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TPA6203A1GQV

更新时间： 2024-11-19 23:37:15
品牌 Logo 应用领域
其他 - ETC 商用集成电路音频放大器
页数 文件大小 规格书
19页 216K
描述
AUDIO AMPLIFIER|SINGLE|CMOS|BGA|8PIN|PLASTIC

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TPA6203A1GQV 数据手册

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www.ti.com  
TPA6203A1  
SLOS364 – MARCH 2002  
1.25-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER  
FEATURES  
APPLICATIONS  
D
Designed for Wireless or Cellular Handsets  
and PDAs  
D
1.25 W Into 8 Ω From a 5-V Supply at  
THD = 1% (Typ)  
DESCRIPTION  
D
D
D
Low Supply Current: 1.7 mA typ  
Shutdown Control <1 µA  
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 mm 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.  
2
(1)  
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  
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.  
– Improved CMRR Eliminates Two Input  
Coupling Capacitors  
– C  
Is Optional Due to Fully  
(BYPASS)  
Differential Design and High PSRR  
APPLICATION CIRCUIT  
Actual Solution Size  
V
DD  
A3  
R
F
To Battery  
R
F
C
s
R
I
C3  
–
+
IN–  
_
+
V
O+  
B3  
A1  
In From  
DAC  
V
R
I
C
S
O–  
C2 IN+  
(1)  
C
B
5,25 mm  
R
F
GND B2  
R
I
B1  
C1  
SHUTDOWN  
Bias  
Circuitry  
R
I
(1)  
C
(BYPASS)  
R
F
6,9 mm  
(1)  
C
is optional  
(BYPASS)  
Pleasebe 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.  
MicroStarJunior is a trademark of TexasInstruments.  
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 include testing of all parameters.  
Copyright 2002, Texas Instruments Incorporated  
1234567...19

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