Texas Instruments TAS3208EVM User manual

TAS3208EVM
Evaluation Module forTAS3208 Digital Audio Signal Processor
User's Guide
February 2008 Digital Audio & Video Products
SLEU092

TAS3208EVM
Evaluation Module forTAS3208 Digital Audio Signal Processor
User's Guide
Literature Number: SLEU092February 2008

Contents
Preface ............................................................................................................................... 5
1 Overview ................................................................................................................... 71.1 TAS3208EVM System Features .................................................................................. 81.2 PCB Key Map ...................................................................................................... 11
2 Quick Setup Guide .................................................................................................... 132.1 Electrostatic Discharge (ESD) Warning ........................................................................ 142.2 Unpacking the EVM ............................................................................................... 142.3 Power-Supply Setup .............................................................................................. 142.4 Digital Audio Inputs/Outputs ..................................................................................... 142.5 Master/Slave Mode Operation ................................................................................... 152.5.1 Master Mode .............................................................................................. 152.5.2 Slave Mode ............................................................................................... 152.6 EVM Default Configuration ...................................................................................... 152.7 TAS3208 Software Installation .................................................................................. 15
3 System Interfaces ..................................................................................................... 233.1 Control Interface (Control1), Input .............................................................................. 243.2 Digital Audio Interface, Input (J1) ............................................................................... 243.3 Analog Input (J6) .................................................................................................. 253.4 Digital Audio Interface, Output (J9) ............................................................................. 253.5 RCA Connectors .................................................................................................. 263.6 MSP430 Port Connector (J3) .................................................................................... 273.7 I
2
S Master Slave Jumper (JP3) .................................................................................. 27
4 MSP430 Programming ............................................................................................... 294.1 Example of MSP430 Programming ............................................................................. 30
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List of Figures
1-1 TAS3208EVM System ...................................................................................................... 91-2 TAS3208EVM System ..................................................................................................... 101-3 TAS3208EVM Physical Structure ....................................................................................... 112-1 GDE Startup ................................................................................................................ 162-2 Setting the I
2
C Initialization Sequence .................................................................................. 172-3 Specifying the I
2
C Initialization Sequence .............................................................................. 182-4 Loading a Process Flow ................................................................................................... 192-5 Loading a Process Flow (Part B) ......................................................................................... 202-6 GDE Test Process Flow ................................................................................................... 214-1 Example MSP430 Control ................................................................................................ 30
List of Tables
1 Related Documentation from Texas Instruments ........................................................................ 52-1 DAC8DIT2 Board Recommended Supply Voltages ................................................................... 142-2 JP3 Clock Master/Slave Setting .......................................................................................... 153-1 Control1 Pin Description ................................................................................................... 243-2 J1 Pin Description .......................................................................................................... 243-3 J6 Pin Description .......................................................................................................... 253-4 J9 Pin Description .......................................................................................................... 263-5 RCA Connectors Pin Description ........................................................................................ 263-6 J3 Pin Description .......................................................................................................... 273-7 JP3 Pin Description ........................................................................................................ 27
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PrefaceSLEU092 – February 2008
Read This First
About This Manual
This manual describes the operation of the TAS3208EVM evaluation module from Texas Instruments.
How to Use This ManualThis document contains the following chapters:
Chapter 1 – Overview
Chapter 2 – Quick Setup Guide
Chapter 3 – System Interfaces
Chapter 4 – MSP Programming
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 InstrumentsThe following table contains a list of data manuals that have detailed descriptions of the integrated circuitsused in the design of the TAS3208EVM. The data manuals can be obtained at the URL http://www.ti.com .
Table 1. Related Documentation from TexasInstruments
Part Number Literature Number
TAS3208 SLES152TLV1117-33 SLVS561TPS3825-33 SLVS165
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Additional Documentation
Additional Documentation
1. Graphical Development tool (GDE) for TAS3208 (GDE ver. TBD or later)2. General Application Notes
Trademarks
Equibit™ and PurePath Digital™ are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.
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Chapter 1SLEU092 – February 2008
Overview
The TAS3208EVM PurePath Digital™ customer evaluation amplifier module demonstrates the DigitalAudio Processor TAS3208/TAS3208IA from Texas Instruments (TI).
TAS3208DCP/TAS3208IADCP is a fully programmable high-performance audio processor. It uses anefficient, custom, multi-instruction programming environment optimized for digital audio processingalgorithms. The TAS3208/TAS3208IA architecture provides high-quality audio processing by using a 48-bitdata path, 28-bit filter coefficients, and a single-cycle 28- ×48-bit multiplier with a 76-bit accumulator. Anembedded 8051 microprocessor provides algorithm and data control for the TAS3208/TAS3208IA. TheTAS3208 is the commercial version intended for home audio and other commercial applications.
