Texas Instruments HPL-D SLLU064A manual Sample Functional Configurations

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1 Overview

1.1 Sample Functional Configurations

The 4x4 crosspoint switch is a fully non-blocking switch that provides flexibility in switch configuration for the desired application.

A sample of various functions for which the EVMs can be configured is shown in Figure 1-1.

C o n f ig u ra tio n E x a m ple s

S 1 0

S 1 1

S 2 0

S 2 1

 

S 1 0

S 1 1

S 2 0

S 2 1

0

0

0

1

 

0

0

0

0

S 3 0

S 3 1

S 4 0

S 4 1

 

S 3 0

S 3 1

S 4 0

S 4 1

1

0

1

1

 

0

0

0

0

1 A

 

 

 

1 Y

1 A

 

 

 

1 B

 

 

 

1 Z

1 B

 

 

 

2 A

 

 

 

2 Y

 

 

 

 

2 B

 

 

 

2 Z

 

 

 

 

3 A

 

 

 

3 Y

 

 

 

 

3 B

 

 

 

3 Z

 

 

 

 

4 A

 

 

 

4 Y

 

 

 

 

4 B

 

 

 

4 Z

 

 

 

 

1Y

1Z

2Y

2Z

3Y

3Z

4Y

4Z

S 1 0

S 1 1

S 2 0

S 2 1

0

0

0

0

S 3 0

S 3 1

S 4 0

S 4 1

1

0

1

0

1 A

1 B

3 A

3 B

1 Y

1 Z

2 Y

2 Z

3 Y

3 Z

4 Y

4 Z

S 1 0

S 1 1

S 2 0

S 2 1

1

1

1

1

S 3 0

S 3 1

S 4 0

S 4 1

0

0

0

0

1 A

 

 

 

1 B

 

 

 

4 A

 

 

 

4 B

 

 

 

1Y

1Z

2Y

2Z

3Y

3Z

4Y

4Z

Figure 1-1. Sample Functional Configurations of the 4x4 Crosspoint Switch

1-2

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Contents Users Guide Important Notice EVM Important Notice EVM Warnings and Restrictions Read This First About This ManualFCC Warning Contents FiguresTables Overview Sample Functional Configurations X4 Crosspoint Switch EVM Signal Paths X4 Crosspoint Switch Signal PathsSetup and Required Equipment Applying an InputSetup and Required Equipment Termination for Interfacing LVDS, CML, or Lvpecl Drivers Observing an Output Typical Test ResultsTypical Test Results Setup and Required Equipment EVM Construction Schematic X4 Crosspoint Switch EVM SchematicX4 Crosspoint Switch EVM Board Layout Board Layout PatternsLayer 1-Signal Plane GND Plane Layer 4-Vcc01 Plane Layer 6-GND/Signal Plane PCB Fabrication Requirements and Stack Up Bill of Materials Bill of Materials for SN65LVDS125A / SN65LVDS250 EVM