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TAS5121

更新时间： 2024-11-05 22:42:27
品牌 Logo 应用领域
德州仪器 - TI 放大器
页数 文件大小 规格书
17页 321K
描述
DIGITAL AMPLIFIER POWER STAGE

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TAS5121 数据手册

 浏览型号TAS5121的Datasheet PDF文件第2页浏览型号TAS5121的Datasheet PDF文件第3页浏览型号TAS5121的Datasheet PDF文件第4页浏览型号TAS5121的Datasheet PDF文件第5页浏览型号TAS5121的Datasheet PDF文件第6页浏览型号TAS5121的Datasheet PDF文件第7页 
www.ti.com  
ꢀꢁ ꢂꢃ ꢄꢅ ꢄ  
SLES086A − NOVEMBER 2003 − REVISED MARCH 2004  
TM  
ꢆ
ꢇ
ꢈ
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ꢀ
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ꢁ
ꢊ
ꢋ
ꢉ
ꢇ
ꢌ
ꢇ
ꢍ
ꢎ
ꢋ
ꢏ
ꢐ
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ꢈ
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FEATURES  
APPLICATIONS  
D
D
D
D
DVD Receiver  
Home Theatre  
Mini/Micro Component Systems  
Internet Music Appliance  
D
D
100-W RMS Power (BTL) Into 4 Ω With Less  
Than 10% THD+N  
80-W RMS Power (BTL) Into 4 Ω With Less  
Than 0.2% THD+N  
DESCRIPTION  
The TAS5121 is a high-performance digital amplifier  
power stage designed to drive a 4-Ω speaker up to 100 W.  
The device incorporates PurePath Digitaltechnology  
and can be used with a TI audio PWM processor and a  
simple passive demodulation filter to deliver high-quality,  
high-efficiency digital audio amplification.  
D
D
0.05% THD+N at 1 W Into 4 Ω  
Power Stage Efficiency Greater Than 90%  
Into 4 Ω Load  
D
D
D
D
Self-Protecting Design  
36-Pin PSOP3 Package  
3.3-V Digital Interface  
The efficiency of this digital amplifier can be greater than  
90%, depending on the system design. Overcurrent  
protection, overtemperature protection, and undervoltage  
protection are built into the TAS5121, safeguarding the  
device and speakers against fault conditions that could  
damage the system.  
EMI Compliant When Used With  
Recommended System Design  
TOTAL HARMONIC DISTORTION + NOISE  
UNCLIPPED OUTPUT POWER  
vs  
vs  
POWER  
H-BRIDGE VOLTAGE  
10  
90  
80  
R
= 4 Ω  
= 75°C  
L
T
C
Gain = 3 dB  
70  
4 Ω  
60  
1
6 Ω  
50  
40  
30  
0.1  
8 Ω  
20  
10  
0
0.01  
0
4
8
12  
16  
20  
24  
28  
32  
0.1  
1
10  
100  
P − Power − W  
PVDD_X − H-Bridge Voltage − V  
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.  
PurePath Digital and PowerPAD are trademarks of Texas Instruments.  
Other trademarks are the property of their respective owners.  
ꢋꢎ ꢏ ꢆꢑ ꢒ ꢀꢇ ꢏꢓ ꢆ ꢁꢀꢁ ꢔꢕ ꢖꢗ ꢘ ꢙꢚ ꢛꢔꢗꢕ ꢔꢜ ꢝꢞ ꢘ ꢘ ꢟꢕꢛ ꢚꢜ ꢗꢖ ꢠꢞꢡ ꢢꢔꢝ ꢚꢛꢔ ꢗꢕ ꢣꢚ ꢛꢟꢤ ꢋꢘ ꢗꢣꢞ ꢝꢛꢜ  
ꢝ ꢗꢕ ꢖꢗꢘ ꢙ ꢛꢗ ꢜ ꢠꢟ ꢝ ꢔ ꢖꢔ ꢝ ꢚ ꢛꢔ ꢗꢕꢜ ꢠ ꢟꢘ ꢛꢥꢟ ꢛꢟ ꢘ ꢙꢜ ꢗꢖ ꢀꢟꢦ ꢚꢜ ꢇꢕꢜ ꢛꢘ ꢞꢙ ꢟꢕꢛ ꢜ ꢜꢛ ꢚꢕꢣ ꢚꢘ ꢣ ꢧ ꢚꢘ ꢘ ꢚ ꢕꢛꢨꢤ  
ꢋꢘ ꢗ ꢣꢞꢝ ꢛ ꢔꢗ ꢕ ꢠꢘ ꢗ ꢝ ꢟ ꢜ ꢜ ꢔꢕ ꢩ ꢣꢗ ꢟ ꢜ ꢕꢗꢛ ꢕꢟ ꢝꢟ ꢜꢜ ꢚꢘ ꢔꢢ ꢨ ꢔꢕꢝ ꢢꢞꢣ ꢟ ꢛꢟ ꢜꢛꢔ ꢕꢩ ꢗꢖ ꢚꢢ ꢢ ꢠꢚ ꢘ ꢚꢙ ꢟꢛꢟ ꢘ ꢜꢤ  
Copyright 2004, Texas Instruments Incorporated  
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