Layout Requirement - Advantech SOM-ETX Series Design Manual

Table 5.14 LVDS, TTL LCD Pin-out
Pin Pin LVDS TTL(1
C37 LCD TX-
C35 LCD TX+
C38 LCD TX-
C36 LCD TX+
C29 LCD TX-
C31 LCD TX+
C23 LCD TX-
C25 LCD TX+
C26 LCD TX-
C24 LCD TX+
C19 LCD TX-
C17 LCD TX+
C44 BA
C11 LCD TXC
C13 LCD TXC
C12 LCD TX-
C14 LCD TX+
C32 LCD TXC
C30 LCD TXC
C20 FPH TX-
C18 FPV TX+
C9 DE
C52 SHF
C46 LCD

5.6.3 Layout Requirement

SOM-ETX
BACKON
Note:
*Each LVDS channel is required to be length matched to within ± 20 mils of each
other.
Advantech SOM-ETX Design Guide
4450F 4450F 4451F
R0( TX- R0 TX-
R1 TX+ R1 TX+
R2 TX- R2 TX-
R3 TX+ R3 TX+
R4 TX- R4 TX-
R5( TX+ R5 TX+
G0 G0
G1 G1
G2 G2
G3 G3
G4 G4
G5( G5
BA BA
B0 B0
B1 B1
B2 B2
B3 B3
B4 TXC B4 TXC
B5( TXC B5 TXC
FPH FPH
FPV FPV
DE DE
SHF SHF
LCD LCD
LCDON
Damping
LVDS+
VGA
LVDS-
10~ 33 Ohm
Figure 5-20 LVDS LCD Layout Guideline
Chapter 5 Carrier Board Design Guidelines
4451F 4470F 4472F
R0 R0 TX-
R1 R1 TX+
R2 R2 TX-
R3 R3 TX+
R4 R4 TX-
R5 R5 TX+
G0 G0
G1 G1
G2 G2 TX-
G3 G3 TX+
G4 G4 TX-
G5 G5 TX+
BA BA
B0 B0 TXC
B1 B1 TXC
B2 B2
B3 B3
B4 B4 TXC
B5 B5 TXC
FPH FPH TX-
FPV FPV TX+
DE DE
SHF SHF
LCD LCD
+5V +3.3V
Bead
Power
VDD
Transfer
30Ohm
@100Mhz
120 Ohm
@100MHz
Digital GND Chassis GND
4472F 4475F 4475F 4481F
R0 TX- R0
R1 TX+ R1
R2 TX- R2
R3 TX+ R3
R4 TX- R4
R5 TX+ R5
G0 G0
G1 G1
G2 TX- G2
G3 TX+ G3
G4 TX- G4
G5 TX+ G5
BACK BACK
B0 TXC B0
B1 TXC B1
B2 B2
B3 B3
B4 TXC B4
B5 TXC B5
FPH TX- FPH
FPV TX+ FPV
DE DE
SHF SHF
LCD LCD
Carryboard
LVDS
LCD
Connector
Inverter
Connector
83
TX-
TX+
TX-
TX+
TX-
TX+
TX-
TX+
TX-
TX+
TX-
TX+
TXC
TXC
TX-
TX+
TXC
TXC
TX-
TX+