This is a signal board EVM. The EVM is delivered together with two boards – an input board with SPDIF,ACD, and USB for PC control, and a output board with DACs and SPDIF transmitter. This system is acomplete 8-channel digital audio processor system that includes digital input/output (S/PDIF), analoginputs/outputs, interface to PC and DAP features, such as digital volume control, input and output mixers,auto mute, equalization, tone controls, loudness, dynamic range compression, and surround effects.
TAS3208 applications include digital televisions, home theater systems, mini-component audio systems,and pro audio.
Topic .................................................................................................. Page
1.1 TAS3208EVM System Features ..................................................... 81.2 PCB Key Map ........................................................................... 11
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1.1 TAS3208EVM System Features
TAS3208EVM System Features
•Socketed EEPROM for download of program and coefficients•8-channel discrete I
2
S input/outputs•2-channel SPDIF receiver, optical input, into TAS3208 SDIN1•2-channel SPDIF transmitter, optical output from TAS3208 SDOUT1•2-channel SPDIF, optical input to TAS3208 SPDIFin•2-channel SPDIF, optical output from TAS3208 SDOUT2/SPDIFout•10-input multiplexed analog-to-digital converter (ADC) input•Two digital-to-analog converter (DAC) line outputs•One DAC headphone output•One line output•USB to PC connection for software control•MSP430 for stand-alone operation•Double-sided plated-through PCB layout
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USB In
Analog
Input
SDIN3 SDIN2 SDIN1
LRCLKIN
SCLKIN
MCLKIN
L1 R1 L2 R2 L3 R3 L4 R4 L5 R5 L6 R6 L7 R7 L8 R8 L9 R9 L10 R10
L1
R1
z
SPDIFin I2S
I2S Sig In
I2S Sig Out
GND
SPDIF_OUT
SPDIF_IN
SDOUT2 SDOUT1
LRCLKOUT
SCLKOUT
MCLKOUT
GND
Control
Input
DAC Line
Out 1
Headphone
SPDIF I/O
MSP430
Control
Power
Digital
Input
Analog
Output
TAS3208
Analog
Comp
SDA
SCL
GND
3.3V
GPIO1
GPIO2
/RESET
/MUTE
GPIO3
GPIO4
TUSB USB
Control
Digital Input/ Output
Lineout1L
Lineout1R
Line Out
Push
Buttons
RCA
IR
DAC Line
Out 2
GND
+ 9V
GND
- 9V
+ 9V
GND
+ 9V
GND
SPDIFout I2S
] I2S Slave
] I2S Master
TAS3208EVM System Features
Figure 1-1. TAS3208EVM System
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SHT 5
SHT 3
SHT 7
SHT 6
SHT10
LEDs
SDA
GPIOx
SDA
RESET2
MUTE
HEADPHONE
OUT
3.3V
SHEET 8
(OPTICAL
SPDIF IN
+5V
9V-1 IN
SPDIF OUT
-5V
9V-2 IN
Lock
SCL
SCL
SHT 4
Push Buttons
SHT 2
SHT 3
SHT 9
DACOUT2
SHT 9
SHT 10
TYPE A JACK
EEPROM1
USB
OPTICAL
SPDIF IN I2S
RESET-USB
GPIOx
DATA1
DATA2
MCLK
DATA0
SCLK
LRCLK
LRCLK
MCLK
SDIN1
LINx
SDIN2
SDIN1
SDIN3
MCLK
SCLK
LRCLK
3.3V
+5V
POWER
SUPPLY
SHT 9
DACOUT1
SDOUT2
SDOUT1
LRCLKOUT
SCLKOUT
MCLKOUT
CONTROLLER
SCLK
TAS3208 LINE OUTPUT
EEPROM2
LINEOUT 1
LINEOUT 2
20x Analog Inputs
SHTS 11/12
SPDIF Output
Line Output
TAS3208EVM System Features
Figure 1-2. TAS3208EVM System
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1.2 PCB Key Map
SPDIF I2S IN SPDIF SPDIF I2S SPDIF GND GND
I2S IN SDOUT2 IN OUT I2S OUT + 9 V -9 V
IR
Receiver
USB
IN
Control
IN
Analog Analog In Lineout
In 1 L & R 1 L&R to 20 L & R L & R
I2S Slave
I2S Master
Headphone
DACout1
DACout2
PCB Key Map
The physical structure for the TAS3208EVM is shown in Figure 1-3 .
