Ublox SARA-R4 Series System Integration Manual

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R11 System description Page 12 of 157
1.3 Pin-out
Table 3 lists the pin-out of the SARA-R4/N4 series modules, with pins grouped by function.
Function
Pin Name
Pin No
I/O
Description
Remarks
Power
VCC
51, 52, 53
I
Module supply
input
VCC supply circuit affects the RF performance and compliance
of the device integrating the module with applicable required
certification schemes.
See section 1.5.1 for functional description / requirements.
See section 2.2.1 for external circuit design-in.
GND
1, 3, 5, 14,
20-22, 30,
32, 43, 50,
54, 55, 57-
61, 63-96
N/A
Ground
GND pins are internally connected each other.
External ground connection affects the RF and thermal
performance of the device.
See section 1.5.1for functional description.
See section 2.2.1 for external circuit design-in.
V_INT
4
O
Generic digital
interfaces supply
output
V_INT = 1.8 V (typical) generated by internal regulator when
the module is switched on, outside the low power PSM deep
sleep mode.
Test-Point for diagnostic access is recommended.
See section 1.5.2 for functional description.
See section 2.2.2 for external circuit design-in.
System
PWR_ON
15
I
Power-on input
Internal 200 k pull-up resistor.
Test-Point for diagnostic access is recommended.
See section 1.6.1 for functional description.
See section 2.3.1 for external circuit design-in.
RESET_N
18
I
External reset input
Internal 37 k pull-up resistor.
Test-Point for diagnostic access is recommended.
See section 1.6.3 for functional description.
See section 2.3.2 for external circuit design-in.
Antenna
ANT
56
I/O
Primary antenna
Main Tx / Rx antenna interface.
50  nominal characteristic impedance.
Antenna circuit affects the RF performance and application
device compliance with required certification schemes.
See section 1.7 for functional description / requirements.
See section 2.4 for external circuit design-in.
ANT_DET
62
I
Antenna detection
ADC for antenna presence detection function
See section 1.7.2 for functional description.
See section 2.4.2 for external circuit design-in.
SIM
VSIM
41
O
SIM supply output
VSIM = 1.8 V / 3 V output as per the connected SIM type.
See section 1.8 for functional description.
See section 2.5 for external circuit design-in.

Ublox SARA-R4 Series Specifications

General

Brand	Ublox
Model	SARA-R4 Series
Category	Control Unit
Language	English