User's Guide

xE922-3GR Hardware User Guide
1VV0301272 Rev.0.8 2017-01-05
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Reserved. Page 61 of 112
Recommended routing guidelines for the whole MIPI-DSI signal traject:
parameter
guideline
Characteristic impedance (stripline
/ microstrip)
100 ohm differential 10%(SL) 15%(MS)
Trace spacing : between differ
e
ntial pairs or between
differential pair and other signals (h = dielectric height)
5xh (SL) 7xh (MS)
Total length
(module
(L1+L2) + carrier(L3)+add-on pcb(L4)
+ FPC
cable
(L5))
Min. 50.8 mm / Max. 152.4 mm
(MS/SL)
Max. n
umber of vias allowed
4 through
-
hole vias + 4 microvias + 2
connector pins
Length matching between P and N within a differential pair
Within same layer
mismatch: +/-
0.254 mm
Total length mismatch: +/
-0.381 mm
Length matching between DATA to CLK
Within same layer mismatch : +/
-
1.27 mm
Total length mismatch: +/
- 2.54 mm
Guidelines for off-module sub trajects:
parameter
Carrier board
Addon board
FPC
cable
Transmission line segment
L3
L4
L5
Length [mm]
50.8
- 83.8 (MS/SL)
12.7
- 25.4 (MS)
50.8
- 127