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Texas Instruments HPL-D SLLU064A manual 2. 4x4 Crosspoint Switch EVM, Overview, A/W #

Models: HPL-D SLLU064A

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1 Overview

Figure 1-2 shows the 4x4 crosspoint switch EVM (part number

SN65LVDS125A or SN65LVDS250). The EVM comes with either the

SN65LVDS125A or SN65LVDS250 installed and a copy of the data sheet.

The latest version of the data sheet is also available from www.ti.com.

A/W # 6456526

SN65LVDS125A

SN65LVDS250

4X4 Crosspoint Switch EVM

Figure 1-2. 4x4 Crosspoint Switch EVM

1-3

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Texas Instruments HPL-D SLLU064A 2. 4x4 Crosspoint Switch EVM, Overview, 2 shows the 4x4 crosspoint switch EVM part number

Contents

January SLLU064A4x4 Crosspoint Switch EVM Users GuideApplications IMPORTANT NOTICEProducts EVM IMPORTANT NOTICE EVM WARNINGS AND RESTRICTIONS About This Manual How to Use This ManualRead This First PrefaceFCC Warning Figure 2-2. Termination for Interfacing LVDS, CML, or LVPECL Drivers ContentsFigures ContentsTables TablesChapter 1 Overview1 Overview 1.1 Sample Functional ConfigurationsSN65LVDS125A SN65LVDS250 4X4 Crosspoint Switch EVM Figure 1-2. 4x4 Crosspoint Switch EVMFigure 1-2 shows the 4x4 crosspoint switch EVM part number SN65LVDS125A or SN65LVDS250 installed and a copy of the data sheet1 Overview 1.2 Signal PathsFigure 1-3. 4x4 Crosspoint Switch Signal Paths Chapter 2 Setup and Required Equipment2.1 Applying an Input SCOPE internally terminated 50 Ω to GND 2 Setup and Required Equipment2 Setup and Required Equipment Table 2-1 Crosspoint Function TableFigure 2-2. Termination for Interfacing LVDS, CML, or LVPECL Drivers Note Power Supply 2.2 Observing an Output2.3 Typical Test Results 2 Setup and Required Equipment2 Setup and Required Equipment Figure 2-3. Typical Test Results2 Setup and Required Equipment EVM Construction 3 EVM ConstructionChapter Figure 3-1. 4x4 Crosspoint Switch EVM Schematic 3.1 Schematic3 EVM Construction Figure 3-2. 4x4 Crosspoint Switch EVM Board Layout3.2 Board Layout Patterns 4X4 Crosspoint Switch EVMFigure 3-3. Layer 1-Signal Plane 3 EVM Construction Figure 3-4. GND Plane Figure 3-5. Layer 3-VccFigure 3-6. Layer 4-Vcc01 Plane Figure 3-7. Layer 5-GND Plane 3 EVM Construction Figure 3-8. Layer 6-GND/Signal Plane3.3 PCB Fabrication Requirements and Stack Up 3 EVM Construction 3.4 Bill of MaterialsTable 3-2. Bill of Materials for SN65LVDS125A / SN65LVDS250 EVM