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Summary of Contents for Texas Instruments DEM-DSD1796
- Page 1 DEM-DSD1796/PCM1795/PCM1796/PCM1798 DSD1796/PCM1795/PCM1796/PCM1798 Evaluation Module User's Guide Literature Number: SLEU057A September 2004 – Revised May 2009...
- Page 2 SLEU057A – September 2004 – Revised May 2009 Submit Documentation Feedback...
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Page 3: Table Of Contents
Contents ..........................Preface ........................ Description ....................Functional Block Diagram ........................ EVM Features ....................... System Requirements ................... Electrostatic Discharge Warning ................Function Control for DAI Interface Format ......................Reset Operation ..................SW006 Operation Control for DAC ......................Jumper Connection ....................Demonstration Software ............. - Page 4 List of Figures ............DEM-DSD1796/PCM1795/PCM1796/PCM1798 Block Diagram ..................... DEM-DAI/ASDAC Silkscreen .................... DEM-DAI/ASDAC (Top View) ..................DEM-DAI/ASDAC (Bottom View) ....................DEM-AS/CDAC Silkscreen ....................DEM-AS/CDAC (Top View) ................... DEM-AS/CDAC (Bottom View) ......DEM-DAI/ASDAC Analog Section (Sockets for Daughterboard and Low-Pass Filter) ................
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Page 5: Preface
If You Need Assistance If you have questions regarding either the use of this evaluation module or the information contained in the accompanying documentation, please contact the Texas Instruments Product Information Center at (972) 644–5580 or visit the TI web site at www.ti.com. - Page 6 Trademarks www.ti.com Trademarks All trademarks are the property of their respective owners. Read This First SLEU057A – September 2004 – Revised May 2009 Submit Documentation Feedback...
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Page 7: Description
SLEU057A – September 2004 – Revised May 2009 Description The DEM-DSD1796/PCM1795/PCM1796/PCM1798 is an evaluation fixture for the DSD1796/PCM1795/ PCM1796/PCM1798 series of 24-bit, 192-kHz sampling stereo DACs. This EVM provides all necessary connectors and circuitry for interfacing to audio test systems and commercial audio equipment. -
Page 8: Functional Block Diagram
Figure 1-1. DEM-DSD1796/PCM1795/PCM1796/PCM1798 Block Diagram EVM Features The DEM-DSD1796/PCM1795/PCM1796/PCM1798 series of stereo DACs consist of a DAI (S/PDIF) section that uses a DSD1796/PCM1795/PCM1796/PCM1798 DAC section, a differential current/voltage (I/V) section, and a balanced amplifier with a post-low-pass filter (LPF) section. -
Page 9: System Requirements
– DEM-PCM1798: for PCM1798 Electrostatic Discharge Warning Many of the components on the DEM-DSD1796/PCM1795/PCM1796/PCM1798 EVM 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. -
Page 10: Sw006 Operation Control For Dac
SW006 Operation Control for DAC www.ti.com SW006 Operation Control for DAC Switch SW006 is the register set and reset control for the PCM1796 and DSD1796. The RESET section of the switch must be set to H except to perform a reset operation. Table 1-2 shows the options for SW006. -
Page 11: Schematics, Pcb Layout, And Bill Of Materials
Chapter 2 SLEU057A – September 2004 – Revised May 2009 Schematics, PCB Layout, and Bill of Materials This chapter provides the DEM-DAI/ASDAC and the DEM-AS/CDAC printed circuit boards and schematics. The bill of materials (BOM) is included for component and manufacturer reference. Note: Board layouts are not to scale. -
Page 12: Dem-Dai/Asdac Printed Circuit Board Layout
