Nvidia Jetson TX2 NX User Manual

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NVIDIA Jetson TX2 NX DG-10141-001_v1.1 | 39
7.2.2.1 HDMI Routing Guidelines
Figure 7-8 shows the HDMI CLK and data topology.
Figure 7-8. HDMI CLK and Data Topology
100Ω*
100Ω*
100Ω*
100Ω*
100Ω*
100Ω*
Jetson
HDMI
Conn
AC
C AP
Se g D Se g F
MOD_SL EE P*
49 9Ω,
1%
PCB Vias
PCB Vias
0. 1uF
0. 1uF
R
PD
Com m on Mo de
Cho kes & ES D
Se e N o te 1
49 9Ω,
1%
Se g B Se g E
Se g C
Tegra
95-100Ω 100Ω*
95-100Ω 100Ω*
Main Route –
Se g A
* Note 3 * Note 3* Note 3 * Note 3
R
S
(See Not e 4 )
Choke or Trace
Se e N o te 2
Notes:
1. RPD pad must be on the main trace. RPD and ACCAP must be on same layer.
2. Chokes (600Ω @ 100 MHz) or narrow traces (1uH@DC-100 MHz) between pull-downs and FET
are chokes between pull-downs and FET are optional improvements for HDMI 2.0 operation.
3. The trace after the main route via should be routed on the top or bottom layer of the PCB,
and either with 100 ohm differential impedance, or as uncoupled 50 ohm SE traces.
4. RS series resistor is required. See the RS section of Table 7-9 for details.
Table 7-9. HDMI Interface Signal Routing Requirements
Parameter Requirement Units Notes
Specification
Max frequency / UI 5.94 / 168 Gbps / ps Per lane – not total link bandwidth
Topology Point to point Unidirectional, differential
Termination At receiver
On-board
100
500
Ω Differential To 3.3V at receiver
To GND near connector
Electrical Specification
IL
Resonance dip frequency
<= 1.7
<= 2
<= 3
< 6
> 12
dB @ 1GHz
dB @ 1.5GHz
dB @ 3GHz
dB @ 6GHz
GHz
TDR dip >= 85 Ω @ Tr=200ps
10%-90%. If TDR dip is 75~85ohm
that dip width should < 250ps
FEXT (PSFEXT) <= -50
<= -40
dB at DC
dB at 3GHz
PSNEXT is derived from an algebraic
summation of the individual NEXT
effects on each pair by the other pairs

Nvidia Jetson TX2 NX Specifications

General

Brand	Nvidia
Model	Jetson TX2 NX
Category	Computer Hardware
Language	English