Nvidia Jetson Orin NX Series User Manual

USB and PCIe
PRELIMINARY INFORMATION
Jetson Orin NX Series and Jetson Orin Nano Series DG-10931-001_v1.1 | 39
Parameter
Requirement
Units
Notes
Routing to M.2 (NVMe) connector/card:
Insertion loss / length (delay)
-11.01 / 185 (1185)
Gen 4.0: -1.51 dB/in @ 8Ghz
Gen 3.0: -0.86 dB/in @ 4GHz
Length to delay calculations assumes 6.4
ps/mm (average of stripline and
microstrip).
The 2
nd
Orin Module loss assumption is:
Gen 4.0: -8 dB @ 8GHz
Gen 3.0: -6.5 dB @4GHz
The PCIe/M.2 connector/card loss
assumption is:
Gen 4.0: -9.5 dB @ 8GHz
Gen 3.0: -8.2 dB @4GHz
Gen 3.0 max trace:
Direct to device:
Insertion loss / length (delay)
Routing to 2
nd
Orin Module
Insertion loss / length (delay)
Routing to PCIe/M.2 connector/module:
Insertion loss / length (delay)
-15.8 / 467 (2987)
-10.5 / 310 (1985)
-7.6 / 224 (1437)
dB / mm (ps)
Max PCB via delay from the
Device/Connector
41.9
ps
Max distance from Device ball or
Connector pin to first PCB via.
PCB within pair (intra-pair) skew
0.15 (1)
mm (ps)
Do trace length (delay) matching before
hitting discontinuities.
Within pair (intra-pair) matching between
subsequent discontinuities
0.15 (1)
mm (ps)
Differential pair uncoupled delay
41.9
ps
Via
Via placement
Place GND vias as symmetrically as possible to data pair vias. GND via distance
should be placed less than 1x the diff pair via pitch
Max # of Vias
4
Use micro via or back drilled via - no via
stub allowed.
Max Via stub length
N/A
Not Allowed
AC Cap
Value Min/Max
0.22
uF
20%, 0402 X5R or better. Only required
for TX pair when routed to connector.
Place close to TX side.
Voiding
Voiding the plane directly under the pad
~0.1mm larger than the pad size is
required.
Serpentine (See USB 3.2 Guidelines)
Serpentine
Min bend angle
135
deg (a)
S1 must be taken care in order to
consider Xtalk to adjacent pair. (
Dimension
Min A Spacing
Min B, C Length
Min Jog Width
4x
1.5x
3x
Trace width
Miscellaneous
GND fill rule
Remove unwanted GND fill that is either floating or act like antenna
Connector
Voiding
Void all layers of golden finger area
under the pad ~0.15mm larger than the
pad size is recommended.

Nvidia Jetson Orin NX Series Specifications

General

Brand	Nvidia
Model	Jetson Orin NX Series
Category	Control Unit
Language	English