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TPA6203A1

更新时间： 2024-11-19 22:35:07
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
19页 462K
描述
1.25-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER

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TPA6203A1 数据手册

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TPA6203A1  
www.ti.com  
SLOS364C–MARCH 2002–REVISED SEPTEMBER 2003  
1.25-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER  
APPLICATIONS  
FEATURES  
•
1.25 W Into 8 Ω From a 5-V Supply at  
THD = 1% (Typ)  
•
Designed for Wireless or Cellular Handsets  
and PDAs  
•
•
•
Low Supply Current: 1.7 mA typ  
Shutdown Control <1 µA  
DESCRIPTION  
The TPA6203A1 is a 1.25-W mono fully differential  
amplifier designed to drive a speaker with at least 8-Ω  
impedance while consuming less than 37 mm2 total  
printed-circuit board (PCB) area in most applications.  
This device operates from 2.5 V to 5.5 V, drawing only  
1.7 mA of quiescent supply current. The TPA6203A1 is  
available in the space-saving 2 mm x 2 mm MicroStar  
Junior™ BGA package.  
Only Five External Components  
– Improved PSRR (90 dB) and Wide Supply  
Voltage (2.5 V to 5.5 V) for Direct Battery  
Operation  
– Fully Differential Design Reduces RF  
Rectification  
– Improved CMRR Eliminates Two Input  
Coupling Capacitors  
– C(BYPASS) Is Optional Due to Fully Differential  
Design and High PSRR  
– ZQV (Pb - free) and GQV Options  
Features like 85-dB PSRR from 90 Hz to 5 kHz,  
improved RF-rectification immunity, and small PCB  
area makes the TPA6203A1 ideal for wireless  
handsets. A fast start-up time of 4 µs with minimal pop  
makes the TPA6203A1 ideal for PDA applications.  
•
Avaliable in a 2 mm x 2 mm MicroStar  
Junior™ BGA Package  
– ZQV (Pb - free) and GQV Options  
APPLICATION CIRCUIT  
Actual Solution Size  
V
DD  
A3  
R
F
To Battery  
R
F
C
s
R
I
-
IN-  
C3  
V
_
+
O+  
B3  
A1  
In From  
DAC  
R
I
V
C
S
O-  
+
C2 IN+  
(1)  
C
B
5,25 mm  
R
F
GND B2  
R
I
B1  
C1  
SHUTDOWN  
(1)  
Bias  
Circuitry  
R
I
C
(BYPASS)  
R
F
(1)  
C
is optional  
(BYPASS)  
6,9 mm  
MicroStar Junior is a trademark of Texas Instruments.  
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.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily in-  
cludetestingofallparameters.  
Copyright © 2002–2003, Texas Instruments Incorporated  
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TPA6203A1 替代型号

型号 品牌 替代类型 描述 数据表
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