TIDUF94
October 2024
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Key System Specifications
2
System Overview
2.1
Block Diagram
2.2
Design Considerations
2.3
Highlighted Products
2.3.1
DP83TC818S-Q1 (Automotive SPE PHY)
2.3.2
TPS7B8233-Q1 (3.3V Vsleep Ultra-Low-IQ Low-Dropout Regulator)
2.3.3
TPS74701-Q1 (1.0V Rail Low-Dropout Regulator)
2.3.4
CDC6CE025000-Q1 (BAW Oscillator)
2.3.5
TPS4H160-Q1 (High-Side Switch)
3
System Design Theory
3.1
Ethernet PHY
3.1.1
Ethernet PHY Power Supply
3.1.2
Ethernet PHY Clock Source
3.2
Power Coupling Network
3.2.1
High-Side Switch
4
Hardware, Software, Testing Requirements, and Test Results
4.1
Hardware Requirements
4.2
Software Requirements
4.3
Test Setup
4.4
Test Results
5
Design and Documentation Support
5.1
Design Files
5.1.1
Schematics
5.1.2
BOM
5.2
Tools and Software
5.3
Documentation Support
5.4
Support Resources
5.5
Trademarks
6
About the Author
Design Guide
4 × Automotive Ethernet PHY Expansion for 100/1000Base-T1 Reference Design for Jacinto 7 Processors