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參數(shù)資料
| 型號(hào)： | TAS5146DKD |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | STEREO DIGITAL AMPLIFIER POWER STAGE |
| 中文描述： | 立體聲數(shù)字放大器功率級(jí) |
| 文件頁數(shù)： | 1/26頁 |
| 文件大小： | 583K |
| 代理商： | TAS5146DKD |
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TM
www.ti.com
FEATURES
2×100 W at 10% THD+N Into 4-
BTL
(1)
2×80 W at 10% THD+N Into 6-
BTL
2×65 W at 10% THD+N Into 8-
BTL
4×40 W at 10% THD+N Into 3-
SE
4×30 W at 10% THD+N Into 4-
SE
1×160 W at 10% THD+N Into 3-
PBTL
1×200 W at 10% THD+N Into 2-
PBTL
(1)
>100 dB SNR (A-Weighted)
<0.1% THD+N at 1 W
Two Thermally Enhanced Package Options:
– DKD (36-pin PSOP3)
– DDV (44-pin HTSSOP)
High-Efficiency Power Stage (>90%) With
140-m
Output MOSFETs
Power-On Reset for Protection on Power Up
Without Any Power-Supply Sequencing
Integrated Self-Protection Circuits Including
Undervoltage, Overtemperature, Overload,
Short Circuit
Error Reporting
EMI Compliant When Used With
Recommended System Design
Intelligent Gate Drive
APPLICATIONS
Mini/Micro Audio System
DVD Receiver
Home Theater
DESCRIPTION
The TAS5142 is a third-generation, high-perform-
ance, integrated stereo digital amplifier power stage
with an improved protection system. The TAS5142 is
capable of driving a 4-
bridge-tied load (BTL) at up
to 100 W per channel with low integrated noise at the
output, low THD+N performance, and low idle power
dissipation.
PVDD Supply Voltage V
0
10
20
30
40
50
60
70
80
90
100
110
120
0
4
8
12
16
20
24
28
32
P
O
8
4
T
C
= 75
°
C
THD+N @ 10%
6
G002
TAS5142
SLES126B–DECEMBER 2004–REVISED MAY 2005
STEREO DIGITAL AMPLIFIER POWER STAGE
deliver high-quality, high-efficiency audio amplification
with proven EMI compliance. This device requires two
power supplies, at 12 V for GVDD and VDD, and at
32 V for PVDD. The TAS5142 does not require
power-up sequencing due to internal power-on reset.
The efficiency of this digital amplifier is greater than
90% into 6
, which enables the use of smaller
power supplies and heatsinks.
The TAS5142 has an innovative protection system
integrated on-chip, safeguarding the device against a
wide range of fault conditions that could damage the
system. These safeguards are short-circuit protection,
overcurrent protection, undervoltage protection, and
overtemperature protection. The TAS5142 has a new
proprietary current-limiting circuit that reduces the
possibility of device shutdown during high-level music
transients. A new programmable overcurrent detector
allows the use of lower-cost inductors in the demodu-
lation output filter.
BTL OUTPUT POWER vs SUPPLY VOLTAGE
(1)It is not recommended to drive 200 W (total
power) into the DDV package continuously.
For multichannel systems that require two
channels to be driven at full power with the
DDV package option, it is recommended to
design the system so that the two channels
are in two separate devices.
A low-cost, high-fidelity audio system can be built
using a TI chipset, comprising a modulator (e.g.,
TAS5508) and the TAS5142. This system only re-
quires a simple passive LC demodulation filter to
PurePath Digital
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, PowerPad are trademarks of Texas Instruments.
All trademarks are the property of their respective owners.
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 2004–2005, Texas Instruments Incorporated
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TAS5152 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:STEREO DIGITAL AMPLIFIER POWER STAGE |
| TAS5152_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:STEREO DIGITAL AMPLIFIER POWER STAGE |
| TAS5152DKD | 功能描述:音頻放大器 Stereo 125W Powerstage RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5152DKD | 制造商:Texas Instruments 功能描述:Special Function IC |
| TAS5152DKDG4 | 功能描述:音頻放大器 Stereo 125W Powerstage RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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