Wavecom WMOi3 User Manual

WMOi3 integrated Modem
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without prior written agreement. Ce document est la propriété exlcusive de WAVECOM. Il ne peut
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9
3.2.3
3.2.33.2.3
3.2.3 Remote SIM Interface
Remote SIM Interface Remote SIM Interface
Remote SIM Interface
A SIM connector is already integrated on the integrated modem (see 3.3 SIM
interface). However there is the possibility to implement a remote SIM
connector using the signals described in the table below.
PIN number
PIN numberPIN number
PIN number Signal
SignalSignal
Signal
47 SIMVCC
46 SIMRST
45 SIMCLK
50 GND
49 SIMDATA
48 SIMPRES
3.2.4
3.2.43.2.4
3.2.4 Audio
Audio Audio
Audio
The modem allows the connection of a handset or a headset through AUDIO
signals
The audio end stage must respects the following specifications :
3.2.4.1 Microphone 2
The MIC2 inputs are differential ones. They already include the convenient
biasing for an electret microphone (0,5 mA and 2 Volts). This electret
microphone can be directly connected on these inputs. The impedance of the
microphone 2 has to be around 2kΩ. These inputs are the standard ones for an
handset design while MIC1 inputs can be connected to an external headset or
a handsfree kit.
The gain of MIC2 inputs is internally adjusted. The gain can be tuned from
30dB to 51dB. The connexion to the microphone is direct.
Pin description
Pin descriptionPin description
Pin description
Signal
SignalSignal
Signal Pin #
Pin #Pin #
Pin # I/O
I/OI/O
I/O I/O type
I/O typeI/O type
I/O type Description
DescriptionDescription
Description
MIC2P 16 I Analog Microphone 2 positive
input
MIC2N 18 I Analog Microphone 2 negative
input

Wavecom WMOi3 Specifications

General

Brand	Wavecom
Model	WMOi3
Category	Modem
Language	English