Texas Instruments TAS3208EVM-LC User manual

TAS3208EVM-LC
Low-Cost (LC) Evaluation Module (EVM)for TAS3208 Digital Audio Processor
User's Guide
Literature Number: SLEU097April 2008

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Contents
Preface ............................................................................................................................... 5
1 Overview ................................................................................................................... 71.1 TAS3208EVM-LC Features ................................................................................................ 81.2 TAS3208EVM-LC Block Diagram ......................................................................................... 91.3 TAS3208EVM-LC PCB Component Mapping .......................................................................... 10
2 Quick Setup Guide .................................................................................................... 112.1 Unpacking the EVM ........................................................................................................ 122.2 Power Supply Setup ....................................................................................................... 122.3 PurePath GDE Software Installation ..................................................................................... 122.4 Developing the Process Flow on the EVM .............................................................................. 132.4.1 Default Configuration ............................................................................................. 132.4.2 Configuring the EVM .............................................................................................. 132.4.3 Master/Slave Mode Operation ................................................................................... 142.4.4 Loading the Process Flow ........................................................................................ 142.4.5 Running the Process Flow ....................................................................................... 15
3 System Interfaces ..................................................................................................... 173.1 Digital Audio Interface ..................................................................................................... 183.1.1 Digital Input Header ............................................................................................... 183.1.2 Digital Output Header ............................................................................................. 183.2 Analog Audio Interface .................................................................................................... 193.2.1 Analog Output Header ............................................................................................ 193.2.2 Analog Input Header .............................................................................................. 193.3 Control Interface ............................................................................................................ 20
Important Notices ............................................................................................................... 21
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List of Figures
1-1 Block Diagram ................................................................................................................ 91-2 Component Mapping ....................................................................................................... 101-3 Printed Circuit Assembly .................................................................................................. 102-1 PurePath Studio I
2
C Command File Window ........................................................................... 14
List of Tables
1 Related TI Documentation .................................................................................................. 53-1 Digital Audio Input Interface (J1) ......................................................................................... 183-2 Digital Audio Output Interface (J3) ....................................................................................... 183-3 Analog Output Interface (J5) .............................................................................................. 193-4 Analog Input Interface (J4) ................................................................................................ 193-5 Control Interface (J6) ...................................................................................................... 20
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Preface
SLEU097 – April 2008
Read This First
About This Manual
This manual describes the operation of the TAS3208 low-cost (LC) evaluation module (EVM) from TexasInstruments.
How to Use This ManualThis document contains the following chapters:•Chapter 1 – Overview•Chapter 2 – Quick Setup Guide•Chapter 3 – System Interfaces
Information About Cautions and WarningsThis manual may contain cautions and warnings.
CAUTION
This is an example of a caution statement.
A caution statement describes a situation that could potentially damage yoursoftware or equipment.
WARNINGThis is an example of a warning statement.
A warning statement describes a situation that could potentiallycause harm to you.
The information in a caution or a warning is provided for your protection. Please read each caution andwarning carefully.
Related Documentation From Texas InstrumentsTable 1 contains a list of data manuals that have detailed descriptions of the integrated circuits used in thedesign of the TAS3208EVM-LC. The data manuals can be obtained at www.ti.com .
Table 1. Related TI Documentation
DEVICE LITERATURE NUMBER
TAS3208 SLES201BTUSB3210 SLLS466TPA6610A2 SLOS314TPS3808 SBVS050SN74LVC1G08 SCES217TPS79533 SLVS350
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Additional Documentation www.ti.com
Additional Documentation
•PurePath Studio™ Graphical Development Environment (GDE) tool for TAS3208•General application notes•TAS3108 Audio DSP Instruction Set Reference Guide (SLEU067)
Important Software UpdatesThe TAS3208 is shipped with the latest version of PurePath Studio GDE at the time of the initial EVMrelease.
Before starting any new design, verify that you are using the latest version of PurePath Studio GDEavailable by requesting access to the Texas Instruments Mixed Signal Audio & Video extranet viahttp://www-k.ext.ti.com/sc/technical-support/email-tech-support.asp?DSP . Once access is granted, anynew build of the software can simply be downloaded via an internet connection.Trademarks
PurePath Studio, PurePath Digital are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.
