SNLU262A december   2019  – june 2023 DP83826I

 

  1.   1
  2.   DP83826EVM User’s Guide
  3.   Trademarks
  4. 1Definitions
  5. 2Introduction
    1. 2.1 Key Features
    2. 2.2 Operation – Quick Setup
      1. 2.2.1 Power Supply
      2. 2.2.2 Power Inputs
      3. 2.2.3 Software
        1. 2.2.3.1 MSP430 Driver
        2. 2.2.3.2 USB-2-MDIO Software
  6. 3Board Setup Details
    1. 3.1 Block Diagram
    2. 3.2 EVM High Level Summary
  7. 4Configurations Options
    1. 4.1 MDIO Register Access
  8. 5EMI Results
    1. 5.1 Setup
    2. 5.2 Results
  9. 6DP83826EVM Schematics
  10. 7DP83826EVM BOM
  11. 8Revision History

2.2.1 Power Supply

The DP83826EVM power is supplied by the 5-12V input connection in Figure 2-3. Single supply operation uses on-board LDOs to generate the voltages required for operating various sections of the EVM. Power can also be supplied externally to individual voltage rails. The micro-USB supplies power to the on-board LDOs that power all microcontroller related components.

Note:

Before supplying power at the 5-12V input, ensure the correct shunts are added to the appropriate headers to properly operate the on-board LDOs as seen in Figure 2-4.

GUID-E7D9806A-A923-45FB-A68A-D6E5DD2F089D-low.pngFigure 2-3 DP83826EVM Power Headers