Texas Instruments HPL-D SLLU064A User Manual

January 2004 HPL-D SLLU064A4x4 Crosspoint Switch EVM User's G uide User's Guide

1 Overview 1-2 1.1 Sample Functional Configurations The 4x4 crosspoint switch is a fully non-blocking switch that provides flexibility in switch c

1 Overview 1-3 Figure 1-2 shows the 4x4 crosspoint switch EVM (part number SN65LVDS125A or SN65LVDS250). The EVM comes with either the SN65LVDS1

1 Overview 1-4 1.2 Signal Paths The signal paths on this EVM (see Figure 1-3) include: ❏❏❏❏ Sixteen edge-launch SMA connectors (J1–J16) for high-

2-1 Chapter 2 2 Setup and Required Equipment Both the SN65LVDS125A and the SN65LVDS250 LVDS driver output characteristics are compliant with the re

2 Setup and Required Equipment 2-2 DATA, DATAAmplitude: 400 mVOffset: 0.0 VDA T A, DA TAAmplitude: 400 mVOffset: 0.0 V`U11J18J20VTE RMGNDJ4J3J1J2J1

2 Setup and Required Equipment 2-3 Table 2-1 Crosspoint Function Table Output Channel 1 Output Channel 2 Output Channel 3 Output Channel 4 Co

2 Setup and Required Equipment 2-4 2.2 Observing an Output In order to minimize the parasitic capacitance in high-speed measurements (probe capac

2 Setup and Required Equipment 2-5 Figure 2-3. Typical Test Results.

2 Setup and Required Equipment 2-6

EVM Construction 3-1 Chapter 3 3 EVM Construction This chapter presents the schematics, board layouts, fabrication information, and the bill of mat

IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improv

3-2 3.1 Schematic Figure 3-1. 4x4 Crosspoint Switch EVM Schematic SN65LVDS125A or SN65LVDS250 U1

3 EVM Construction 3-3 3.2 Board Layout Patterns Figure 3-2. 4x4 Crosspoint Switch EVM Board Layout 4X4 Crosspoint Switch EVM SN65LVDS125A S

3-4 Figure 3-3. Layer 1–Signal Plane

3 EVM Construction 3-5 Figure 3-4. GND Plane Figure 3-5. Layer 3–Vcc

3-6 Figure 3-6. Layer 4–Vcc01 Plane Figure 3-7. Layer 5–GND Plane

3 EVM Construction 3-7 Figure 3-8. Layer 6–GND/Signal Plane

3-8 3.3 PCB Fabrication Requirements and Stack Up StackupSignal: Layer 1Notes: 1. PWB TO BE FABRICATED TO MEET OR EXCEED IPC-6012, CLASS 3 S

3 EVM Construction 3-9 3.4 Bill of Materials Table 3-2. Bill of Materials for SN65LVDS125A / SN65LVDS250 EVM Item 6456526-1 Qty 6456526-2 Qty

3 www.ti.comEVM IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being

EVM WARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of -0.7 V to 4 V and the output voltage range of -0.

iii Preface Read This First About This Manual This evaluation module (EVM) user’s guide describes the hardware, theory of operation, and use of the

iv Korea 080-551-2804 Malaysia 1-800-80-3973 Netherlands (English) +31 (0) 546 87 95 45 New Zealand 0800-446-934 Phillippines 1-800-765-7404 S

v Contents Read This First ...iii About

Tables vi Figure 3-6. Layer 4–Vcc01 Plane ......3-6 Figure 3-7. Layer 5

1-1 Chapter 1 1 Overview This chapter provides a high-level description of the 4x4 crosspoint switch EVM mounted with either a SN65LVDS125A, 4x4 1.