N58 Hardware User Guide
Chapter 4 Module Pins
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26
Antenna interface
ANT_MAIN
76
Main
antenna
-
50 Ω impedance.
ANT_GNSS
92
GNSS
antenna
-
50 Ω impedance.
ANT_BT
94
BT antenna
-
50 Ω impedance.
Other functions
GNSS_LNA_E
N
90
DO
GNSS LNA
enabling
P3
Leave this pin floating
if it is not used.
VBACKUP
105
PI
GNSS
backup
power
supply
3.0 V to 3.3 V
It can be connected to
a coin battery or farad
capacitor and provides
GNSS backup power
supply. Leave this pin
floating if it is not used.
VRTC
113
PI
RTC power
supply
2.8 V to 3.2 V,
typical value: 3.0 V
It can be connected to
a coin battery or farad
capacitor and provides
RTC power supply.
Leave this pin floating
if it is not used.
RING
13
DO
Incoming
call/SMS
indicator
control
P3
Leave this pin floating
if it is not used.
NET_LIGHT
83
DO
Network
indicator
control
P3
Leave this pin floating
if it is not used.
1PPS
89
DO
GNSS timing
output
-
The precision is less
than 30 ns.
Only the sub-models
of the N58 module with
GNSS
have
this
function.
VCC_GNSS_BI
AS
145
PO/DO
GNSS active
antenna
power
supply and
detection
-
Only the sub-models
of the N58 module with
GNSS
have
this
function.
Keypad interface
