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TPA122 PDF预览

TPA122

更新时间： 2024-11-07 22:42:03
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
25页 440K
描述
150-mW STEREO AUDIO POWER AMPLIFIER

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TPA122 数据手册

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TPA122  
150-mW STEREO AUDIO POWER AMPLIFIER  
SLOS211C – AUGUST1998 – REVISED MARCH 2000  
D OR DGN PACKAGE  
(TOP VIEW)  
150 mW Stereo Output  
PC Power Supply Compatible  
– Fully Specified for 3.3 V and 5 V  
Operation  
V 1  
O
V
DD  
1
2
3
4
8
7
6
5
IN–  
BYPASS  
GND  
V 2  
O
– Operation to 2.5 V  
IN2–  
Pop Reduction Circuitry  
SHUTDOWN  
Internal Mid-Rail Generation  
Thermal and Short-Circuit Protection  
Surface-Mount Packaging  
– PowerPAD MSOP  
– SOIC  
Pin Compatible With LM4880 and LM4881  
(SOIC)  
description  
The TPA122 is a stereo audio power amplifier packaged in either an 8-pin SOIC, or an 8-pin PowerPAD MSOP  
package capable of delivering 150 mW of continuous RMS power per channel into 8-Ω loads. Amplifier gain  
isexternallyconfiguredbymeansoftworesistorsperinputchannelanddoesnotrequireexternalcompensation  
for settings of 1 to 10.  
THD+N when driving an 8-Ω load from 5 V is 0.1% at 1 kHz, and less than 2% across the audio band of 20 Hz  
to 20 kHz. For 32-Ω loads, the THD+N is reduced to less than 0.06% at 1 kHz, and is less than 1% across the  
audiobandof20Hzto20kHz. For10-kΩ loads, theTHD+Nperformanceis0.01%at1kHz, andlessthan0.02%  
across the audio band of 20 Hz to 20 kHz.  
typical application circuit  
320 kΩ  
320 kΩ  
V
8
1
R
DD  
F
V
DD  
Audio  
Input  
C
S
V
/2  
DD  
R
I
IN1–  
2
3
V
1
O
O
–
+
C
I
C
C
BYPASS  
IN2–  
C
Audio  
Input  
B
R
I
6
5
V
2
7
4
–
+
C
I
C
C
From Shutdown  
Control Circuit  
SHUTDOWN  
Bias  
Control  
R
F
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.  
Copyright 2000, Texas Instruments Incorporated  
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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...25

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TPA122 替代型号

型号 品牌 替代类型 描述 数据表
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