User's Manual

LPP0108IG001 37 Version - Preliminary – 06/20/08

The module provides the regulated supply voltage for the SIM-card and the circuitry to detect the insertion

or extraction of the SIM-Card in or from the mobile.

The SIMDTC is disabled by default (see AT$SIMDTC in the EIII AT Command Manual for settings).

When enabled, the SIMDTC pin has an internal pull up to Vcc and can be configured to detect a SIM

insertion when the SIMDTC is either pulled to ground or left floating.

It can configured to detect either just a SIM removal or both removal and insertion.

When the module detects a SIM removal, it will de-register from the network. When the module is

configured to and detects a SIM insertion, it will reset the module and re-register on the network.

The SIM-card presence detection logic is active even when the system is in idle model.

USIM Parameter/Conditions Min Typ Max Units

VDD SIM VDD voltage 1.8V

3.3V

1.64 1.8 1.96 V

2.7 2.85 2.95 V

VIH High level input voltage 1.15 V

VIL Low level input voltage 0.61 V

VOH High level output voltage, IO = 4 mA Vdd-0.45 V

VOL Low level output voltage, IO = 1 mA 0.4 V

II Input leakage current ±1 A

Iout Output current 4 mA

PU PU resistance 32 k

PD PD resistance 30 k

Iz Leakage current ± 30 A

Card

Detect

Debouncing time (SIM-card insertion) 0.5 mS

Debouncing time (SIM-card extraction) 15 mS

Pull-up resistor (resistor + resistive switch) 475 k

6.7.1.1. Remote SIM Component Information

Any compatible SIM carrier can be used in conjunction with the Enabler LPP G module. For

example:

Lumberg P/N 8840_A_21.

Suyin P/N: 254016MA006G103ZL

Pin Name Pin Number Signal Direction Description

SIM_VDD 45 O SIM VDD

SIM_CLK 43 O Card Reference Clock

SIM_RST 42 O Card Reset

SIM_I/O 44 I/O Card I/O Data

SIMDTC 46 I Card detect