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Chapter 1SLEU097 – April 2008
Overview
The PurePath Digital™ TAS3208EVM-LC demonstrates the TAS3208 Digital Audio Processor from TexasInstruments (TI).
The TAS3208 is a fully programmable high-performance system on chip (SoC) digital audio processor. Ituses an efficient, custom, multi-instruction programming environment optimized for digital audioprocessing algorithms. The TAS3208 architecture provides high-quality audio processing by using a 48-bitdata path, 28-bit filter coefficients, and a single-cycle 28 x 48-bit multiplier with a 76-bit accumulator. Ancustom embedded 8051 microprocessor provides algorithm and data control. The TAS3208 is thecommercial version intended for home audio and other commercial applications.
The TAS3208 is well-suited for inclusion in digital televisions, home theater systems, mini-componentaudio systems, and pro-audio systems.
Topic .................................................................................................. Page
1.1 TAS3208EVM-LC Features ........................................................... 81.2 TAS3208EVM-LC Block Diagram ................................................... 91.3 TAS3208EVM-LC PCB Component Mapping ................................. 10
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1.1 TAS3208EVM-LC Features
TAS3208EVM-LC Features www.ti.com
•Three serial digital stereo inputs (S/PDIF, I
2
S, left- or right-justified)•Two serial digital stereo outputs (S/PDIF, I
2
S, left- or right-justified)•Three analog stereo inputs multiplexed to one analog-to-digital converter•One analog stereo digital-to-analog output•One analog stereo line output•One 24-mW, 3.5-mm headphone output jack•One 3.5-mm stereo line input jack•USB interface for I
2
C control via PurePath Studio GDE•Double-sided plated-through PCB layout•Three LED status indicators for reset, I
2
C, and USB link
The primary usage mode of the EVM is to provide a software development platform that receives thecontrol and signal processing flow descriptions from a host PC running the PurePath™ Studio GraphicalEnvironment (GDE) or Integrated Development Environment (IDE) through a Universal Serial Bus (USB)interface. In this mode of operation, the user develops a signal processing flow and custom componentsusing PurePath™ Studio. The resulting process flows can be loaded into the EVM EEPROM via the USB.The TAS3208 then loads the EEPROM contents and executes the signal processing flows. Duringexecution, many of the TAS3208 signal processing flow parameters can be dynamically changed usingthe PurePath™ Studio Graphical Development Environment, allowing the user to customize the processflow without resetting the device.
The TAS3208EVM-LC contains hardware logic, which can be utilized to reset the TAS3208 Digital AudioProcessor without disconnecting and re-enumerating the USB Controller. A red LED indicates the periodin which the reset is active. Additional on-board LEDs indicate that the board is powered, Active I
2
Ctransactions from either a host controller or the EEPROM, and that the USB link to the host PC isestablished.
Further information on using the EVM with the PurePath Studio GDE is included in subsequent sections ofthis document and through additional PurePath Studio documentation.
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1.2 TAS3208EVM-LC Block Diagram
SDA
SCL
RESET
SDIN3
SDIN1
LRCLK
MCLK
SCLK
HP
POWER
SUPPLY
POR
MCLK
LRCLK
SDIN2
5 V 3.3 V
LDO
3.3 V
RESET
SCLK
TUSB3210
USB-I2C
6x ANALOG INPUTS
HEADER
HPOUT L/R
DACOUT2 L/R
LPF
USB BUS POWER
+5 V/500 mA
I2S
OUTPUT
HEADER
SDOUT1/2
2x ANALOG INPUTS
3.5 mm CONNECTOR TAS3208 LINEOUT1 L/R
HEADPHONE AMP
3.5 mm CONNECTOR
ANALOG
OUTPUTS
HEADER
LOW
PASS
FILTER
POWER-ON RESET
USB-RESET HPOUT L/R
I2S
INPUT
HEADER
www.ti.com TAS3208EVM-LC Block Diagram
Figure 1-1. Block Diagram
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1.3 TAS3208EVM-LC PCB Component Mapping
USB
Input
TUSB3210
(underside)
LED LED
LED
LED
Analog Input Header
Headphone Output
Stereo
Line In Jack
Control Header I S Input Header
2I S Output Header 2Analog Output Header
EEPROM
TAS3208
Reset
TAS3208EVM-LC PCB Component Mapping www.ti.com
Figure 1-2. Component Mapping
Figure 1-3. Printed Circuit Assembly
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