your position is our focus
S
Disabling
SBAS
(WAAS,
EGNOS)
reduces
the
current
consumption
by
up
to
3mA
ng
on
the
number
of
visible
SBAS
satellites).
BAS
(dependi
U
the
update
rate
from
1
Hz
to
0.2
Hz
(1
position
in
5
seconds)
results
in
a
current
saving
of
about
0.6
mA.
Increasing
the
update
rate
from
1
Hz
to
4
Hz
consumption
by
2
to
3
mA
pdate
Rate
Reducing
increases
the
current
Power
ly
voltage
Lowering
Vcc
from
3.3V
to
2.85V
reduces
the
current
consumption
by
approx.
1mA
supp
Idling
serial
d
to
the
application,
reduces
the
current
consumption
by
approximately
By
sending
a
CFG-PRT
message
with
ports
Disabling
a
serial
port
(e.g.
port
2),
which
is
not
connecte
0.4mA.
Protocol
in
and
Protocol
out
set
to
‘none’,
the
port
can
be
completely
disabled.
Table 11: Means to reduce Power Consumption in Continuous Tracking Mode
ined
into
Sleep
State
to
further
reduce
the
power
consumption
of
the
receiver.
A
restart
of
the
receiver
can
be
compared
to
a
reacquisition
scenario;
therefore
the
same
sensitivity
level
applies
ent
power
states
influencing
the
function
and
power
consumption
of
the
receiver.
4.2.7 Power Saving Modes (FixNOW™ Mode, FXN)
In
FixNOW™
Mode
(FXN),
the
receiver
will
shut
down
automatically
if
there
is
no
GPS
signal
and
wake
up
at
predef
intervals
in
order
to
acquire
GPS
PVT
Data.
FixNOW™
Mode
also
allows
the
GPS
receiver
to
be
set
when
a
receiver
wakes
up
from
any
FixNOW™
Off
State.
Note
Do
not
use
FixNOW™
on
DR
enabled
GPS
Receivers
(e.g.
LEA-4R/TIM-4R)
4.2.7.1 Power
States
In
the
Continuous
Tracking
Mode
(CTM)
the
receiver
is
always
in
the
Full
Power
State.
In
FixNOW™
Mode
(FXN)
the
receiver
may
use
differ
Modes
Power States
CTM
FXN
Description
Full Power State
This
is
the
state
during
satellite
acquisition,
reacquisition
and
tracking.
All
active
sections
are
powered.
Sleep State
Can
be
selected
in
FXN
Mode
when
no
navigation
solution
is
required
or
possible.
iver
can
be
woken
up
via
EXTINT
interrupts
or
serial
port
command
-
The
rece
Backup State
-
Can
be
selected
in
FXN
Mode
when
no
navigation
solution
is
required
or
possible.
CPU Only
-
-
Not
available
by
default.
T
iew Powe
able 12: Overv
r States
Full Power
State
Backup State
Sleep State
CPU only State
On State
Off State
Figure 54: On State - Off State
GPS
Modules
-
System
Integration
Manual
(SIM)
(incl.
Reference
Design)
Receiver
Description
GPS.G4-MS4-05007-A1
Page 65