Introduction
7
SNLU262 – December 2019
Copyright © 2019, Texas Instruments Incorporated
DP83826EVM User’s Guide
2.2
Operation – Quick Setup
2.2.1
Power Supply
The DP83826EVM power is supplied by the 5-12V input connection in
. 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 3. DP83826EVM Power Headers
Figure 4. DP83826EVM Power Inputs
In the case the user would like to power the EVM from external sources, J7, J8, and J9, VDDA, VDDIO
and the fiber optic transceivers respectively, can be removed and supplied power at pin 2 for all three
jumpers. J23 can also be used to supply an external 5V to the USB and MSP430.