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TAS5612A

更新时间： 2024-09-16 06:15:31
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德州仪器 - TI 输入元件
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26页 1708K
描述
125W STEREO / 250W MONO PurePath™ HD DIGITAL-INPUT POWER STAGE

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TAS5612A 数据手册

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TAS5612A  
www.ti.com  
SLAS710 –JUNE 2010  
125W STEREO / 250W MONO PurePath™ HD DIGITAL-INPUT POWER STAGE  
Check for Samples: TAS5612A  
1
FEATURES  
APPLICATIONS  
•
•
•
•
•
Home Theater Systems  
AV Receivers  
DVD/Blu-ray™ Disc Receivers  
Mini Combo Systems  
Active Speakers and Subwoofers  
23  
•
PurePath™ HD Enabled Integrated Feedback  
Provides:  
–
Signal Bandwidth up to 80kHz for High  
Frequency Content From HD Sources  
–
–
–
Ultralow 0.03% THD at 1W into 4Ω  
Ultralow 0.01% THD at 1W into 8Ω  
DESCRIPTION  
Flat THD at all Frequencies for Natural  
Sound  
The TAS5612A is a high performance digital input  
Class  
D amplifier with integrated closed loop  
–
–
–
80dB PSRR (BTL, No Input Signal)  
>100dB (A weighted) SNR  
feedback technology (known as PurePath™ HD) with  
the ability to drive up to 125W Stereo into 4 to 8 Ω  
Speakers from a single 32.5V supply.  
(1)  
Click and Pop Free Startup  
•
•
Pin compatible with TAS5631, TAS5616 and  
TAS5614  
PurePath™ HD technology enables traditional  
AB-Amplifier performance (<0.03% THD) levels while  
providing the power efficiency of traditional class D  
amplifiers.  
Multiple Configurations Possible on the Same  
PCB With Stuffing Options:  
–
–
–
Mono Parallel Bridge Tied Load (PBTL)  
Stereo Bridge Tied Load (BTL)  
Unlike traditional Class D amplifiers, the distortion  
curve only increases once the output levels move into  
clipping. PurePath™ HD Power PAD™  
2.1 Single Ended Stereo Pair and Bridge  
Tied Load Subwoofer  
PurePath™ HD technology enables lower idle losses  
making the device even more efficient.  
•
•
Total Output Power at 10%THD+N  
TOTAL HARMONIC DISTORTION+NOISE  
VS  
OUTPUT POWER  
–
–
250W in Mono PBTL Configuration  
125W per Channel in Stereo BTL  
Configuration  
10  
4Ohm (6kHz)  
4Ohm (1kHz)  
Total Output Power in BTL configuration at  
1%THD+N  
1
–
–
–
–
130W Stereo into 3Ω  
105W Stereo into 4Ω  
70W Stereo into 6Ω  
55W Stereo into 8Ω  
0,1  
0,01  
•
•
>90% Efficient Power Stage With 60-mΩ  
Output MOSFETs  
TC = 75 C  
CONFIG = BTL  
0,001  
0,01  
Self-Protection Design (Including  
Undervoltage, Overtemperature, Clipping, and  
Short-Circuit Protection) With Error Reporting  
1
100  
PO - Output Power - W  
•
•
EMI Compliant When Used With  
Recommended System Design  
(1) Achievable output power levels are dependent on the thermal  
configuration of the target application. A high performance  
thermal interface material between the package exposed  
heatslug and the heat sink should be used to achieve high  
output power levels.  
Two Thermally Enhanced Package Options:  
–
–
PHD (64-Pin QFP)  
DKD (44-Pin PSOP3)  
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
PurePath, Power PAD are trademarks of Texas Instruments.  
All other trademarks are the property of their respective owners.  
UNLESS OTHERWISE NOTED this document contains  
PRODUCTION DATA information 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 © 2010, Texas Instruments Incorporated  
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TAS5612A 替代型号

型号 品牌 替代类型 描述 数据表
TAS5612LA TI

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