Table 9-3. Edp And Dp Main Link Signal Requirements Including Dp_Aux - Nvidia Jetson Orin NX Design Manual

Table 9-3. eDP and DP Main Link Signal Requirements Including DP_AUX
Parameter
Specification
Max Data Rate / Min UI
HBR3
HBR2
HBR
RBR
Number of Loads / Topology
Termination
Electrical Specification
Insertion Loss
E-HBR @ 0.675GHz
PBR 0.68GHz
HBR 1.35GHz
HBR2 @ 2.7GHz
HBR3 @ 4.05GHz
Resonance dip frequency
HBR2
HBR3
TDR dip
FEXT
@ DC
@ 2.7GHz
@ 5.4GHz
Impedance
Trace Impedance (Diff pair)
Reference Plane
Trace Length (delay), Spacing and Skew
Trace loss characteristic
HBR2 or lower (@ 2.7GHz)
HBR3 (@4GHz)
Max PCB Via dist. from module conn.
RBR/HBR
HBR2 and HBR3
Max trace length (delay) from module to connector
RBR/HBR
Stripline
Microstrip
HBR2
Stripline
Microstrip
HBR3
PRELIMINARY INFORMATION
NVIDIA Jetson Orin NX
Requirement Units
8.1 / 123 Gbps / ps
5.4 / 185
2.7 / 370
1.62 / 617
1 load
100 Ω
<=0.7 dB
<=0.7
<=1.2
<=4.5
<=5.5
>8 GHz
>12
>85 Ω
IL/FEXT plot – up to HBR2. See Figure 9-3.
<= -40dB
<= -30dB IL/FEXT plot – HBR3. See Figure 9-4.
<= -30dB
100 Ω (±10%)
90
85
GND
< 0.64 dB/in
<=0.9
No requirement mm
7.62
215 (1137.5) mm (ps)
215 (975)
184 (1260)
178 (1050)
Display
Notes
Per data lane
Point-Point, Differential, Unidirectional
On die at TX/RX
@ Tr-200ps (10%-90%)
100Ω is the spec. target. 95/85Ω are
implementation options (Zdiff does not
account for trace coupling)
95Ω should be used to support DP-HDMI
co-layout as HDMI 2.0 requires 100Ω
impedance (see HDMI section for addition of
series resistor R ).
S
85Ω can be used if eDP/DP only and is
preferable as it provides better trace loss
characteristic performance. See Note 1.
The following max length (delay) is derived
based on this characteristic. The length
(delay) constraint must be re-defined if loss
characteristic is changed.
6.9ps/mm assumption for Stripline,
5.9ps/mm for Microstrip.
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