Datasheet 搜索 > 音频放大器 > TI（德州仪器） > TAS5142DKDR 数据手册 > TAS5142DKDR 数据手册 1/34 页
器件3D模型￥ 72.165
TAS5142DKDR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
音频放大器
封装:
SSOP-36
描述:
立体声数字放大器功率级 STEREO DIGITAL AMPLIFIER POWER STAGE
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
原理图在P6P7
封装尺寸在P23P25P26P28
焊盘布局在P29
型号编码规则在P4
标记信息在P23
封装信息在P23P24P25P26
技术参数、封装参数在P4P8P9P10
应用领域在P1P22P34
电气规格在P10P20P21P22
导航目录
TAS5142DKDR数据手册
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TM
www.ti.com
FEATURES
APPLICATIONS
DESCRIPTION
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
− Output Power − W
8 Ω
4 Ω
T
C
= 75°C
THD+N @ 10%
6 Ω
G002
TAS5142
SLES126B – DECEMBER 2004 – REVISED MAY 2005
STEREO DIGITAL AMPLIFIER POWER STAGE
requires a simple passive LC demodulation filter to
deliver high-quality, high-efficiency audio amplification
• 2×100 W at 10% THD+N Into 4- Ω BTL
(1)
with proven EMI compliance. This device requires two
• 2×80 W at 10% THD+N Into 6- Ω BTL
power supplies, at 12 V for GVDD and VDD, and at
32 V for PVDD. The TAS5142 does not require
• 2×65 W at 10% THD+N Into 8- Ω BTL
power-up sequencing due to internal power-on reset.
• 4×40 W at 10% THD+N Into 3- Ω SE
The efficiency of this digital amplifier is greater than
• 4×30 W at 10% THD+N Into 4- Ω SE
90% into 6 Ω , which enables the use of smaller
• 1×160 W at 10% THD+N Into 3- Ω PBTL
power supplies and heatsinks.
• 1×200 W at 10% THD+N Into 2- Ω PBTL
(1)
The TAS5142 has an innovative protection system
integrated on-chip, safeguarding the device against a
• >100 dB SNR (A-Weighted)
wide range of fault conditions that could damage the
• <0.1% THD+N at 1 W
system. These safeguards are short-circuit protection,
• Two Thermally Enhanced Package Options:
overcurrent protection, undervoltage protection, and
– DKD (36-pin PSOP3)
overtemperature protection. The TAS5142 has a new
proprietary current-limiting circuit that reduces the
– DDV (44-pin HTSSOP)
possibility of device shutdown during high-level music
• High-Efficiency Power Stage (>90%) With
transients. A new programmable overcurrent detector
140-m Ω Output MOSFETs
allows the use of lower-cost inductors in the
• Power-On Reset for Protection on Power Up
demodulation output filter.
Without Any Power-Supply Sequencing
BTL OUTPUT POWER vs SUPPLY VOLTAGE
• Integrated Self-Protection Circuits Including
Undervoltage, Overtemperature, Overload,
Short Circuit
• Error Reporting
• EMI Compliant When Used With
Recommended System Design
• Intelligent Gate Drive
• Mini/Micro Audio System
• DVD Receiver
• Home Theater
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- Ω bridge-tied load (BTL) at up
(1) It is not recommended to drive 200 W (total power) into the
to 100 W per channel with low integrated noise at the
DDV package continuously. For multichannel systems that
output, low THD+N performance, and low idle power
require two channels to be driven at full power with the
dissipation.
DDV package option, it is recommended to design the
system so that the two channels are in two separate
A low-cost, high-fidelity audio system can be built
devices.
using a TI chipset, comprising a modulator (e.g.,
PurePath Digital™
TAS5508) and the TAS5142. This system only
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.
Copyright © 2004–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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