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SAMA5D3x-EK User Guide [USER GUIDE]
11180B–ATARM–29-Oct-13
6.
Optional Display Module (DM) Board
6.1
DM Board Overview
The DM board integrates a 5.0” TFT LCD module with touchscreen, as well as four QTouch pads.
Figure 6-1.
DM Board
6.1.1
Equipment List
The DM board components are:
One 5.0” TFT LCD module
LCD back light driver
3.3V regulator
QTouch device
1-wire device
6.1.2
Function Blocks
6.1.2.1
3.3V Regulator
The 5-0_WVGA_R_AEA-DM Board features its own LDO for local power regulation. It accepts DC 5V power from 500
mA high-side power switch on EK and outputs a reg3.3V to most other circuits on the board.
Figure 6-2.
DM Power Supply
500mA capability
SELCONFIG
5V_INTER
3V3_LCD
C13
100n
C12
10u
C11
100n
C15
2.2u
C10
10u
MN3
SPX3819
VIN
1
GND
2
EN
3
BYP
4
VOUT
5