SNLS504G October 2015 – June 2026 DP83867CS , DP83867E , DP83867IS
PRODUCTION DATA
To meet signal integrity and performance requirements, use a minimum of a 4-layer PCB. However a 6-layer board is recommended. See Figure 9-12 for the recommended layer stack ups for 4, 6 and 8-layer boards. These are recommendations not requirements, use other configurations as per system requirements.
Figure 9-12 Recommended Layer Stack UpWithin a PCB, a desirabled can be to run traces using different methods, microstrip versus stripline, depending on the location of the signal on the PCB. For example, the opportunity can be desirable to change layer stacking where an isolated chassis ground plane is used. Figure 9-13 shows alternative PCB stacking options.
Figure 9-13 Alternative Layer Stack Up