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TAS5706PAP 参数 Datasheet PDF下载

TAS5706PAP图片预览
型号: TAS5706PAP
PDF下载: 下载PDF文件 查看货源
内容描述: 具有EQ和DRC的20W立体声数字音频功率放大器 [20-W Stereo Digital Audio Power Amplifier with EQ and DRC]
分类和应用: 消费电路商用集成电路音频放大器视频放大器功率放大器
文件页数/大小: 62 页 / 1277 K
品牌: TI [ TEXAS INSTRUMENTS ]
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www.ti.com
SLOS550A – DECEMBER 2007 – REVISED DECEMBER 2007
20-W Stereo Digital Audio Power Amplifier with EQ and DRC
1
FEATURES
Audio Input/Output
– 20-W into an 8-Ω Load From an 18-V Supply
– Two Serial Audio Inputs (Four Audio
Channels)
– Supports Multiple Output Configurations:
– 2-Ch Bridged Outputs (20 W
×
2)
– 4-Ch Single-Ended Outputs (10 W
×
4)
– 2-Ch Single-Ended + 1-Ch Bridged (2.1)
(10 W
×
2 + 20 W)
Closed Loop Power Stage Architecture
– Improved PSRR Reduces Power Supply
Performance Requirements
– Higher Damping Factor Provides for
Tighter, More Accurate Sound With
Improved Bass Response
– Constant Output Power Over Variation in
Supply
Wide PVCC Range From (10 V to 26 V)
– No Separate Supply Required for Gate
Drive
Supports 32-kHz–192-kHz Sample Rates
(LJ/RJ/I
2
S)
Headphone PWM Outputs
Subwoofer PWM Outputs
AM Interference Avoidance Support
Audio/PWM Processing
– Independent Channel Volume Controls With
24-dB to –100-dB Range—Soft Mute (50%
Duty Cycle)
– Programmable Dynamic Range Control
– 16 Programmable Biquads for Speaker
Equalization
– Adaptive Biquad Coefficients for EQ and
DRC Filters
23
– Programmable Input and Output Mixers
– Loudness Compensation for Subwoofer
– Automatic Sample-Rate Detection and
Coefficient Banking
General Features
– Serial Control Interface Operational Without
MCLK
– Factory-Trimmed Internal Oscillator Avoids
the Need for External Crystal
– Surface Mount, 64-Terminal, 10-mm
×
10-mm HTQFP Package
– Thermal and Short-Circuit Protection
DESCRIPTION
The TAS5706 is a 20-W, efficient, digital audio power
amplifier for driving stereo bridged-tied speakers. Two
serial data inputs allow processing of up to four
discrete audio channels and seamless integration to
most digital audio processors and MPEG decoders,
accepting a wide range of input data and clock rates.
A fully programmable data path allows these
channels to be routed to the internal speaker drivers
or output via the subwoofer or headphone PWM
outputs.
The TAS5706 is a slave-only device receiving all
clocks from external sources. The TAS5706 operates
at a 384-kHz switching rate for 32-, 48-, 96-, and
192-kHz data, and at a 352.8 kHz switching rate for
44.1-, 88.2-, and 176.4-kHz data. The 8×
oversampling combined with the fourth-order noise
shaper provides a flat noise floor and excellent
dynamic range from 20 Hz to 20 kHz.
1
2
3
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 is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
Copyright © 2007, Texas Instruments Incorporated
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.