TAS3208EVM-LC Low-Cost (LC) Evaluation Module (EVM) for TAS3208 Digital Audio Processor User's Guide Literature Number: SLEU097 April 2008
SLEU097 – April 2008 Submit Documentation Feedback
Contents Preface ............................................................................................................................... 5 1 1.1 1.2 1.3 ................................................................................................................... 7 TAS3208EVM-LC Features ................................................................................................ 8 TAS3208EVM-LC Block Diagram ..................................................................................
www.ti.com List of Figures 1-1 1-2 1-3 2-1 Block Diagram ................................................................................................................ 9 Component Mapping ....................................................................................................... 10 Printed Circuit Assembly .................................................................................................. 10 PurePath Studio I2C Command File Window ..............................................
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 Texas Instruments. How to Use This Manual This document contains the following chapters: • Chapter 1 – Overview • Chapter 2 – Quick Setup Guide • Chapter 3 – System Interfaces Information About Cautions and Warnings This manual may contain cautions and warnings. CAUTION This is an example of a caution statement.
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 Updates The TAS3208 is shipped with the latest version of PurePath Studio GDE at the time of the initial EVM release.
Chapter 1 SLEU097 – April 2008 Overview The PurePath Digital™ TAS3208EVM-LC demonstrates the TAS3208 Digital Audio Processor from Texas Instruments (TI). The TAS3208 is a fully programmable high-performance system on chip (SoC) digital audio processor. It uses an efficient, custom, multi-instruction programming environment optimized for digital audio processing algorithms.
TAS3208EVM-LC Features 1.1 www.ti.com TAS3208EVM-LC Features • • • • • • • • • • Three serial digital stereo inputs (S/PDIF, I2S, left- or right-justified) Two serial digital stereo outputs (S/PDIF, I2S, 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.
TAS3208EVM-LC Block Diagram www.ti.com 1.2 TAS3208EVM-LC Block Diagram POWER SUPPLY USB BUS POWER +5 V/500 mA 5V 3.3 V LDO LPF HP POR 3.3 V SCLK SCLK LRCLK LRCLK MCLK I2S INPUT HEADER MCLK SDOUT1/2 SDIN1 I2S OUTPUT HEADER SDIN2 SDIN3 2x ANALOG INPUTS 3.5 mm CONNECTOR TAS3208 LINEOUT1 L/R DACOUT2 L/R HPOUT L/R 6x ANALOG INPUTS HEADER LOW PASS FILTER ANALOG OUTPUTS HEADER SDA TUSB3210 USB-I2C SCL USB-RESET HPOUT L/R RESET RESET HEADPHONE AMP 3.
TAS3208EVM-LC PCB Component Mapping TAS3208EVM-LC PCB Component Mapping LED Reset LED TUSB3210 (underside) 2 I S Input Header 2 I S Output Header Analog Output Header EEPROM Control Header USB Input LED LED 1.3 www.ti.com Stereo Line In Jack Analog Input Header Headphone Output TAS3208 Figure 1-2. Component Mapping Figure 1-3.
Chapter 2 SLEU097 – April 2008 Quick Setup Guide This chapter provides a step-by-step guide to configuring the TAS3208EVM-LC for device evaluation. This chapter describes the TAS3208EVM-LC board in regard to power supply requirements and system interfaces. The chapter provides information regarding handling, unpacking, and absolute operating conditions. Topic 2.1 2.2 2.3 2.4 .................................................................................................. Unpacking the EVM .............
Electrostatic Discharge Warning www.ti.com Electrostatic Discharge Warning Many of the components on the TAS3208EVM-LC are susceptible to damage by electrostatic discharge (ESD). Customers are advised to observe proper ESD handling precautions when unpacking and handling the EVM, including the use of a grounded wrist strap at an approved ESD workstation. CAUTION Failure to observe ESD handling procedures may result in damage to EVM components. 2.
Developing the Process Flow on the EVM www.ti.com Once registered, access to the extranet is available by using a browser to access my.ti.com and selecting extranets. The PurePath Studio software is contained under the link TAS3208 PurePath Studio. • To load PurePath Studio software suite – From CD-ROM • Insert the TAS3208 Software CD-ROM • Open the TAS3208GDE directory and run setup_PurePath_Studio_vx.xx.exe • Follow the instructions to compete the installation.
Developing the Process Flow on the EVM www.ti.com Figure 2-1. PurePath Studio I2C Command File Window 2.4.3 Master/Slave Mode Operation The TAS3208 can be configured for both master and slave modes via the SAP/Clock register. By default, the TAS3208 is configured for master mode. The TAS3208 can be changed to operate in slave mode by loading the correct SAP/Clock registers settings via the configuration file.
www.ti.com Developing the Process Flow on the EVM 2.4.5 Running the Process Flow To run the process flow, use the build menu and select run. Build >> Run The GDE generates and assembles the code for the process flow, downloads it to the EVM, then resets the TAS3208EVM-LC board. At this point the GDE switches from Edit Mode to Run Mode, and streams audio from input to output.
Quick Setup Guide SLEU097 – April 2008 Submit Documentation Feedback
Chapter 3 SLEU097 – April 2008 System Interfaces This chapter describes the TAS3208EVM-LC board in regard to system interfaces. Topic 3.1 3.2 3.3 .................................................................................................. Page Digital Audio Interface ............................................................... 18 Analog Audio Interface .............................................................. 19 Control Interface ..........................................................
Digital Audio Interface 3.1 www.ti.com Digital Audio Interface The digital audio interface contains the digital I2S clocks and data. Please refer to the TAS3208 Data Manual for signal timing an overview of the I2S protocol. 3.1.1 Digital Input Header Table 3-1.
Analog Audio Interface www.ti.com 3.2 Analog Audio Interface 3.2.1 Analog Output Header Table 3-3.
Control Interface 3.3 www.ti.com Control Interface This interface connects the TAS3208 to an external controller. This is a general purpose interface. Table 3-5.
EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
EVM WARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of 0 V to 3.3 V and the output voltage range of 0 V to 3.3 V. Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions concerning the input range, please contact a TI field representative prior to connecting the input power.
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
