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Texas Instruments HPL-D SLLU064A manual Overview, Chapter

Models: HPL-D SLLU064A

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Chapter 1

1 Overview

This chapter provides a high-level description of the 4x4 crosspoint switch EVM mounted with either a SN65LVDS125A, 4x4 1.5-Gbps or a SN65LVDS250, 4x4 2.5-Gbps crosspoint switch.

Topic		Page
1.1	Sample Functional Configurations	1-2
1.2	Signal Paths	1-4

1-1

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Texas Instruments HPL-D SLLU064A manual Overview, Chapter

Contents

4x4 Crosspoint Switch EVM SLLU064AUsers Guide JanuaryIMPORTANT NOTICE ProductsApplications EVM IMPORTANT NOTICE EVM WARNINGS AND RESTRICTIONS Read This First How to Use This ManualPreface About This ManualFCC Warning Figures ContentsContents Figure 2-2. Termination for Interfacing LVDS, CML, or LVPECL DriversTables TablesChapter 1 Overview1 Overview 1.1 Sample Functional ConfigurationsFigure 1-2 shows the 4x4 crosspoint switch EVM part number Figure 1-2. 4x4 Crosspoint Switch EVMSN65LVDS125A or SN65LVDS250 installed and a copy of the data sheet SN65LVDS125A SN65LVDS250 4X4 Crosspoint Switch EVM1.2 Signal Paths Figure 1-3. 4x4 Crosspoint Switch Signal Paths1 Overview 2 Setup and Required Equipment 2.1 Applying an InputChapter SCOPE internally terminated 50 Ω to GND 2 Setup and Required EquipmentTable 2-1 Crosspoint Function Table Figure 2-2. Termination for Interfacing LVDS, CML, or LVPECL Drivers2 Setup and Required Equipment 2.3 Typical Test Results 2.2 Observing an Output2 Setup and Required Equipment Note Power Supply2 Setup and Required Equipment Figure 2-3. Typical Test Results2 Setup and Required Equipment 3 EVM Construction ChapterEVM Construction Figure 3-1. 4x4 Crosspoint Switch EVM Schematic 3.1 Schematic3.2 Board Layout Patterns Figure 3-2. 4x4 Crosspoint Switch EVM Board Layout4X4 Crosspoint Switch EVM 3 EVM ConstructionFigure 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 3.4 Bill of Materials Table 3-2. Bill of Materials for SN65LVDS125A / SN65LVDS250 EVM3 EVM Construction