Rev 2.0
Page 66 of 164
Generic Qseven Carrier Board Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
14
CLKIN-
Output
LVDS
LVDS primary channel differential
clock negative.
Connected to 121
st
Pin of Qseven
MXM Connector.
15
CLKIN+
Output
LVDS
LVDS primary channel differential
clock positive.
Connected to 119
th
Pin of Qseven
MXM Connector.
16
GND6
Power
0V
Ground.
17
RIN3-
Output
LVDS
LVDS primary channel differential
pair3 negative.
Connected to 115
th
Pin of Qseven
MXM Connector.
18
RIN3+
Output
LVDS
LVDS primary channel differential
pair3 positive.
Connected to 113
th
Pin of Qseven
MXM Connector.
19
GND7
Power
0V
Ground.
20
GND8
Power
0V
Ground.
Table 22: LVDS0 Backlight Connector Pin Out
Pin No
Pin Name
Signal Type
Voltage Level/
Termination
Description
1
LED_A0
Power
15V
LED Anode.
2
LED_K0
Power
0V
LED Cathode.
Note: To change the LVDS0 Backlight LED driver setting,
1.
Change Current sensing resistor
R24 (R
SET)
by calculating using the below formula
Where V
FB
= 190mV, I
LED
= Current required for LCD backlight LEDs.
2.
Change
D14
Zener Diode from 15V to required voltage.
(Populated diode part number is BZT52C20-7-F)
Note: Refer