your position is our focus
3.3 TIM-4
es
x D
ign
For
a
minimal
De
wit
TIM-4x
the
following
nctions
and
pins
have
to
be
considered:
•
Connect
the
Power
supp
•
Assure
a
optimal
ground
all
g
•
Connect
the
antenna
to
RF_IN
over
a
matc
e
antenna
supply
for
active
ennas
(internal
or
te
supply
•
If
you
need
Hot-
or
Warm
your
appli
•
Decide
whether
TIMEPULSE,
RESET
or
BOO
ct
the
ropriate
on
This
is
a
minimal
setup
for
a
S
receiver
ecial
functions
and
design
requirements
in
Table 6
.
sign
h
fu
ly
to
VCC.
connection
to
round
pins
hing
50
Ohm
micro
strip
and
define
th
ant
ex rnal
power
start
in
)
cation,
connect
a
Backup
Battery
to
V_BAT
TMODE
option
are
required
in
your
application
and
conne
with
TIM-4x
modules.
Now
check
about
sp
app
pins
your
module
PVT
GP
GND
RF_IN
GND
V_BAT
16
17
18
19
20
30
29
28
27
26
25
24
23
22
21
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
VCC
GND
RxD2
TxD1
RxD1
BOOT_INT
GND
GND
GND
GND
GND
Vcc
Micro
Processor
(serial)
Passive Antenna
TIM-4
M S
GPSMODE3
VDD18OUT
RESET_
AADET_N
GPSMODE6
NC
TIME
NC
EXTIN
GPSMO
GPSMODE12
V_AN
VCC_RF
GND
V_BAT
A/ TI -4
GPSMODE5
TxD2
N
PULSE
T0
DE2
T
Backup
Battery
+
RF_IN
GND
16
17
18
19
20
30
29
28
22
21
15
14
13
27
26
25
24
23
12
11
1
2
3
4
5
6
7
8
9
10
RxD2
RxD1
VCC
GND
GND
GND
GND
TxD1
BOOT_INT
GND
GND
Vcc
Micro
Processor
(serial)
Passive Antenna
TIM-4P/TIM-4H
EXTINT1/ P13
SCK1/ P17
18OUT
RESET_N
AADET_N
V_ANT
TxD2
PCS0_N/ SS_N/ P26
SCK/ P23
VDD
VCC_RF
TIMEPULSE
MOSI/ P24
PCS3_N/ P29
EXTINT0/ P9
PCS1_N/ P27
Backup
Battery
+
ve Antenna
ign for TIM-4x Receive
Figure 38: Passi
Des
rs
Function
PIN
(TIM)
I/O
Description
Remarks
Power
VCC
1
I
Supply
Voltage
Max
allowed
ripple
on
VCC
=50mVpp
GND
2,11-
16,18
I
Ground
to
Section 0
)
Assure
a
good
GND
connection
to
all
GND
pins
of
the
module,
preferably
with
a
large
ground
plane
(for
details
refer
VDD18OUT
10
1.8V
supply
output
1.8V
output
voltage
reference.
Leave
open
if
not
used.
O
VBAT
21
I
Backup
voltage
supply
It’s
recommended
to
connect
a
backup
battery
to
V_BAT
in
order
to
enable
t
features
on
the
receivers.
See
also
Section 4.2.2
.
Warm
and
Hot
Star
Otherwise
connect
to
GND
.
GPS
Modules
-
System
Integration
Manual
(SIM)
(incl.
Reference
Design)
Design-In
GPS.G4-MS4-05007-A1
Page 47
