DS91M047 125 MHz Quad M-LVDS Driver Evaluation Kit USER MANUAL Part Number: DS91M047EVK 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 June 17, 2008 Rev. 1.0 1 © 2008, National Semiconductor Corp.
Overview The purpose of this document is to familiarize you with the DS91M047 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 DS91M047 as a standalone device. The DS91M047 is a high-speed quad M-LVDS differential line driver designed for multipoint applications with multiple drivers or receivers.
DS91M047 Evaluation in a Point-to-Point Link The following is a recommended procedure for using and evaluating the DS91M047EVK. Figure 2 depicts a typical setup and instrumentation used. 1. Select a single DS91M047 evaluation board. 2. Apply the power to the board (3.3 V typical) between J1 and J2 power tabs, observe the value of ICC, and compare it with the expected value (refer to the datasheet) to ensure that the devices are functional. 3. Enable U1 driver outputs.
Figure 3 shows an eye diagram acquired at the output of the DS91M047 driver loaded with a 100-ohm resistor. The generator connected to the driver input simulated a 100 Mbps PRBS-7 NRZ. Figure 3 – DS91M047 Output June 17, 2008 Rev. 1.0 4 © 2008, National Semiconductor Corp.
ENERCON - BILL OF MATERIALS TITLE: Main Product: 1 PCB Rev: Rev By: Rev Date: PL Number: Z3250-01 1 BJ Responsible Eng/Mgr: DS91M047 PCBA, DS91M047EVK, ROHS Item Part Type NATIONAL SEMICONDUCTOR PCBA, DS91M047EVK, ROHS Part Number/Value Mfg NoSub Description Qty PL Status: Released Creator: Creation Date: Arlene Fox 03/13/08 Ref Des SMT 04/30/08 Notes 1 Rev P-06540R0 ENERCON 0 Z3211-04 ENERCON LABEL, MADE IN U.S.A.
ENERCON - BILL OF MATERIALS TITLE: Main Product: NATIONAL SEMICONDUCTOR PCBA, DS91M047EVK, ROHS PL Number: Rev: Rev By: Rev Date: Z3250-01 1 Responsible Eng/Mgr: DS91M047 PCBA, DS91M047EVK, ROHS BJ 04/30/08 PL Status: Released Creator: Creation Date: Arlene Fox 03/13/08 Notes: DO NOT STUFF: U2 M1-10 JP3,4,5,6 R1-15 T1-2,7,15,17,19,21,23,3,11,12,16,18,20,22,24 J3,4 C5,7,8,9,10 SMA13-22 10:30:50 AM, 06/17/08 Confidential and Proprietary.
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