DEM-DAI/ASDAC Printed Circuit Board Layout www.ti.com DEM-DAI/ASDAC Printed Circuit Board Layout Figure 2-1 through Figure 2-3 illustrate the printed circuit board (PCB) layout for the DEM-DAI/ASDAC. Figure 2-1. DEM-DAI/ASDAC Silkscreen Schematics, PCB Layout, and Bill of Materials SLEU057A – September 2004 – Revised May 2009 Submit Documentation Feedback... -
Page 13: Dem-Dai/Asdac (Top View)
DEM-DAI/ASDAC Printed Circuit Board Layout www.ti.com Figure 2-2. DEM-DAI/ASDAC (Top View) SLEU057A – September 2004 – Revised May 2009 Schematics, PCB Layout, and Bill of Materials Submit Documentation Feedback... -
Page 14: Dem-Dai/Asdac (Bottom View)
DEM-DAI/ASDAC Printed Circuit Board Layout www.ti.com Figure 2-3. DEM-DAI/ASDAC (Bottom View) Schematics, PCB Layout, and Bill of Materials SLEU057A – September 2004 – Revised May 2009 Submit Documentation Feedback... -
Page 15: Dem-As/Cdac Printed Circuit Board Layout
DEM-AS/CDAC Printed Circuit Board Layout www.ti.com DEM-AS/CDAC Printed Circuit Board Layout Figure 2-4 through Figure 2-6 illustrate the PCB layout for the DEM-AS/CDAC. Figure 2-4. DEM-AS/CDAC Silkscreen Figure 2-5. DEM-AS/CDAC (Top View) SLEU057A – September 2004 – Revised May 2009 Schematics, PCB Layout, and Bill of Materials Submit Documentation Feedback... -
Page 16: Dem-As/Cdac (Bottom View)
DEM-AS/CDAC Printed Circuit Board Layout www.ti.com Figure 2-6. DEM-AS/CDAC (Bottom View) Schematics, PCB Layout, and Bill of Materials SLEU057A – September 2004 – Revised May 2009 Submit Documentation Feedback... -
Page 17: Dem-Dai/Asdac Schematics
DEM-DAI/ASDAC Schematics www.ti.com DEM-DAI/ASDAC Schematics The schematic for the sections of the DEM-DAI/ASDAC are shown in Figure 2-7 through Figure 2-9. V CC 1 R109 200 CN101 CN102 V DD XB 3 7 20 XB 3 7 20 C105 8200pF (NC) V CC MUTE... -
Page 18: Dem-Dai/Asdac Digital Section (Digital Audio Interface)
DEM-DAI/ASDAC Schematics www.ti.com V DD CN003 57LE 40360 7700(D3) C014 0.1 uF U006 74VHC244 SW006 V CC DSS104 [RST ] [MDO] [MDI] [MC] [ML] RA001 47k x5 V CC 2 CN007 R003 XB-3-7-20 CN002 U002 C011 0.1 uF FFC 2BMEP1 D001 U004 74HCT32... -
Page 19: Dem-As/Cdac Schematics
DEM-AS/CDAC Schematics www.ti.com DEM-AS/CDAC Schematics Figure 2-10 shows the schematic for the sections of the DEM-AS/CDAC. C011 2700pF V cc 1 R005 C013 V cc 1 10uF/16V U002 NJM5534 (R003) C010 C008 (NC) (R001) C012 C014 Jumper 10uF 22pF MUTE 10uF/16V C009 /16V... -
Page 20: Component Lists
Component Lists www.ti.com Component Lists 2.5.1 DEM-AS/CDAC_96/98 Parts List Table 2-1 lists the bill of materials for the DEM-AS/CDAC_96/98. Table 2-1. Bill of Materials RefDes Item Value Mfr Part No Manufacturer Remarks 10 µF/16 V C001, C003, C008, AL ELE capacitor ROA–16V100M ELNA C013, C014, C017,... - Page 21 Component Lists www.ti.com Table 2-2. Bill of Materials (continued) RefDes Item Value Mfr Part No Manufacturer Remarks FIL001 Filter Not mounted CN003 L-type connector 57LE40360-7700(D3) Yamaichi CN004 48-pin connector FFC-48BMEP1 Yamaichi CN002, CN058, 2-pin connector FFC-2BMEP1 Yamaichi JP002 CN104 RCA connector (red) LPR6520-0802 RCA connector CN103...
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Page 22: Revision History
Revision History www.ti.com Revision History Changes from Original (September, 2004) to A Revision ....................Page • ..................Updated document format to current standards • ................Added PCM1795 to devices relevant to this user guide NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Revision History SLEU057A –... -
Page 23: Important Notices
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. - Page 24 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.
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