MT3620
Hardware User Guide
MediaTek Confidential
©
2020 MediaTek Inc.
Page 20 of 40
This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure
of this information in whole or in part is strictly prohibited.
7.6
RF Layout Checklist
Parameter
Description
Hint
Impedance (Z)
50Ω (single-ended)
No external termination required, on-chip
termination resistor is implemented.
Trace Routing
Routing method
RF traces should be as short as possible.
RF traces should be surrounded by a strong
ground with many vias connected to the
reference ground.
RF traces should be straight and always on
the 1
st
layer. Avoid changing layers and any
vias.
Ground Plane
must be ground referenced
The reference ground for RF traces should
be on the 2
nd
layer.
The reference ground of RF traces should be
complete planes, and preferably unbroken.
Others
Other notifications
Do not let any noisy traces run near or cross
RF traces, e.g. data lines, clock signals,
digital power and ground traces, etc.
Matching devices should be as small as
possible, e.g. 0201 is better than 0402.
