5.0 DP83840A Application (continued)
Chassis Ground
Layer 1 (top)
Signal Routing
DP83223
Ground
Plane:
DP83840A
Magnetics
RJ45
Chassis
System
Ground
Layer 2
Ground
Signal Routing
DP83840A
Magnetics
RJ45
Plane:
System Ground
DP83223
System
Ground
System
VCC
Layer 3
VCC
Signal Routing
Planes:
DP83840A
Magnetics
RJ45
System VCC
DP83223
System
VCC
Chassis Ground
Layer 4 (bottom)
Ground
Signal Routing
DP83223
DP83840A
Magnetics
RJ45
Plane:
Chassis
FIGURE 21. Power and Ground Plane Isolation
Version A
National Semiconductor
59