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Schematic (2 of 6)
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Schematic (6 of 6)
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Mode Selection Jumper Settings
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Edge Rate Control Jumper Settings
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SCAU050 - May 2012
Submit Documentation Feedback
CDCUN1208LP Evaluation Board
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List of Figures
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List of Tables
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Copyright © 2012, Texas Instruments Incorporated
Contents
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CDCUN1208LP Evaluation Board
User's Guide
SCAU050 - May 2012
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Summary of Contents for Texas Instruments CDCUN1208LP
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Page 1: Table Of Contents
Mode Selection Jumper Settings ..................Edge Rate Control Jumper Settings ..................Edge Rate Control Jumper Settings ......................Input Buffer Settings ......................Smart Mux Settings SCAU050 – May 2012 CDCUN1208LP Evaluation Board Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 2: Features
Words shown in bold italics in this document show the same name and label on the EVM board itself Figure 1. CDCUN1208 Evaluation Board CDCUN1208LP Evaluation Board SCAU050 – May 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 3: General Description
One of the device inputs includes a divider that provides divide values of /1, /2, /4, and /8. The device is offered in a 32 pin QFN package. The CDCUN1208LP is flexible and easy to use. The application configures the device by setting the state of certain pins at device power-up. Alternately, the application can configure the device via SPI/I C. -
Page 4: Using The Evm Ontrol Software
Using the EVM ontrol Software The graphical layout of the programming software is based on the functional structure of the CDCUN1208LP. Using the tool, the user can select Input type, Input Divider, Input MUX and Output type. IN1 and IN2 Reference Signal Type Selection... -
Page 5: Configuring The Board
Enable boxes need to be checked to enable the outputs individually. Configuring the Board The CDCUN1208LP is a programmable clock buffer with many options. The EVM was designed with the maximum flexibility so that the user can configure the EVM to operate in its desired mode. - Page 6 Configuring the Board www.ti.com CDCUN1208LP Evaluation Board SCAU050 – May 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
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Page 7: Mode Selection Jumper Settings
Configuring the Reference Inputs The CDCUN1208LP offers two inputs (IN1 and IN2). SMA J4 and J5 are dedicated for IN1 (IN1p and IN1n) and SMA J7 and J8 are dedicated for IN2 (IN2p and IN2n). Both inputs in the EVM are ac-coupled as default by using coupling capacitors (C231 and C232 for IN1 and C235 and C236 for IN2). -
Page 8: Input Buffer Settings
Place the jumpers in the Headers (J14/J15/J20/J21) and place series resistors if needed LVDS Outputs – Do not use jumpers on the Headers (J14/J15/J20/J21) LVCMOS Outputs – Remove all 50 Ω CDCUN1208LP Evaluation Board SCAU050 – May 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 9: Cdcun1208Lp Evm Board Schematics
4.7k 4.7k 4.7k 4.7k S2,S3 = 0,0 = Aries LAB EVM R169 R169 pull-up power +3V3 R170 R170 Figure 3. Schematic (1 of 6) SCAU050 – May 2012 CDCUN1208LP Evaluation Board Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... - Page 10 C233 C223 C223 C222 C222 C227 C227 0.01uF 0.01uF 0.01uF 0.01uF 4.7uF 4.7uF 10uF 10uF MODE VDDO1 OTTP Figure 4. Schematic (2 of 6) CDCUN1208LP Evaluation Board SCAU050 – May 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
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Page 11: Schematic (3 Of 6)
Header T 4pin Header T 4pin R187 R187 0p9V C297 C297 1p2V 49.9 49.9 R186 R186 JMP8 JMP8 Figure 5. Schematic (3 of 6) SCAU050 – May 2012 CDCUN1208LP Evaluation Board Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 12: Schematic (4 Of 6)
49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 HSCL_Y2 HSCL_Y4 C249 C249 C250 C250 0.1uF 0.1uF 0.1uF 0.1uF Figure 6. Schematic (4 of 6) CDCUN1208LP Evaluation Board SCAU050 – May 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 13: Schematic (5 Of 6)
49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 HSCL_Y6 HSCL_Y8 C262 C262 C261 C261 0.1uF 0.1uF 0.1uF 0.1uF Figure 7. Schematic (5 of 6) SCAU050 – May 2012 CDCUN1208LP Evaluation Board Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... - Page 14 2p5V GND/HS GND/HS 1p8V TPS76701QPWP TPS76701QPWP Header T 4pin Header T 4pin MANY VIAS with Heat Sink PS_RESET Figure 8. Schematic (6 of 6) CDCUN1208LP Evaluation Board SCAU050 – May 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
- Page 15 Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory authorities, which is responsibility of user including its acceptable authorization.
- Page 16 FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
- Page 17 Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan. Texas Instruments Japan Limited (address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan http://www.tij.co.jp...
- Page 18 FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2012, Texas Instruments Incorporated...
- Page 19 Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory authorities, which is responsibility of user including its acceptable authorization.
- Page 20 FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
- Page 21 Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan. Texas Instruments Japan Limited (address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan http://www.tij.co.jp...
- Page 22 FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2012, Texas Instruments Incorporated...
- Page 23 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
- Page 24 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments CDCUN1208LPEVM...
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