User's Manual
LISA-U1/LISA-H1 series - System Integration Manual
3G.G2-HW-10002-2 Advance Information System description
Page 39 of 116
features, that are not supported by the (U)SIM card interface of the LISA-U1/LISA-H1 series modules, are
provided by the SIM card (contacts C4 = AUX1 and C8 = AUX2 for USB interfaces and other uses).
A SIM card holder can have 6 or 8 positions if a mechanical card presence detector is not provided, or it can
have 6+2 or 8+2 positions if two additional pins for the mechanical card presence detection are provided.
Figure 20 shows an application circuit connecting a LISA-U1/LISA-H1 series module and a SIM card placed in a
SIM card holder with 6+2 pins (as the CCM03-3013LFT R102 connector, produced by C&K Components, which
provides 2 pins for the mechanical card presence detection), using the SIM detection function provided by the
GPIO5 of LISA-U1/LISA-H1 series module. This configuration allows the module to detect if a SIM card is present
in the connector. The SW1 and SW2 pins of the SIM card holder are connected to a normally-open mechanical
switch integrated in the SIM connector. The following cases are available
SIM card not present: the GPIO5 signal is forced low by the pull-down resistor connected to ground (i.e. the
switch integrated in the SIM connector is open)
SIM card present: the GPIO5 signal is forced high by the pull-up resistor connected to V_INT (i.e. the switch
integrated in the SIM connector is closed)
LISA-U1/LISA-H1
series
C1
SIM CARD
HOLDER
CCVCC (C1)
CCVPP (C6)
CCIO (C7)
CCCLK (C3)
CCRST (C2)
GND (C5)
C2 C3 C5
D2 D3
C
5
C
6
C
7
C
1
C
2
C
3
SIM Card
Bottom View
(contacts side)
J1
50
VSIM
48
SIM_IO
47
SIM_CLK
49
SIM_RST
C4
SW1
SW2
4
V_INT
51
GPIO5
R2
R1
D1
Figure 20: SIM interface application circuit
Reference
Description
Part Number - Manufacturer
C1, C2, C3, C4
33 pF Capacitor Ceramic COG 0402 5% 25 V
GRM1555C1H330JZ01 - Murata
C5
100 nF Capacitor Ceramic X7R 0402 10% 16 V
GRM155R71C104KA01 - Murata
D1, D2, D3
ESD Transient Voltage Suppressor
USB0002RP or USB0002DP - AVX
R1
1 kΩ Resistor 0402 5% 0.1 W
RC0402JR-071KL - Yageo Phycomp
R2
470 kΩ Resistor 0402 5% 0.1 W
RC0402JR-07470KL- Yageo Phycomp
J1
SIM Card Holder
Various Manufacturers,
CCM03-3013LFT R102 - C&K Components
Table 16: Example of components for SIM card connection
When connecting the module to an SIM connector, perform the following steps on the application board:
Bypass digital noise via a 100 nF capacitor (e.g. Murata GRM155R71C104K) on the SIM supply (VSIM)
To prevent RF coupling in case the module RF antenna is placed closer than 10 - 30 cm from the SIM card
holder, connect a bypass capacitor of about 22 pF to 47 pF (e.g. Murata GRM1555C1H470J) at each SIM
signal (VSIM, SIM_CLK, SIM_IO, SIM_RST) to ground near the SIM connector
Mount very low capacitance ESD protection (e.g. Infineon ESD8V0L2B-03L or AVX USB0002) near the SIM
card connector