phyCARD-M [PCA-A-M1-xxx]
96
©
PHYTEC Messtechnik GmbH 2010 L-750e_1
17.3.7.2
Display Power Connector (X32)
The display power connector X32 (AMP microMatch 8-188275-2)
provides all supply voltages needed to supply the display and a
backlight.
Pin number Signal name
Description
1 GND Ground
2
VCC3V3
3,3V power supply display
3 GND Ground
4
VCC5V
5V power supply display
5 GND Ground
6
VCC5V
5V power supply display
7 GND Ground
8
VCC5V
5V power supply display
9 GND Ground
10
LS_BRIGHT
PWM brightness output
11
VCC12V_BL
12V Backlight power supply
12
VCC12V_BL
12V Backlight power supply
Table 38:
LVDS power connector X32 signal description
The PWM signal at pin 10 can be used to control the brightness of a
display's backlight. It is generated by an LED dimmer. The LED
dimmer is connected to the I
2
C bus at address
11
0xC0 (write) and
0xC1 (read).
To make VCC12V_BL available at X32 jumper JP2 must be closed.
11
: Default address. Jumper J2 allows to select a 0xC2 (write) and 0xC3 (read) alternatively
(refer to
Table 32
).