User's Manual

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3. Logical classes vs. logical classes:8mil
6.2.3 Additional PCB information
1. The maximum current of the 12V trace is 5A and the minimum width is 100mil
2. TVS,ESD devices as close as possible to the connector
3. LVDS signals, EDP signals, Ethernet PHY signals are controlled with differential impedance
control of 100 ohms and USB signal differential impedance control of 90 ohms
4. LVDS signal,EDP signal,PHY signal,DDR signal,Flash signal to do equal length processing, the
signal in the group is controlled within 5mil, Different groups of signals are controlled within
100mil
5. The WIFI module antenna feeder is controlled with a 50 ohm impedance
6. The PHY core crystal oscillator should be close to the chip, package processing, and the MAC
clock line goes to the inner layer
7. The bottom of the RJ45 connector is cutout
8. The wiring of DCDC needs to consider the loops of dV/dt and dI/dt, reduce the area of the
current and voltage mutation loop, and increase the width of the trace
9. 3W:Susceptible to interference and high-speed signals need to be pulled apart at least 3W away
from other lines
(1) Susceptible to interference:Reset,ADC signal
(2) High-speedsignals:DDR,Flash,PHY signals,DCDC switch pins, crystal oscillators
10. Suture holes: The entire PCB is placed in different GND planes
FCC&IC Statement:
Please take attention that changes or modification not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause
undesired operation.
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to
the following two conditions:
(1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause undesired
operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils
radioexempts de licence. L'exploitation est autorisée aux deux conditions suivantes :
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le fonctionnement.