Nvidia Jetson TX2 NX User Manual

USB and PCI Express
NVIDIA Jetson TX2 NX DG-10141-001_v1.1 | 29
Table 6-12. Ethernet MDI Interface Signal Routing Requirements
Parameter Requirement Units Notes
Reference plane GND
Trace impedance (Diff pair / Single Ended) 100 / 50 Ω
±15%. Differential impedance target is 100Ω.
90Ω can be used if 100Ω is not achievable
Min trace spacing (pair-pair) 0.763 mm
Max trace length/delay 109 (690) mm (ps)
Max within pair (intra-pair) skew 0.15 (1) mm (ps)
Number of vias minimum Ideally there should be no vias, but if required for
breakout to Ethernet controller or magnetics,
keep very close to either device.
Table 6-13. Ethernet Signal Connections
Module Pin Name Type Termination Description
GBE_MDI[3:0]_N/P DIFF
I/O
Gigabit Ethernet MDI IF Pairs: Connect to Magnetics -/+ pins
GBE_LED_LINK O 110Ω series resistor Gigabit Ethernet Link LED: Connect to green LED on RJ45
connector
GBE_LED_ACT O 110Ω series resistor Gigabit Ethernet Activity LED: Connect to yellow LED on RJ45
connector

Nvidia Jetson TX2 NX Specifications

General

Brand	Nvidia
Model	Jetson TX2 NX
Category	Computer Hardware
Language	English