Figure 1-3. TAS3208EVM Physical Structure
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Overview 12 SLEU092 – February 2008Submit Documentation Feedback

Chapter 2SLEU092 – February 2008
Quick Setup Guide
This chapter describes the TAS3208EVM board in regards to power supplies and system interfaces. Thechapter provides information regarding handling and unpacking, absolute operating conditions, and adescription of the factory default switch and jumper configuration.
This chapter provides a step-by-step guide to configuring the TAS3208EVM for device evaluation.
Topic .................................................................................................. Page
2.1 Electrostatic Discharge (ESD) Warning ........................................ 142.2 Unpacking the EVM ................................................................... 142.3 Power-Supply Setup .................................................................. 142.4 Digital Audio Inputs/Outputs ...................................................... 142.5 Master/Slave Mode Operation ..................................................... 152.6 EVM Default Configuration ........................................................ 152.7 TAS3208 Software Installation .................................................... 15
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2.1 Electrostatic Discharge (ESD) Warning
2.2 Unpacking the EVM
2.3 Power-Supply Setup
2.4 Digital Audio Inputs/Outputs
Electrostatic Discharge (ESD) Warning
Many of the components on the TAS3208EVM are susceptible to damage by ESD. Customers areadvised to observe proper ESD handling precautions when unpacking and handling the EVM, includingthe use of a grounded wrist strap at an approved ESD workstation.
CAUTION
Failure to observe ESD handling procedures may result in damage to EVMcomponents.
Upon opening the TAS3208EVM package, check that the following items are included:•TAS3208EVM board using one TAS3208DCP (1 pc.)•9-V ac-to-dc adapters (2 pc.)•USB cable for connecting TAS3208EVM board to USB port on a PC for PurePath Studio™ software (1pc.)•PurePath CD-ROM containing data sheets, application reports, user's guides, gerber files, and PCsoftware tools (1 pc.)
If any of these items are missing, please contact the Texas Instruments Product Information Center toinquire about a replacement.
The TAS3208EVM is powered via the ±9-V terminals or the 9-V (center hot) power connectors, PJ1 andPJ2. The TAS3208EVM generates a 5-V, –5-V, and 3.3-V supply that is fed to the TAS3208EVM.1. Set the power supplies to 9 V and –9 V. Then turn off the supplies and connect them to the EVM.2. Once the cables are connected, switch on the power supply. Current consumption should be less thanshown in Table 2-1 . If it is higher, switch off and double check the cabling.
Table 2-1. DAC8DIT2 Board Recommended Supply Voltages
Description Voltage Limitations Current Requirement
9 V 8.5 V to 9.5 V 0.3 A–9 V –8.5 V to 9.4 V 0.1 A
Format optical TOSLINK input, OPTO1, or in I
2
S format on connector J1. The pinout this and the otherconnectors is shown in Chapter 3 .
The SPDIF I
2
S IN input supplies signal to the TAS3208 SDIN1. When a valid lock is detected by theDIR9001 SPDIF receiver, a blue SPDIF lock LED is lit.
The digital audio outputs can be to I
2
S or SPDIF format optical TOSLINK. The I
2
S output is provided onconnector J9. There are two SPDIF output options. One SPDIF output can be produced by the TAS3208on SDOUT2. This is set by a TAS3208 I
2
C register configuration option. This output is available onOPTO3. The other SPDIF output is SDOUT1, which is converted into SPDIF format by an externalencoder. This is output on OPTO4.
The TAS3208 has an optical SPDIF input from OPTO2. This is a pass-through-only connection to theTAS3208 SDOUT2/SPDIF output on OPTO3.
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2.5 Master/Slave Mode Operation
2.5.1 Master Mode
2.5.2 Slave Mode
2.6 EVM Default Configuration
2.7 TAS3208 Software Installation
Master/Slave Mode Operation
The TAS3208EVM is delivered and configured to operate in clock master mode. However, the TAS3208can be configured as a clock slave or master using JP3.
Table 2-2. JP3 Clock Master/Slave Setting
Pin No. I
2
S Clock Mode
1, 2 Slave2, 3 Master
In master mode, the master clock (MCLK), SCLK< and LRCLK for the system are provided on J9. Datacan be input on the analog input and as I
2
S data on J1.
SPDIF I
2
S input from OPTO1 is not supported in master mode.
Data can be output from the I
2
S outputs on J9, SPDIF I
2
S output, OPTO4, and from SPDIF SDOUT2when the SDOUT2 is configured for SPDIF output.
In slave mode, data and clocks can be input in the SPDIF I
2
S IN, OPTO1, or the I
2
S input, J1. The SPDIFinput is selected automatically when the EVM detects a valid SPDIF signal on OPTO1. If the EVM doesnot detect a valid SPDIF signal on OPTO1, the I
2
S inputs are used.
