Nvidia Jetson AGX Xavier Series User Manual

Transmission Line Primer
Jetson AGX Xavier Series Product DG-09840-001_v2.5 | 134
21.5 Transmission Lines and Reference
Planes
Defining an appropriate reference plane is vital to transmission line performance due to
crosstalk and EMI issues. The following points explore appropriate reference plane
identification and characteristics for optimal signal integrity:
 Transmission line return current (Figure 21-4)
• High-speed return current follows the path of least inductance.
• The lowest inductance path for a transmission line is right underneath the
transmission line; i(D) is proportional to:
Figure 21-4. Transmission Line Height
 Transmission line return current:
• High-speed return current follows the path of least inductance.
• The lowest inductance path for a transmission line is the portion of the line closest to
the dielectric surface; i(D) is proportional to
1
( 1
+
D
H
2
)
 Crosstalk on solid reference plane (Figure 21-5):
• Crosstalk is caused by the mutual inductance of two parallel traces.
• Crosstalk at the second trace is proportional to
1
( 1
+
D
H
2
)
• The signals need to be properly spaced to minimize crosstalk

Nvidia Jetson AGX Xavier Series Specifications

General

GPU	512-core Volta GPU with Tensor Cores
CPU	8-core ARM v8.2 64-bit CPU, 8MB L2 + 4MB L3
Memory	32GB 256-Bit LPDDR4x | 137GB/s
Storage	32GB eMMC 5.1
DL Accelerator	2x NVDLA Engines
Vision Accelerator	7-way VLIW Vision Processor
Dimensions	105 mm x 105 mm
AI Performance	32 TOPS (INT8)
Connectivity	10/100/1000 BASE-T Ethernet
PCIe	16x PCIe Gen4
USB	USB 3.1, USB 2.0
Power	10W / 15W / 30W
Display	eDP