10Gb Lan Sideban Guidelines; Table 17: 10Gb Lan Sideban Trace Length Guidelines - Advantech SOM-5992 Design Manual

2.5.4.2 10GB LAN Sideban Guidelines

Table 17 : 10GB LAN Sideban Trace Length Guidelines
Parameter
Signal Group
Single End
Nominal Trace Space within CRT
DAC Signal Group
Spacing to Other Signal Group
LA
LB
Max length of LA+LB
Length matching
Reference Plane
Main Route Guidelines
SDP/ MDIO& MDC/LED
50Ω ±10%
Min. --10mils
Min. --10mils
Please reference SOM-5992 Layout check list
Carrier Board Length
8"
1. Match the trace lengths within MDIO & MDC to ±250
mils.
GND referencing preferred.
Min 20-mil trace edge-to-major plane edge spacing.
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Notes