SPRUJG5 January   2025

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1.     Preface: Read This First
      1. 1.1.1 If You Need Assistance
    2. 1.1 Introduction
    3. 1.2 Kit Contents
    4. 1.3 Device Information
  6. 2Hardware
    1. 2.1 Component Identification
    2. 2.2 Power Requirements
      1. 2.2.1 Power Tree
    3. 2.3 Functional Block Diagram
    4. 2.4 Header Information
    5. 2.5 Test Points
    6. 2.6 Interfaces
      1. 2.6.1 Ethernet Interface
        1. 2.6.1.1 Industrial Ethernet PHY
        2. 2.6.1.2 Industrial Ethernet PHY Strapping Resistors
        3. 2.6.1.3 LED Indication in RJ45 Connector
        4. 2.6.1.4 Multi-Connector Addressing
    7. 2.7 Integration Guide
      1. 2.7.1 Board Dimensions
      2. 2.7.2 Installation
  7. 3Hardware Design Files
  8. 4Additional Information
    1. 4.1 Trademarks
  9. 5References
    1. 5.1 Reference Documents
  10. 6Revision History

2.2.1 Power Tree

The DP83867-EVM-AM power is supplied from the main EVM via the DF40GB connector.

3.3V (VCC_3V3_SYS) is connected to pin 44 and 46 on the DF40GB connector, and is passed to the source input, VDDIO, on the DP83867IR Industrial Ethernet PHY.

2.5V (VDD_2V5) is connected to pin 4 and 6 on the DF40GB connector, and is passed as input to the LDO (TLV75510PDQNR) which outputs 1.0V (VDD_1V0). VDD_2V5 is connected to VDDA_2P5 inputs and VDD_1V0 is connected to VDD1P0 inputs of the Ethernet PHY.

Figure 2-3 shows the power connections of DP83867-EVM-AM.
AUDIO-AM275-EVM AUDIO-AM62D-EVM Power Tree Figure 2-3 Power Tree