TAS3108_14 Datasheet, PDF (1/63 Pages) Texas Instruments – AUDIO DIGITAL SIGNAL PROCESSORS

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1 Introduction
Not Recommended for New Designs
TAS3108, TAS3108IA
AUDIO DIGITAL SIGNAL PROCESSORS
SLES152B – OCTOBER 2005 – REVISED NOVEMBER 2007
1.1 Features
• 8 channel Programmable Audio Digital Signal
Processor (DSP)
• 135-MHz Maximum Speed, >2800 Processing
Cycles Per Sample at 48 kHz
• Sample Rates of 32 kHz to 192 kHz
• 48-Bit Data Path and 28-Bit Coefficients
• Single-Cycle, 76-Bit Multiply Accumulate
• Five Simultaneous Operations Per Clock Cycle
• 1022 Words of 48-Bit Data Memory
• 1022 Words of 28-Bit Coefficient Memory
• 3K Words of 54-Bit Program RAM
• 5.88K Words of 24-Bit Delay Memory
(122.5 ms at 48 kHz)
• 15 Stereo/TDM Data Formats
• Independent Input/Output Data Formats
• 16-, 20-, 24-, and 32-Bit Word Sizes
• 64-f_S, 128-f_S, 192-f_S, and 256-f_S SCLK to
Support Discrete 4 channel TDM, 6 channel
TDM, and 8 channel TDM Data-Transfer
Formats
• Two I²C Ports for Slave or Master Download
• Soft Volume Controller
• Dither Generator
• Efficient log²/2^x Estimator
• Single 3.3-V Power Supply
• 38-Pin Thin Shrink Small-Outline Package
(TSSOP) (DCP)
• AEC-Q100 (Grade 2: –40°C to 105°C)
Compliant for Automotive Applications
(TAS3108IA)
1.2 Applications
• Automotive Sound Systems
• Digital Televisions
• Home Theater Systems
• Mini-Component Audio
SDIN1
SDIN2
SDIN3
SDIN4
MCLK
LRCLK
SCLKIN
SCLKOUT1
SCLKOUT2
I²C Port #1
I²C Port #2
Serial
Audio
8
Input
Port
PLL
and
Clock
Control
I²C
Interface
TAS3108/TAS3108IA
Audio DSP Core
8
48-Bit Data Path
28-Bit Coefficients
76-Bit MAC
3K Code RAM
1K Data RAM
1K Coeff. RAM
5.8K Delay RAM
Boot ROM
8051 MCU
8-Bit Microprocessor
256 IRAM
2K ERAM
12K Code RAM
Serial
Audio
Output
Port
Volume
Update
SDOUT1
SDOUT2
SDOUT3
SDOUT4
B0074-01
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 document.
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 © 2005–2007, Texas Instruments Incorporated