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MAX9787 PDF预览

MAX9787

更新时间: 2024-11-09 11:14:11
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
15页 235K
描述
2.2W Stereo Audio Power Amplifier with Analog Volume Control

MAX9787 数据手册

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19-3882; Rev 0; 10/05  
2.2W Stereo Audio Power Amplifier  
with Analog Volume Control  
General Description  
Features  
Class AB, 2.2W, Stereo BTL Speaker Amplifiers  
Analog Volume Control  
The MAX9787 combines a stereo, 2.2W audio power  
amplifier with an analog volume control in a single device.  
A high 90dB PSRR and low 0.01% THD+N ensures clean,  
low-distortion amplification of the audio signal.  
BEEP Input with Glitch Filter  
5V Single-Supply Operation  
The analog volume control can be driven with a poten-  
tiometer, an RC-filtered PWM source, or a DAC output.  
A BEEP input allows the addition of alert signals from  
the controller to the audio path.  
High 90dB PSRR  
Low-Power Shutdown Mode  
Industry-Leading Click-and-Pop Suppression  
Low 0.01% THD+N at 1kHz  
Industry-leading, click-and-pop suppression eliminates  
audible transients during power and shutdown cycles.  
Other features include single-supply voltage, a shut-  
down mode, logic-selectable gain, thermal-overload,  
and output short-circuit protection.  
Short-Circuit and Thermal Protection  
Selectable-Gain Settings  
Space-Saving 28-Pin TQFN (5mm x 5mm x 0.8mm)  
The MAX9787 is offered in a space-saving, thermally  
efficient, 28-pin, thin QFN (5mm x 5mm x 0.8mm) pack-  
age, and is specified over the extended -40°C to +85°C  
temperature range.  
Applications  
Ordering Information  
Portable DVD Players  
Notebook PCs  
Flat-Panel TVs  
Tablet PCs  
PART  
PIN-PACKAGE  
PKG CODE  
LCD Projectors  
MAX9787ETI+  
28 TQFN-EP*  
T2855N-1  
Multimedia Monitors  
Note: This device is specified for -40°C to +85°C operation.  
+Denotes lead-free package.  
*EP = Exposed paddle.  
PC Displays  
Typical Operating Circuit  
Pin Configuration  
TOP VIEW  
+5V  
21 20  
19 18  
17 16  
15  
SHDN 22  
GAIN2 23  
GAIN1 24  
14 N.C.  
13 N.C.  
Σ
12  
V
SS  
MAX9787  
V
25  
11 CPV  
10 C1N  
DD  
SS  
Σ
GND 26  
INR 27  
VOL 28  
9
8
CPGND  
C1P  
BEEP  
*EP  
MAX9787  
VOLUME  
+
1
2
3
4
5
6
7
THIN QFN  
*EXPOSED PAD.  
________________________________________________________________ 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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