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DS91M125
125 MHz 1:4 M-LVDS Repeater with
LVDS Input Evaluation Kit
USER MANUAL
Part Number: DS91M125EVK NOPB
For the latest documents concerning these products and evaluation kit, visit lvds.national.com. Schematics and
gerber files are also available at lvds.national.com
August 11, 2008
1
Rev. 1.0
© 2008, National Semiconductor Corp.
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Related Manuals for National Semiconductor DS91M125
Summary of Contents for National Semiconductor DS91M125
- Page 1 LVDS Input Evaluation Kit USER MANUAL Part Number: DS91M125EVK NOPB For the latest documents concerning these products and evaluation kit, visit lvds.national.com. Schematics and gerber files are also available at lvds.national.com August 11, 2008 Rev. 1.0 © 2008, National Semiconductor Corp.
- Page 2 Overview The purpose of this document is to familiarize you with the DS91M125 evaluation board, suggest the test setup procedures and instrumentation, and to guide you through some typical measurements that will demonstrate the performance of the device. The board enables the user to examine performance and all functions of the DS91M125 as a standalone device.
- Page 3 3. Enable one of the U2 driver outputs. This is accomplished by setting the DE0-3 pin to VDD (JP3-6). 4. Connect a signal source to the driver input (DI+, DI-). The signal needs to be an LVDS/M- LVDS/CML/LVPECL compliant signal. Refer to the DS91M125 datasheet for the receiver input compatibility.
- Page 4 Figure 3 shows an eye diagram acquired at the output of the DS91M125 driver loaded with a 100-ohm resistor. The generator connected to the driver input simulated a 100 Mbps PRBS-7 NRZ. Figure 3 – DS91M125 Output August 11, 2008 Rev.
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Page 7: Bill Of Materials
PL Number: Rev: Rev Date: PL Status: Rev By: ENERCON - TITLE: BILL OF MATERIALS NATIONAL SEMICONDUCTOR Z3252-01 04/30/08 Released PCBA, DS91M125EVK, ROHS Main Product: Responsible Eng/Mgr: Creator: Creation Date: DS91M125 PCBA, DS91M125EVK, ROHS Arlene Fox 03/14/08 Item Part Type... - Page 8 PL Number: Rev: Rev Date: PL Status: Rev By: ENERCON - TITLE: BILL OF MATERIALS NATIONAL SEMICONDUCTOR Z3252-01 04/30/08 Released PCBA, DS91M125EVK, ROHS Main Product: Responsible Eng/Mgr: Creator: Creation Date: DS91M125 PCBA, DS91M125EVK, ROHS Arlene Fox 03/14/08 Notes: DO NOT STUFF:...
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Page 19: Important Notice
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.