u-blox SARA-G3 Series User Manual

SARA-G3 series - System Integration Manual
UBX-13000995 - R06 Objective Specification Design-in
Page 122 of 218
 Package Pin 7 = UICC Contact C2 = RST (Reset)  It must be connected to
SIM_RST
 Package Pin 6 = UICC Contact C3 = CLK (Clock)  It must be connected to
SIM_CLK
 Package Pin 5 = UICC Contact C4 = AUX1 (Auxiliary contact)  It must be left not
connected
 Package Pin 1 = UICC Contact C5 = GND (Ground)  It must be connected to
GND
 Package Pin 2 = UICC Contact C6 = VPP (Programming supply)  It must be connected to
VSIM
 Package Pin 3 = UICC Contact C7 = I/O (Data input/output)  It must be connected to
SIM_IO
 Package Pin 4 = UICC Contact C8 = AUX2 (Auxiliary contact)  It must be left not
connected
A solderable SIM chip has 8 contacts and can provide also the auxiliary contacts C4 = AUX1 and C8 =
AUX2 for USB interfaces and other uses, but only 6 contacts are required and must be connected to the
module SIM card interface as described above, since SARA-G3 modules do not support the additional
auxiliary features (contacts C4 = AUX1 and C8 = AUX2).
Solderable SIM chips are suitable for M2M applications where it is not required to change the SIM once
installed.
Guidelines for single SIM card connection without detection
A removable SIM card placed in a SIM card holder must be connected the SIM card interface of SARA-
G3 modules as described in Figure 43Figure 43, where the optional SIM detection feature is not
implemented (refer to the circuit described in Figure 45Figure 45 if the SIM detection feature is not
required).
Follow these guidelines connecting the module to a SIM connector without SIM presence detection:
 Connect the UICC / SIM contacts C1 (VCC) and C6 (VPP) to the VSIM pin of the module
 Connect the UICC / SIM contact C7 (I/O) to the SIM_IO pin of the module
 Connect the UICC / SIM contact C3 (CLK) to the SIM_CLK pin of the module
 Connect the UICC / SIM contact C2 (RST) to the SIM_RST pin of the module
 Connect the UICC / SIM contact C5 (GND) to ground
 Provide a 100 nF bypass capacitor (e.g. Murata GRM155R71C104K) at the SIM supply line
(VSIM), close to the relevant pad of the SIM connector, to prevent digital noise
 Provide a bypass capacitor of about 22 pF to 47 pF (e.g. Murata GRM1555C1H470J) on each SIM
line (VSIM, SIM_CLK, SIM_IO, SIM_RST), very close to each relevant pad of the SIM connector,
to prevent RF coupling especially in case the RF antenna is placed closer than 10 - 30 cm from the
SIM card holder
 Provide a very low capacitance (i.e. less than 10 pF) ESD protection (e.g. Tyco Electronics
PESD0402-140) on each externally accessible SIM line, close to each relevant pad of the SIM
connector: ESD sensitivity rating of the SIM interface pins is 1 kV (Human Body Model according to
JESD22-A114), so that, according to the EMC/ESD requirements of the custom application, higher
protection level can be required if the lines are externally accessible on the application device

u-blox SARA-G3 Series Specifications

General

Brand	u-blox
Model	SARA-G3 Series
Category	GSM/GPRS Modules
Language	English