Q2406B WAVECOM, Q2406B Datasheet - Page 22

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Q2406B

Manufacturer Part Number
Q2406B
Description
Manufacturer
WAVECOM
Datasheet

Specifications of Q2406B

Date_code
06+
2.9 SIM interface
2.9.1 General Description
5 signals exist :
SIMVCC : SIM power supply.
SIMRST : reset.
SIMCLK : clock.
SIMDATA : I/O port.
SIMPRES : SIM card detect.
The SIM interface controls a 3V SIM (and a 5V SIM through an external SIM
driver). This interface is fully compliant with GSM 11.11 recommendations
concerning SIM functions.
It is recommended to add Transient Voltage Suppressor diodes on the signal
connected to the SIM socket in order to prevent any ElectroStatic Discharge.
TVS diodes with low capacitance (less than 10pF) have to be connected on
SIMCLK and SIMDATA to avoid any disturbance of the rising and falling edge.
These types of diodes are mandatory for the Full Type Approval. They shall be
placed as close as possible to the SIM socket.
The following references can be used : DALC208SC6 from ST Microelectronics.
Signal
Pin number
SIMCLK
3
SIMRST
5
SIMDATA
7
SIMVCC
9
SIMPRES
50
confidential ©
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged
without prior written agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à
des tiers sans son autorisation préalable.
WM_PRJ_Q2400_PTS_002 - 002
Pin description
I/O
I/O type
O
2X
O
2X
I/O
CMOS / 3X
O
SIM Power Supply
I
CMOS
24th January 2003
Description
SIM Clock
SIM Reset
SIM Data
SIM Card Detect
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