u-blox ANTARIS 4 - Page 174

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Pin-out
The pin-outs of  TIM-ST and TIM-4x modules do not differ significantly. Table 84 compares the modules and
highlightsthedifferencestobeconsidered.
TIM-ST TIM-4x Remarks
Pin
PinName TypicalAssignment PinName TypicalAssignment 
1 VCC
2.75–3.45V
VCC
2.70–3.30V
Thenominalvoltagesareidenticalbutthe
tolerancesdifferslightly.u-bloxrecommends
usinga3.0VLDOforTIM-4x(see 4.2.1.1)
2 GND
GND
GND
GND Nodifference
3 BOOT_INT
NC
BOOT_INT
NC Nodifference
4 RXD1
3.0Vin
RXD1
1.8to5.0Vin Nodifference
5 TXD1
3.0Vout
TXD1
3.0Vout Nodifference
6 TXD2
3.0Vin
TXD2
3.0Vout Nodifference
7 RXD2 RXD2
3.0Vout
1.8to5.0Vin Nodifference
8 AA_SCD_N
Notconnected
GPSMODE5
Notconnected
SCK1/ P17/
Nodifference,ifAntennaSupervisorisnotused.
9 RF_ON
Notconnected
EXTINT1/
GPSMODE3
Notconnected
Nodifference,ifRF_ONhasnotbeenused.
10 GND
Notconnected
VDD18OUT
Notconnected
DifferentfunctiononANTARISTIMmodules.
Needs to be redesigned!
11
to GND
GND
GND
GND Nodifference
16
17 RF_IN
RF_IN
RF_IN
RF_IN Nodifference
18 GND
GND
GND
GND Nodifference
19 V_ANT
3.0V–5.0V
V_ANT
3.0V-5.0V Nodifference
20 VCC_RF
VCC-0.1V
VCC_RF
VCC-0.1V Nodifference
21 V_BAT
1.85–3.6V
V_BAT
1.50–3.6V Widervoltagerange
22 RESET_N
3.0V
RESET_N
1.8V
Differentvoltagerange.Noproblemaslongas
thispinisnotdrivenhigh(see 4.9.2).
23 NU
Notconnected
EXTINT0
3.0VI/O,not Thispin isaninputonTIM-4x,henceno
connected problem
24 NU
Notconnected
PCS1_N /
GPSMODE2
3.0VI/O,not
connected
Nodifference
25 NU
Notconnected
PCS0_N/
3.0VI/O,not
Nodifference
GPSMODE6
connected
26 NU
Notconnected
SCK/
NC
3.0VI/O,not
connected
Nodifference
27 AA_OCD
Notconnected
AADET_N
3.0VI/O,not
connected
NoproblemifthispinisnotusedonTIM-ST.Ifit
wasusedtocontroltheantennavoltagesupply,
aminormodificationisrequiredforTIM-4x
designs(see Section4.3.3.2).
28 AA_CTRL
Notconnected
NC
connected
MOSI/
3.0VI/O,not
NoproblemifthispinisnotusedonTIM-ST.Ifit
wasusedtocontroltheantennavoltagesupply,
aminormodificationisrequiredforTIM-4x
designs(see Section4.3.3.2).
29 TIMEPULSE
3.0Vout
TIMEPULSE
3.0Vout Nodifference
30 GND
Notconnected
PCS3_N/
GPSMODE 12
3.0VI/O,not
connected
P29isaninputonTIM-4x,hencenoproblem
J:Pin fully stobecheckedcare
Table 84: Pin-out comparison TIM-ST vs. TIM-4x
GPSModules-SystemIntegrationManual(SIM)(incl.ReferenceDesign) MigrationtoANTARISP®P4receivers
GPS.G4-MS4-05007-A1
  Page 174