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Related Manuals for Texas Instruments TLV320AIC20KEVM
Summary of Contents for Texas Instruments TLV320AIC20KEVM
- Page 1 TLV320AIC20K/24KEVM User’s Guide April 2005 Data Acquisition Products SLAU088A...
- 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 © 2005, Texas Instruments Incorporated...
- Page 5 How to Use This Manual Preface Read This First About This Manual This users guide describes the operation and use of the TLV320AIC20K codec family. A complete circuit descriptiion, schematic diagram, and bill of materials are also included. How to Use This Manual This document contains the following chapters: Chapter 1—EVM Overview Chapter 2—Digital Interface...
- Page 6 Related Documentation From Texas Instruments Related Documentation From Texas Instruments To obtain a copy of any of the following TI documents, call the Texas Instruments Literature Response Center at (800) 477-8924 or the Product Information Center (PIC) at (972) 644-5580. When ordering, identify this booklet by its title and literature number.
- Page 7 Contents Contents EVM Overview ..............Digital Interface .
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Page 8: Table Of Contents
Contents Figures 1−1 ............... . 4−1 EVM Captured Signals . - Page 9 Chapter 1 EVM Overview This user’s guide provides support for the following EVMs: TLV320AIC20KEVM TLV320AIC24KEVM Figure 1−1. EVM The EVM is split into two complementary halves as shown in Figure 1−1. SLAVE CODEC MASTER CODEC EVM Overview...
- Page 11 Chapter 2 Digital Interface The digital signals required to operate this codec originate from the 40-pin connector—J21. There are two methods to drive the digital interface: Create a custom interface between the codec EVM and the host system. Alternatively, if a TI DSK (DSP starter kit) is the host system, a develop- ment platform (AICDEVPLAT EVM) is available from TI.
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Page 12: Pinout For 40-Pin Connector
Codec-to-Platform 2.1 Codec-to-Platform The TLV320AIC20K and 24K mate with the development platform via a 40-pin Samtec connector. The mating connector (Samtec part number, TSM-120-01-T-DV-P) is used on the development platform to provide the electrical connections necessary. Consult Samtec at www.samtec.com 1−800−SAMTEC−9 for more information. - Page 13 Codec-to-Platform Table 2−1. Pinout for 40-Pin Connector (Continued) Pin Number Signal Description J21.33 3.3V_A_DRV Output driver supply 3.3 V J21.34 AGND Analog ground J21.35 3.3V_A_DRV Output driver supply 3.3 V J21.36 AGND Analog ground J21.37 3.3V_A Analog 3.3 V J21.38 AGND Analog ground J21.39...
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Page 14: 2.2 Jumper Options
Jumper Options 2.2 Jumper Options There are eight jumpers on the board that can be configured in various ways, depending upon the user’s requirements. Their functions are briefly presented in Table 2−2: Table 2−2. Jumper Options Jumper Function Gives users the option of disconnecting the 3.3-V driver ground from the regular analog ground Manages FSD from the master. -
Page 15: Single Master Only Jumper Settings
Jumper Options 2.2.2 Single Master Only This configuration applies to EVM1 only. When a single codec is to be used in master mode, U1 is always the master codec. Follow the jumper settings detailed in Table 2−4 for this condition. Table 2−4. -
Page 16: Analog Interface Connectors
Chapter 3 Analog Interface Table 3−1 indicates the applicable connectors for each codec. In order to enable a wide range of sources and loads to be connected to the codecs, screw terminals have been used wherever possible. Table 3−1. Analog Interface Connectors TLV320AIC20K TLV320AIC24K Master... - Page 18 Chapter 4 EVM Operation The EVM is shipped from the factory in master/slave cascade mode. To check if the EVM is working properly, simply install the EVM onto the development platform and apply power to the DSK. The EVM should begin working immediately.
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Page 19: Evm Captured Signals
The captured signals are shown in Figure 4−1. Figure 4−1. EVM Captured Signals SCLK... - Page 20 R6 R7 R8 10 kΩ R1 R2 Resistor 10.0-kΩ 1/10-W Panasonic ERJ-6ENF1002V 1% 0805 SMD U1 U2 * IC CODEC dual-channel Texas Instruments TLV320AIC20KIPFB PROG LP 48-TQFP * Alternate IC CODEC dual-channel Texas Instruments TLV320AIC24KIPFB PROG LP 48-TQFP TLV320AIC20 PWB...
- Page 21 Used Value Ref Des Description Vendor Part number J1 J2 J3 J1 J2 J3 2 Terminal screw connector 2 Terminal screw connector Lumberg Lumberg KRMZ2 KRMZ2 J4 J5 J8 J4 J5 J8 J9 J10 J11 J9 J10 J11 J12 J13 J14 J15 J16 J20 161−3504...
- Page 22 Appendix A TLV320AIC20K/24K EVM Schematic The TLV320AIC20K/24KEVM schematics are provided on the following pages. TLV320AIC20K/24K EVM Schematic...
- Page 23 Revision History ECN Number Approved Analog_IO 2xAIC20 Analog_IO 2xAIC20 12500 TI Boulevard. Dallas, Texas 75243 Title: System Block Engineer: Joe Purvis DOCUMENTCONTROL # REV: 6442568 Drawn By: Joe Purvis FILE: DATE: 10-Feb-2005 SIZE: AIC20 CODEC SHEET:...
- Page 24 Revision History ECN Number Approved 3.3V_D 3.3V_D 0.1uF 0.01uF 0.1uF 0.01uF DGND DGND 1.8V_D 1.8V_D LCDAC_b AGND LCDAC HNSO-_b GBL_SYNC_RESET* HNSO- RESET* 0.1uF 0.01uF 0.1uF 0.01uF HNSO+_b GBL_MCLK HNSO+ MCLK HNSI-_b DGND DGND DGND HNSI- HNSI+_b GBL_SCLK HNSI+ SCLK 3.3V_D 3.3V_A FS_2 AVDD...
- Page 25 Revision History ECN Number Approved MICBIASa HDSI-_b 10uF 0.1uF HDSI+_b AGND 0.1uF HDSI+_a HNSI+_a 0.1uF 0.1uF HDSO-_b HDSI-_a HNSI-_a 0.1uF 0.1uF HDSO+_b CIDI+_a LINEO-_a CIDI+_b LINEO-_b CIDI-_a LINEO+_a CIDI-_b LINEO+_b LINEO-_b AGND AGND LCDAC_a AGND LINEO+_b LCDAC_b AGND LINEI-_a LINEI-_b 0.1uF LINEI+_a 0.1uF...
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