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TPA6211A1_07

更新时间： 2024-11-18 03:58:47
品牌 Logo 应用领域
德州仪器 - TI 放大器功率放大器
页数 文件大小 规格书
29页 1084K
描述
3.1-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER

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TPA6211A1_07 数据手册

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TPA6211A1  
www.ti.com  
SLOS367B–AUGUST 2003–REVISED AUGUST 2004  
3.1-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER  
FEATURES  
APPLICATIONS  
•
Ideal for Wireless Handsets, PDAs, and  
Notebook Computers  
•
Designed for Wireless or Cellular Handsets  
and PDAs  
•
3.1 W Into 3Ω From a 5-V Supply at  
THD = 10% (Typ)  
DESCRIPTION  
The TPA6211A1 is a 3.1-W mono fully-differential  
amplifier designed to drive a speaker with at least  
3-Ω impedance while consuming only 20 mm2 total  
printed-circuit board (PCB) area in most applications.  
The device operates from 2.5 V to 5.5 V, drawing  
•
•
•
•
Low Supply Current: 4 mA Typ at 5 V  
Shutdown Current: 0.01 µA Typ  
Fast Startup With Minimal Pop  
Only Three External Components  
only  
4 mA of quiescent supply current. The  
– Improved PSRR (-80 dB) and Wide Supply  
Voltage (2.5 V to 5.5 V) for Direct Battery  
Operation  
TPA6211A1 is available in the space-saving  
3-mm × 3-mm QFN (DRB) and the 8-pin MSOP  
(DGN) PowerPAD™ packages.  
– Fully Differential Design Reduces RF  
Rectification  
Features like -80 dB supply voltage rejection from  
20 Hz to 2 kHz, improved RF rectification immunity,  
small PCB area, and a fast startup with minimal pop  
makes the TPA6211A1 ideal for PDA/smart phone  
applications.  
– -63 dB CMRR Eliminates Two Input  
Coupling Capacitors  
APPLICATION CIRCUIT  
8-PIN QFN (DRB) PACKAGE  
(TOP VIEW)  
V
DD  
6
1
2
3
4
8
7
6
5
To Battery  
SHUTDOWN  
BYPASS  
IN+  
V
O-  
GND  
C
s
40 kΩ  
V
DD  
R
R
I
4
3
-
IN-  
_
+
V
5
8
O+  
IN-  
V
O+  
In From  
DAC  
V
O-  
I
+
IN+  
DGN PACKAGE  
(TOP VIEW)  
40 kΩ  
7
GND  
1
2
SHUTDOWN  
SHUTDOWN  
BYPASS  
IN+  
V
1
2
3
4
8
7
6
5
Bias  
Circuitry  
O-  
GND  
V
DD  
V
O+  
100 kΩ  
(1)  
(BYPASS)  
C
IN-  
(1)  
C
is optional.  
(BYPASS)  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PowerPAD is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2003–2004, Texas Instruments Incorporated  
1234567...29

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