Datasheet

Table Of Contents
TAS5711
www.ti.com
SLOS600A DECEMBER 2009REVISED AUGUST 2010
20-W DIGITAL AUDIO-POWER AMPLIFIER WITH EQ, DRC, AND 2.1 MODE
Check for Samples: TAS5711
1
FEATURES
2
Audio Input/Output
Benefits
20-W Into an 8- Load From an 18-V Supply Up to 90% Efficient
Wide PVDD Range, From 8 V to 26 V AD and BD Filter Mode Support
Efficient Class-D Operation Eliminates SNR: 106 dB, A-Weighted
Need for Heatsinks
EQ: Speaker Equalization Improves Audio
One Serial Audio Input (Two Audio Performance
Channels)
DRC: Dynamic Range Compression. Can
2.1 Mode (2 SE + 1 BTL) Be Used As Power Limiter. Enables
Speaker Protection, Easy Listening,
2.0 Mode (2 BTL)
Night-Mode Listening.
Single-Filter PBTL Mode Support
Separate DRC for Satellite and
I
2
C Address Selection Pin (Chip Select)
Subchannels
Supports 8-kHz to 48-kHz Sample Rate
Autobank Switching: Preload Coefficients
(LJ/RJ/I
2
S)
for Different Sample Rates. No Need to
Audio/PWM Processing
Write new Coefficients to the Part When
Independent Channel Volume Controls With
Sample Rate Changes.
24-dB to Mute
Autodetect: Automatically Detects
Separate Dynamic Range Control for
Sample-Rate Changes. No Need for
Satellite and Subchannels
External Microprocessor Intervention
21 Programmable Biquads for Speaker EQ
Requires Only 3.3 V and PVDD
and Other Audio Processing Features
Programmable Coefficients for DRC Filters APPLICATIONS
Television
DC Blocking Filters
iPod™ Dock
Support for 3D Effects
Sound Bar
General Features
Serial Control Interface Operational Without
DESCRIPTION
MCLK
The TAS5711 is a 20-W, efficient, digital audio power
Factory-Trimmed Internal Oscillator for
amplifier for driving stereo bridge-tied speakers. One
Automatic Rate Detection
serial data input allows processing of up to two
Surface Mount, 48-Pin, 7-mm × 7-mm
discrete audio channels and seamless integration to
HTQFP Package
most digital audio processors and MPEG decoders.
The device accepts a wide range of input data and
Thermal and Short-Circuit Protection
data rates. A fully programmable data path routes
Support for AD or BD Mode
these channels to the internal speaker drivers.
The TAS5711 is an I
2
S slave-only device receiving all
clocks from external sources. The TAS5711 operates
with a PWM carrier between 384-kHz switching rate
and 352-KHz switching rate depending on the input
sample rate. Oversampling combined with a
fourth-order noise shaper provides a flat noise floor
and excellent dynamic range from 20 Hz to 20 kHz.
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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.
2iPod is a trademark of Apple Inc.
PRODUCTION DATA information is current as of publication date.
Copyright © 2009–2010, 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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