TAS5086_17 Datasheet, PDF (1/49 Pages) Texas Instruments – PurePath Digital AUDIO SIX-CHANNEL PWM PROCESSOR

TAS5086
www.ti.com ................................................................................................................................................... SLES131C – FEBRUARY 2005 – REVISED JUNE 2008
PurePath Digital™ AUDIO SIX-CHANNEL PWM PROCESSOR
FEATURES
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•23 Audio Input/Output
– Automatic Master Clock Rate and Data
Sample Rate Detection
– Four Serial Audio Inputs (Eight Channels)
– Support for 32-, 44.1-, 48-, 88.2-, 96-, 176.4-,
and 192-kHz Sampling Rates
– Data Formats: 16-, 20-, or 24-Bit Input Data;
Left-Justified, Right-Justified, and I²S
– 64- or 48-f_S Bit-Clock Rate
– 128-, 192-, 256-, 384-, and 512-f_S Master
Clock Rates (Up to a Maximum of 50 MHz)
– Six PWM Audio Output Channels
– Any Output Channel Can be Mapped to Any
Output Pin
– Supports Single-Ended and Bridge-Tied
Loads
– I²S Serial Audio Output
• Audio Processing
– Volume Control Range of 48 dB to –100 dB
– Master Volume Control from 24 dB to –100
dB in 0.5-dB Increments
– Six Individual Channel Volume Controls
With 24-dB to –100-dB Attenuation in
0.5-dB Increments
– Serial Output Can Be Produced by
Downmix of 5.1-Channel Input or Fourth
Serial Input
– 5.1-Channel Downmix to 2.1 or 3.1 PWM
Output Speaker System
– Integrated Bass Management
– Two Programmable Biquads in Subwoofer
Channel
– Full Six-Channel Input and Output Mapping
– Selectable DC Blocking Filters
• PWM Processing
– 8× Oversampling With Fourth-Order Noise
Shaping at 44.1, 48 kHz; 4× Oversampling
at 88.2, 96 kHz; 2× Oversampling at 176.4,
192 kHz; and 12× Oversampling at 32 kHz
– ≥105-dB Dynamic Range
(TAS5086+TAS5186)
– THD < 0.06% (TAS5086 Only)
– 20-Hz–20-kHz Flat Noise Floor for 44.1-, 48-,
88.2-, 96-, 176.4- and 192-kHz Data Rates
– Digital De-Emphasis for 32-kHz, 44.1-kHz
and 48-kHz Data Rates
– Intelligent AM Interference Avoidance
System Provides Clear AM Reception
– Optimized PWM Sequence for Click- and
Popless Start and Stop
– Optimized PWM Sequence for Charging of
AC-Coupling Capacitors in Single-Ended
Configurations
– Adjustable Modulation Limit From 93.8% to
99.2%
• General Features
– Automated Operation With Easy-to-Use
Control Interface
– I²C Serial Control Slave Interface
– Control Interface Operational Without
MCLK
– Single 3.3-V Power Supply
– 38-Pin TSSOP Package
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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.
PurePath Digital is a trademark of Texas Instruments.
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All other trademarks are the property of their respective owners.
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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 © 2005–2008, Texas Instruments Incorporated