In slave mode, the TAS3208 ADC requires an external clock input from the I
2
S IN or the SPDIF I
2
S IN forcorrect operation. The performance of the ADC is affected by the clock source jitter.
Data can be output from the I
2
S outputs on J9, SPDIF I
2
S output, OPTO4, and from SPDIF SDOUT2when the SDOUT2 is configured for SPDIF output.
The TAS3208 is placed into the default configuration by receiving a reset. The TAS3208 receives a resetfrom the power-up circuitry by pressing the Reset button, or by receiving a reset signal through the USBinterface. Following the receipt of reset, the TAS3208EVM loads the contents of EEPROM2 and comes upwith Mute enabled, clock master mode enabled.
As described in this section, an example PurePath Studio GDE processing flow is supplied that configuresthe TAS3208 to support an I
2
S digital PCM input, analog input, digital output, Line output, headphoneoutput, and TAS5601 power stage for both master and slave mode.
The TAS3208 is programmed and configured using PurePath Studio. PurePath Studio is composed of agraphical development environment (GDE), integrated development environment (IDE), and componentpublisher. The GDE permits the user to program the TAS3208 using predefined signal processingcomponents that are placed and connected graphically on the GDE pallet. PurePath Studio runs on aWindows® XP computer.
The IDE is a software development environment that permits the user to construct and test the code for anew GDE component.
The component publisher is used to create the component, define the component’s control interface andthe ways in which the component can be used.
PurePath Studio software is supplied on the TAS3208 Software CD-ROM. The latest version of PurePathStudio is also available on the TI extranet to registered users.
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TAS3208 Software Installation
Accessing the TI PurePath Studio extranet site•Open a web browser and go to the following site and fill in the requested information:http://iag.itg.ti.com/msa/
•There are two types of licenses:– For those who are interested only in evaluating the tools, there is an evaluation license.– For those who are interested in product development using PurePath Studio tools, there is aproduction license. This is the software license that is needed to support the EVM.
Access to the extranet is available by using a browser to access my.ti.com and selecting Extranets. ThePurePath Studio software is contained under the link TAS3108-PurePath Studio.
Loading the PurePath Studio software suite•From CD-ROM – Insert the TAS3208 Software CD-ROM. Open the TAS3208GDE directory and runsetup_PurePath_Studio_vx.xx.exe. Follow the instructions to compete the installation.•From download – Save the installation file to temporary directory. Go to the temporary directory andrun setup_PurePath_Studio_vx.xx.exe. Follow the instructions to compete the installation.•The CD-ROM also contains initialization files for master and slave EVM initialization and a simpleprocess flow that can be used to verify the TAS3208EVM operation.•After PurePath Studio installation is complete, copy the contents of the CD-ROM TAS3208_Configdirectory to C:\Program Files\Texas Instruments Inc\PurePath Studio\MyProcessFlows.
Using the TAS3208EVM
After completing the software installation, turn on power supplies and connect the USB cable to theInput-USB board.
To start the GDE, go to the Start menu and select All Programs/Texas Instruments/PurePath Studio/PurePath Studio GDE.
Figure 2-1. GDE Startup
The start-up of GDE takes a few seconds.
The TAS3208 requires an initialization configuration file to be loaded after a reset. This file configures theTAS3208 for the EVM configuration, enables the analog outputs, and sets the clock master/slave mode.Before loading or building a process flow, verify that an initialization file is specified in the Execute I
2
Ccommand file window. This window is found under Tools/I
2
C Command Tool.
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TAS3208 Software Installation
Figure 2-2. Setting the I
2
C Initialization Sequence
If the EVM is to be operate in Master mode, select 3208EVM_init_master.cfg.
If the EVM is to be operate in Slave mode, select 3208EVM_init_slave.cfg.
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TAS3208 Software Installation
Figure 2-3. Specifying the I
2
C Initialization Sequence
Then verify that the “Execute on reset” box is checked.
At this point, a process flow can be built using the TAS3208 application framework, the TAS3208 I/Ocomponents, and the audio processing components.
Building and running a process flow
A good starting point is to load the predefined TAS3208 Test process flow.
This flow is loaded by selecting File/Open.
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TAS3208 Software Installation
Figure 2-4. Loading a Process Flow
Select TAS3208TEST.pfw (see Figure 2-5 ).
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TAS3208 Software Installation
Figure 2-5. Loading a Process Flow (Part B)
This will load a process flow that streams a signal from either the ADC or SAP1 input to the DAC and SAPoutputs.
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