１０９
2.15.2 CAN interface Routing Guidelines
It should be routed as a differential pair signal with 120 Ohm differential impedance. The end points of
CAN bus should be terminated with 120 Ohms or with 60 Ohms from the CAN_H line and 60 Ohms from
the CAN_L line to the CAN Bus reference voltage. Check your CAN transceiver application notes for
further details on terminatio
n.
2.15.3 CAN interface Trace Length Guidelines
Figure 34
: Topology for CAN interface
Table 42
: CAN interface Trace Length Guidelines
Parameter
Main Route Guidelines
Notes
Signal Group
CAN interface
1
Single End
NA
Nominal Trace Space within SPI
Signal Group
Min. 10mils
Spacing to Other Signal Group
Min. 15mils
LA
SOM-5992 is not support CAN Interface
LB
Carrier Board Length
Max length of LA+LB
NA
Length Mismatch
NA
Via Usage
Try to minimize number of vias
Notes:
1. SOM-5992 is not support CAN Interface
