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MAX9779 PDF预览

MAX9779

更新时间: 2024-11-25 04:41:31
品牌 Logo 应用领域
美信 - MAXIM 放大器功率放大器
页数 文件大小 规格书
19页 540K
描述
2.6W Stereo Audio Power Amplifier and DirectDrive Headphone Amplifier

MAX9779 数据手册

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19-3766; Rev 0; 7/05  
2.6W Stereo Audio Power Amplifier and  
DirectDrive Headphone Amplifier  
General Description  
Features  
The MAX9779 combines a stereo, 2.6W audio power  
amplifier and stereo DirectDrive™ 110mW headphone  
amplifier in a single device. The headphone amplifier  
uses Maxim’s patented DirectDrive architecture that pro-  
duces a ground-referenced output from a single supply,  
eliminating the need for large DC-blocking capacitors,  
saving cost, space, and component height. A high 90dB  
PSRR and low 0.01% THD+N ensures clean, low-distor-  
tion amplification of the audio signal through the Class  
AB speaker amplifiers.  
No DC-Blocking Capacitors Required—Provides  
Industry’s Most Compact Notebook Audio  
Solution  
PC2001 Compliant  
5V Single-Supply Operation  
Class AB 2.6W Stereo BTL Speaker Amplifiers  
110mW DirectDrive Headphone Amplifiers  
High 90dB PSRR  
The MAX9779 features a single-supply voltage, a shut-  
down mode, logic-selectable gain, and a headphone  
sense input. Industry-leading click-and-pop suppres-  
sion eliminates audible transients during power and  
shutdown cycles.  
Low-Power Shutdown Mode  
Industry-Leading Click-and-Pop Suppression  
Low 0.01% THD+N at 1kHz  
The MAX9779 is offered in a space-saving, thermally effi-  
cient 28-pin thin QFN (5mm x 5mm x 0.8mm) package.  
The device has thermal-overload and output short-circuit  
protection, and is specified over the extended -40°C to  
+85°C temperature range.  
Short-Circuit and Thermal-Overload Protection  
Selectable Gain Settings (15dB, 16.5dB, 18dB,  
and 19.5dB)  
8kV ꢀSD-Protected Headphone Driver Outputs  
Available in Space-Saving, Thermally ꢀfficient  
Package  
Applications  
Flat-Panel TVs  
28-Pin Thin QFN (5mm x 5mm x 0.8mm)  
Notebook PCs  
Tablet PCs  
Multimedia Monitors  
Portable DVD Players LCD Projectors  
Simplified Block Diagram  
Ordering Information  
PART  
TꢀMP RANGꢀ  
PIN-PACKAGꢀ  
MAX9779ETI+  
-40°C to +85°C  
28 Thin QFN-EP*  
AB  
+Denotes lead-free package.  
*EP = Exposed paddle.  
AB  
MAX9779  
GAIN  
Pin Configuration appears 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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