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TPA6043A4

更新时间： 2024-11-25 03:58:47
品牌 Logo 应用领域
德州仪器 - TI 稳压器放大器功率放大器驱动
页数 文件大小 规格书
30页 1067K
描述
2-W STEREO AUDIO POWER AMPLIFIER WITH DirectPath⑩ STEREO HEADPHONE DRIVE AND REGULATOR

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TPA6043A4 数据手册

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TPA6043A4  
www.ti.com  
SLOS543–AUGUST 2007  
2-W STEREO AUDIO POWER AMPLIFIER  
WITH DirectPath™ STEREO HEADPHONE DRIVE AND REGULATOR  
1
FEATURES  
DESCRIPTION  
23  
•
Microsoft™ Windows Vista™ Compliant  
•
•
Fully Differential Architecture and High PSRR  
Provide Excellent RF Rectification Immunity  
The TPA6043A4 is a stereo audio power amplifier  
and DirectPath™ headphone amplifier in a thermally  
enhanced, space-saving, 32-pin QFN package. The  
speaker amplifier is capable of driving 2 W per  
channel continuously into 4-Ω loads at 5 V. The  
headphone amplifier achieves a minimum of 85 mW  
at 1% THD+N from a 5-V supply. A built-in internal  
4-step gain control for the speaker amplifier and a  
fixed –1.5 V/V gain for the headphone amplifier  
minimizes external components needed.  
2-W, 10% THD+N Into 4-Ω Speakers and  
85-mW, 1% THD+N Into 16-Ω Headphones  
From 5-V Supply  
•
•
DirectPath™ Headphone Amplifier Eliminates  
(1)  
Output Capacitors  
Internal 4-Step Speaker Gain Control: 6, 10,  
15.6, 21.6 dB and Fixed –1.5-V/V Headphone  
Independent shutdown control and dedicated inputs  
for the speaker and headphone allow the TPA6043A4  
to simultaneously drive both headphones and internal  
speakers. Differential inputs to the speaker amplifiers  
offer superior power-supply and common-mode noise  
rejection.  
•
•
3.3-V Low Dropout Regulator for CODEC  
Independent Shutdown Controls for Speaker,  
Headphone Amplifier, and Low Dropout  
Regulator (LDO)  
•
Output Short-Circuit and Thermal Protection  
APPLICATIONS  
•
Notebook Computers  
•
Portable DVD  
(1) US Patent Number 5289137  
SIMPLIFIED APPLICATION CIRCUIT  
TPA6043A4  
CODEC  
ROUT+  
ROUT–  
SPKR_RIN+  
SPKR_RIN–  
SPKR  
HPR  
HPL  
LOUT+  
LOUT–  
SPKR_LIN+  
SPKR_LIN–  
SPKL  
VDD  
SPVDD  
SPGND  
4.5 V – 5.5 V  
BYPASS  
GAIN0  
GAIN1  
Gain  
Control  
HP_EN  
Shutdown  
Control  
SPKR_EN  
OUTL  
OUTR  
HP_INR  
SGND  
HPVSS  
CPVSS  
HP_INL  
HPVDD  
CPVDD  
VDD  
3 V – 5.5 V  
CPGND  
C1P  
C1N  
4.5 V – 5.5 V  
Regulator Enable  
REG_EN  
REG_OUT  
3.3 V (To CODEC)  
1
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.  
2
3
DirectPath, PowerPAD are trademarks of Texas Instruments.  
Microsoft, Windows Vista are trademarks of Microsoft Corporation.  
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 © 2007, Texas Instruments Incorporated  
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TPA6043A4 替代型号

型号 品牌 替代类型 描述 数据表
TPA6017A2 TI

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