Layout Guideline - Advantech SOM-ETX Series Design Manual

SOM-ETX
IRRX C59
IRTX C61

5.13.3 Layout Guideline

IR layout requirement is not restricted strictly. Because the IR frequency was not
higher than other fast buses. So, the layout has low priority in layout procedure. One
thing we can notice was the power layout trace width, 40mil trace can flow about 1A
current.
Advantech SOM-ETX Design Guide
We need seperate IR ground to I/O ground, if
the IR connector was on the I/O plane.
VCC
Digital ground
Figure 5-41
Chapter 5 Carrier Board Design Guidelines
IR Connector
Ferrite Bead
Ferrite Bead
Ferrite Bead
I/O ground
VCC
IRRX
IRTX
GND
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