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MAX9741ETN PDF预览

MAX9741ETN

更新时间: 2024-01-22 06:51:30
品牌 Logo 应用领域
美信 - MAXIM 放大器
页数 文件大小 规格书
1页 44K
描述
12W+12W, Filterless, Spread-Spectrum, Stereo, Class D Amplifier

MAX9741ETN 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:HVQCCN,
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.33.00.01Factory Lead Time:6 weeks
风险等级:5.71标称带宽:22 kHz
商用集成电路类型:AUDIO AMPLIFIER增益:29.6 dB
JESD-30 代码:S-XQCC-N56长度:8 mm
湿度敏感等级:3信道数量:2
功能数量:1端子数量:56
最高工作温度:85 °C最低工作温度:-40 °C
标称输出功率:12 W封装主体材料:UNSPECIFIED
封装代码:HVQCCN封装形状:SQUARE
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):NOT SPECIFIED
座面最大高度:0.8 mm最大供电电压 (Vsup):25 V
最小供电电压 (Vsup):10 V表面贴装:YES
技术:BICMOS温度等级:INDUSTRIAL
端子形式:NO LEAD端子节距:0.5 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:8 mmBase Number Matches:1

MAX9741ETN 数据手册

  
XX-XXXX; Rev 0; 10/05  
12W+12W, Filterless, Spread-Spectrum,  
Stereo, Class D Amplifier  
General Description  
Features  
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 8loads.  
Proprietary and patent-protected modulation and switch-  
ing schemes render the traditional Class D EMI suppres-  
sion output filter unnecessary.  
Filterless Class D Amplifier  
Unique Spread-Spectrum Mode Offers 5dB  
Emissions Improvement Over Conventional  
Methods  
Up to 88% Efficient into 16Ω  
12W+12W Continuous Output Power into 8Ω  
15W+15W Continous Output Power into 16Ω  
Low 0.07% THD+N  
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.  
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)  
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.  
Low-Power Shutdown Mode (0.2µA)  
Short-Circuit and Thermal-Overload Protection  
Applications  
Available in Thermally Efficient, Space-Saving  
56-Pin TQFN (8mm x 8mm x 0.8mm) Package  
LCD TVs  
Hands-Free Car  
Phone Adaptors  
LCD Monitors  
Desktop PCs  
LCD Projectors  
Ordering Information  
Automotive  
PKG  
CODE  
PART  
TEMP RANGE PIN-PACKAGE  
56 TQFN-EP*  
MAX9741ETN+ -40°C to +85°C  
T5688-3  
+Denotes lead-free package.  
*EP = Exposed paddle.  
Simplified Block Diagram  
INR+  
INR-  
INL+  
INL-  
DIFFERENTIAL AUDIO  
INPUTS ELIMINATE  
NOISE PICKUP  
OUTR+  
FILTERLESS  
CLASS D  
GAIN  
CONTROL  
OUTR-  
OUTL+  
OUTPUT  
PROTECTION  
AMPLIFIERS  
CLASS D  
MODULATOR  
DRIVE 2 X 13W  
INTO 8LOADS  
G1  
G2  
OUTL-  
PROGRAMMABLE  
SWITCHING  
2
FS1, FS2  
MAX9741  
FREQUENCY  
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.  

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