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SBC-992-pITX
SBC-992-pITX User Manual - Rev. First Edition: 1.0 - Last Edition: 2.0 - Author: S.B. - Reviewed by G.G Copyright © 2016 SECO S.r.l.
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3.3.3
LVDS / eDP + backlight connector
SBC-992-pITX can be interfaced to LCD displays using its LVDS or embedded Display Port interface (only one interface is available, depending on the factory
configuration of the board purchased).
With LVDS interface, it is possible to connect 18 bit single
channel displays, while embedded Display Port allows use
of 18-, 24- and 30-bit displays.
For the connection, a connector
type HR A1014WVA-S-2x15P or
equivalent (2 x 15p, male, straight,
P1, low profile, polarised) is
provided, with the pin-out indicated
in the following table (different
configurations are shown).
Mating connector: HR A1014H-2X15P with HR A1014-T
female crimp terminals.
Alternative mating connector, MOLEX 501189-30120 with
crimp terminals series 501334.
On the same connectors, are also implemented signals for
direct driving of display
’
s backlight: voltages (+12V
LCD
,
+5V
LCD
and +3.3V
LCD
) and control signals (Backlight enable
signal @ 5V, BKLT_EN, and Backlight Brightness Control
signal, BLT_CTRL).
When building a cable for connection of LVDS / eDP
displays, please take care of twist as tight as possible
differential pairs
’
signal wires, in order to reduce EMI
interferences. Shielded cables are also recommended.
Here following the signals related to LVDS management:
/LVDS_A0-: LVDS Channel #0 differential data pair #0.
/LVDS_A1-: LVDS Channel #0 differential data pair #1.
/LVDS_A2-: LVDS Channel #0 differential data pair #2.
LVDS / eDP connector - CN21
LVDS Interface
eDP Interface
Pin Signal
Pin Signal
Pin Signal
Pin Signal
1
+12V
LCD
2
+12V
LCD
1
+12V
LCD
2
+12V
LCD
3
+3.3V
LCD
4
+5V
LCD
3
+3.3V
LCD
4
+5V
LCD
5
+3.3V
LCD
6
+5V
LCD
5
+3.3V
LCD
6
+5V
LCD
7
GND
8
GND
7
GND
8
GND
9
LVDS_A0-
10
9
eDP0_TX2-
10 e
11
GND
12
GND
11 GND
12 GND
13
LVDS_A1-
14
13 eDP0_TX1-
14 e
15
GND
16
GND
15 GND
16 GND
17
LVDS_A2-
18
17 eDP0_TX0-
18 e
19
GND
20
GND
19 GND
20 GND
21
---
22
---
21 +3.3V_S
22 eDP_HPD
23
GND
24
GND
23 GND
24 GND
25
LVDS_CLK-
26
L
25 eDP0_TX3-
26 e
27
BKLT_EN
28
BLT_CTRL
27 BKLT_EN
28 BLT_CTRL
29
LVDS_DDC_CLK
30
LVDS_DDC_DAT 29 eDP0_AUX-
30 e