
Evaluation Kit Hardware
4.4
4.4.1
4.4.2
4.4.3
4.4.3.1
Optional Display Module (DM) Board Hardware
DM Board Overview
The optional DM board carries a 5.0" TFT LCD module with touch screen. The DM board also carries
four QTouch pads.
Figure 4-54. DM Board Layout
Equipment List
The list of the DM board components follows:
One 5.0" TFT LCD module
LCD Back light driver
3.3V regulator
QTouch device
1-Wire device
Function Blocks
3.3V Regulator
The DM Board features its own LDO for local power regulation. It accepts DC 5V power from a 500 mA
high-side power switch on the EK and outputs a regulated +3.3 V to most other circuits on the board.
Figure 4-55. DM Board Power Supply
5V_INTER
MN3
3V3_LCD
1
VIN
VOUT
5
SELCONFIG
2
3
GND
EN
BY P
4
C10
10u
C11
100n
C12
C15
SPX3819
10u
C13
2.2u
500mA capability
100n
4-78
11115A–ATARM–27-Jul-11
Evaluation Kit (EK) User Guide