Wavecom WISMO Quik Q2406 - Figure 8 Example of 3 V SIM Socket Implementation

WM_PRJ_Q2400_PTS_005 -007
18th January 2006
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Typical implementation with SIM detection:
SIM_VCC 1
SIM_RST 2
SIM_DAT
A
7
SIM_PRES 8
VCC
RST
CL
K
CC4
GND
VPP
I / O
CC8
GND
VCC 4
5
GND
100
k
Ω
C
100 nF
470pf
SIM_CL
K
3
GND
GND
(1)
(2)
(1) Recommended components: DALC208SC6 (SGS-THOMSON).
(2) Recommended components: ESDA6V1SC6 (ST).
Figure 8 Example of 3V SIM Socket implementation
SIM socket connection:
SIM socket pin description
Signal Pin number Description
VCC 1 SIM_VCC
RST 2 SIM_RST
CLK 3 SIM_CLK
CC4 4 VCC module
GND 5 GROUND
VPP 6 Not connected
I/O 7 SIM_DATA
CC8 8
SIM_PRES with 100 kΩ pull down resistor
The capacitance value on the SIM_VCC must not exceed 100nF.
It is possible to use a capacitor value greater than 100nF but less than 330nF on
SIM_VCC, if an additional capacitor with a minimum value of 27µF (ESR <100
mΩ, X5R ceramic) is placed between VCC output (pin 40) and the GND.