm x  
5mm x 0.8mm) package. The MAX9714 is available in a  
32-pin TQFN (7mm x 7mm x 0.8mm) package. Both  
devices are specified over the extended -40°C to  
+85°C temperature range.  
o Low Quiescent Current (18mA)  
o Low-Power Shutdown Mode (0.2µA)  
o Short-Circuit and Thermal-Overload Protection  
o Available in Thermally Efficient, Space-Saving  
Packages:  
32-Pin TQFN (5mm x 5mm x 0.8mm)–MAX9713  
32-Pin TQFN (7mm x 7mm x 0.8mm)–MAX9714  
Applications  
High-End Notebook  
Audio  
Ordering Information  
LCD Monitors  
LCD TVs  
PIN-PACKAGE  
PART  
TEMP RANGE  
-40oC to +85oC  
-40oC to +85oC  
AMP  
Mono  
Stereo  
32 TQFN-EP*  
32 TQFN-EP*  
MAX9713ETJ  
MAX9714ETJ  
Hands-Free Car  
Phone Adaptors  
Desktop PCs  
LCD Projectors  
*EP = Exposed paddle.  
Block Diagrams  
0.47µF  
MAX9714  
INL+  
OUTL+  
OUTL-  
H-BRIDGE  
0.47µF  
MAX9713  
INL-  
0.47µF  
IN+  
OUT+  
OUT-  
H-BRIDGE  
0.47µF  
0.47µF  
0.47µF  
IN-  
INR+  
INR-  
OUTR+  
OUTR-  
H-BRIDGE  
Pin Configurations appear at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
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.  
1234567...18

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