Related Manuals for Texas Instruments DSP-Codec
Summary of Contents for Texas Instruments DSP-Codec
- Page 1 DSP−Codec Development Platform User’s Guide September 2002 Data Acquisition Products SLAU090...
- Page 2 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.
- Page 3 EVM IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety measures typically found in the end product incorporating the goods.
- Page 4 EVM schematic located in the EVM User’s Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright 2002, Texas Instruments Incorporated...
- Page 5 Preface Read This First About This Manual This user’s guide describes the operation and use of the DSP-codec development platform. A complete circuit description as well as schematic diagram and bill of materials are also included. How to Use This Manual This document contains the following chapters: Chapter 1 –...
- Page 6 Contents FCC Warning This equipment is intended for use in a laboratory test environment only. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules, which are designed to provide reasonable protection against radio frequency interference.
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Page 7: Table Of Contents
Figures DSP-Codec Development Platform .......... - Page 8 Contents viii...
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Page 9: Introduction And Evm Overview
Chapter 1 Introduction and EVM Overview This chapter provides a brief overview of the DSP-codec development plat- form. Topic Page Features ........... . . -
Page 10: Features
Flexible interface to popular TI DSPs General codec requirements are addressed 1.2 Introduction The DSP-codec development platform provides all the supplementary control signals necessary to interface a range of TI codecs to TI DSP starter kits (DSKs). The platform supports the following devices... -
Page 11: Digital Interface
Chapter 2 Digital Interface This chapter describes the digital interface of the DSP-codec development platform. Topic Page Introduction .......... -
Page 12: Introduciton
Introduciton 2.1 Introduciton There are two sections within the digital interface of the development platform: DSP-to-platform Platform-to-codec Figure 2-1. DSP-Codec Development Platform 40 Pin Connector Is Assembled Onto the Top Side of Board and Mates With Various Codecs 80 Pin DSK... -
Page 13: Dsp-To-Platform
DSP-to-Platform 2.2 DSP-to-Platform The development platform mates with TI DSKs via the 80-pin Samtec connector located at J2. Consult the schematic for pinout details. 2.3 Platform-to-Codec Codec EVMs mate with the development platform via a 40-pin Samtec connector located at J3. The mating connector (Samtec part number, SSW-120-22-F-D-VS-K) is used on the EVM board to provide the electrical connections necessary for various codec EVMs. - Page 14 Platform-to-Codec Table 2-1. J2 Connector Pinouts (Continued) Pin Number Signal Description J2.32 DGND Digital ground J2.33 3.3V_A_DRV Output driver supply 3.3 V J2.34 AGND Analog ground J2.35 3.3V_A_DRV Output driver supply 3.3 V J2.36 AGND Analog ground J2.37 3.3V_A Analog 3.3 V J2.38 AGND Analog ground...
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Page 15: Support Functions
Chapter 3 Support Functions This chapter provides a description of the codec support functions. Topic Page Introduction ..........Key Signal Synchronization . -
Page 16: Introduction
Introduction 3.1 Introduction The development platform supports a number of functions required by the codecs: MCLK generation Reset generation Power options Alternatives for each function are described below. 3.1.1 MCLK Generation MCLK is the clock required by the Sigma Delta converter. All other timing is derived from MCLK. -
Page 17: Key Signal Synchronization
Key Signal Synchronization 3.2 Key Signal Synchronization The reset and power-down signals must be synchronized to MCLK before being applied to any codec. As mentioned previously, RESET is generated by the DSK or the user, and is asynchronous to the MCLK. Synchronization is achieved by D-type flip-flop. -
Page 19: Evm Bill Of Materials And Schematic
Chapter 4 EVM Bill of Materials and Schematic The development platform bill of materials and schematic are provided in this chapter. Topic Page EVM Bill of Materials ......... . EVM Schematic . -
Page 20: Evm Bill Of Materials
EVM Bill of Materials 4.1 EVM Bill of Materials The following table contains a complete bill of materials for the DSP-codec development platform. The schematic diagram is also provided for reference. Contact the product information center, or e-mail dataconvapps@list.ti.com you have questions regarding this EVM. - Page 21 Revision History ECN Number Approved Power Supply DSP & AIC Interface Power DSP interface DSP_3.3VDC DSP_3.3VDC DSP_5VDC DSP_5VDC 1.8V_D 1.8V_D 3.3V_D 3.3V_D 3.3V_A 3.3V_A 3.3V_A_DRV 3.3V_A_DRV 12500 TI Boulevard. Dallas, Texas 75243 Title: DSP / CODEC Development Platform Engineer: DOCUMENTCONTROL # REV: 6430338 Drawn By:...
- Page 22 Revision History ECN Number Approved 270R DGND 3.3V_D VOUT1 DSP_5VDC Vin_1 Vout_1 3.3V_D Vin_1 Vout_1 Vsense1 + C1 33uF 1.8V_D 0.22uF Vin_2 Vin_2 /RESET DGND DGND VOUT2 Vout_2 1.8V_D Vout_2 Vsense2 + C2 33uF 0.22uF /MR1 /MR2 TPS70151 DGND DGND DGND AGND 270R...
- Page 23 Peripheral & Control Connector DSP_5VDC DSP_3.3VDC CLKXb FSXb CLKRb FSRb TP11 TP10 3.3V_D SCLK DGND 3.3V_D MCLK 3.3V_D SCLK DXa/DIN 0.1uF FS_1 DRa/DOUT 10uF FS_1 CLKXb 11 12 FSXb 13 14 15 16 130K SYNC_RESET* FSRb TP12 17 18 CLKRb SYNC_PWDN* 19 20 CNTLb...
- Page 24 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments AICDEVPLATEVM...
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