TIM-5H
-
Hardware
Integration
Manual
Design-In
GPS.G5-MS5-07015-A-1
u-blox
proprietary
Page 19
your position is our focus
2.8.3 Placement
A
very
important
factor
in
achieving
maximum
GPS
and
GALILEO
performance
is
the
placement
of
the
receiver
on
the
PCB.
The
connection
to
the
antenna
must
be
as
short
as
possible
to
avoid
jamming
into
the
very
sensitive
RF
section.
Make
sure
that
RF
critical
circuits
are
clearly
separated
from
any
other
digital
circuits
on
the
system
board.
To
achieve
this,
position
the
receiver
digital
part
towards
your
digital
section
of
the
system
PCB.
Care
must
also
be
exercised
with
placing
the
receiver
in
proximity
to
circuitry
that
can
emit
heat.
The
RF
part
of
the
receiver
is
very
sensitive
to
temperature
and
sudden
changes
can
have
an
adverse
impact
on
performance.
The RF part of the receiver is a temperature sensitive component. Avoid high temperature
drift and air vents near the receiver.
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Non 'emitting'
circuits
PCB
Digital & Analog circuits
Non
'emitting'
circuits
An
te
n
na
Digital Part
RF Part
RF & heat
'emitting'
circuits
PCB
Digital & Analog circuits
RF& heat
'emitting'
circuits
An
tenna
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Digital Part
RF Part
Figure 7: Placement
