Electrostatic Discharge (Esd); Module Power States - Sierra Wireless MC5725 Hardware Integration Manual

CDMA and GSM / UMTS Mini Card Hardware Integration Guide
Note: The module unit defaults
to the Normal state when
VCC3.3 is first applied in the
absence of W_Disable# control
18
In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
Note: The Product Specification Document's pin connection table
describes the internal structure of the module. For example, a Mini
Card standard-compliant host platform provides +3.3Vaux on pin 24,
but this pin is not connected internally on the MC8775V. Thus, the pin
is flagged as 'No connect'.

Electrostatic discharge (ESD)

You are responsible for ensuring that the host has adequate
ESD protection on digital circuits and antenna ports:
• (Operational) RF port (antenna launch and RF connector):
IEC‐61000‐4‐2 — Level (Electrostatic Discharge Immunity Test)
• (Non‐operational) Host connector interface:
JESD22‐A114‐B +/‐ 1kV Human Body Model and
JESD22‐C101 +/‐ 125 V Charged Device Model
MC5728/MC5728V only: (Non‐operational) Host connector
•
interface:
JESD22‐A114‐B +/‐ 200V Human Body Model and
JESD22‐C101 +/‐ 250 V Charged Device Model
MC5728/MC5728V has placeholders for additional ESD
devices, for cases where the device must, per customer
requirements, meet the higher Human Body Model (+/‐1kV)
ESD rating.
Specific recommendations are provided where needed in this
guide, however, the level of protection required depends on
your application.
Note: ESD protection is highly recommended for the USIM connector
at the point where the contacts are exposed, and for any other signals
from the host interface that would be subjected to ESD by the user of
the product.

Module power states

The module has four power states:
Disconnected
•
No power to the module.
.
Off
•
Power to the module, but the module is powered off.
Normal
•
The module is active. Several modes are possible (Receive,
Transmit, Sleep, Shutdown).
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