TAS3308
DIGITAL AUDIO PROCESSOR
WITH ANALOG INTERFACE
www.ti.com
SLES215A–FEBRUARY 2008–REVISED MARCH 2008
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FEATURES
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Audio Input/Output
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Audio Digital Signal Processor
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Up to Three Synchronous Serial Audio
Inputs (6 Channels)
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Programmable Functionality
135-MHz Operation
Up to Two Synchronous Serial Audio
Outputs (4 Channels)
Left, RIght and I2S Input Data Formats: 16-,
20-, or 24-Bit Data
Left, Right and I2S Output Data Formats:
16-, 20-, or 24-Bit Data
48-Bit Datapath With 76-Bit Accumulator
Hardware Single Cycle Multiplier (28 × 48)
Two Memory Loads and One Memory Store
Per Cycle
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Usable 1K Words Data RAM (48 Bit) and
Usable 1K Coefficient RAM (28 Bit)
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64 × Fs Bit Clock Rate
3.25K Words Instruction Program RAM
(2.8K Words Available)
24.576-MHz XTAL Input for Master Clock
Modes and Clock Auto Detection
360 mS at 48 KHz, 17,408 Words 24-Bit
Delay Memory
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Slave Mode 256, 384, or 512 × Fs MCLKIN
With Automatic Clock Rate Detection
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PWM Features
Slave Mode 32-, 44.1-, and 48-kHz Fs With
Auto Sample Rate Detection
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Proven PurePath Digital™ Technology
Fourth-Order Chaotic Noise Shaper With
Non-Linear Correction
Master Mode – 48-kHz Fs 10 Multiplexed
Stereo Analog Inputs Selectable Into One
Stereo ADC. ADC Maximum Input Level: 1
Vrms SE
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High-Quality DNR 105 dBA (Typical) PWM
Performance
Click and Pop Minimizing at Power
Up/Down Using TI Patented Technology
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Three Stereo Differential PWM Outputs
High-Quality DNR 100-dBA (Typical) ADC
Channel Performance (2 Channels) With
Master Mode Clock
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General Features
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Easy-to-Use Control Interface
I2C Serial Control Master and Slave
Interface
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High-Quality DNR 105-dBA (Typical) PWM
Channel Performance (6 Channels)
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Control Interface Operational Without
External MCLK Input
One Single-Ended Analog Stereo Line
Driver Output With 1 of 10 Selectable
Inputs, 10-kΩ, 100=pF Drive Capability
(Maximum Output Level: 1 Vrms)
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Single 3.3-V Power Supply
Integrated Regulators
100-Pin TQFP Package
M8051 Device Controller
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Line-Out Supports Left/Right, Left/Left, and
Right/Right Combinations
Auto Clock and Serial Data Rate Detection
and Automatic Device Configuration
Without Audible Artifacts
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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.
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PurePath Digital is a trademark of Texas Instruments.
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 © 2008, Texas Instruments Incorporated