Integra M2106+
Using the Integra Wireless CPU
®
©Confidential
Page: 61 / 77
This document is the sole and exclusive property of Wavecom. Not to be distributed or divulged without prior written
agreement.
WA_DE_PTS_003-001
April, 2007
6.4
Installation of the Integra M2106+ Wireless CPU
®
on an Application Board
The Integra M2106+ Wireless CPU
®
can be mounted on the application PCB in two ways:
•
The bottom side of the Wireless CPU
®
is assembled on the application PCB. The 50-pin connector of
the Wireless CPU
®
is directly connected to the mating connector assembled on the application PCB
•
The top side of the Wireless CPU
®
is assembled on the application PCB. The 50-pin connector is
connected to the application board via a flex cable connector
Note
:
The bottom side of the Wireless CPU
®
on the application is the recommended mounting option, because of
better Wireless CPU
®
immunity to noise generated on the application board.
For installation of the Integra M2106+ Wireless CPU
®
on an application board, Wavecom recommends:
•
Use the recommended footprint described in Figure 22, if the bottom side of the Wireless CPU
®
is on
the application and reverse it, if the top side is on the PCB
•
Connect the metallic pads around the fixing holes (1, 2, 3 & 4) of the Wireless CPU
®
to the application
board ground
Notes
:
•
If the connection of the 4 holes is not possible, at least 2 holes on opposite corners (e.g. 1 & 3 or 2 &
4) must be connected to the ground board
•
For a better ground connection, it is recommended to use a ground plane on the application board
•
If the Integra M2106 Wireless CPU
®
is assembled bottom side on the application PCB, Wavecom
strongly recommends using fastening systems, which allows enough clearance to connect the
Wireless CPU
®
•
Do not use fastening systems, which do not allow a minimum clearance (such as threaded holes
directly on the PCB for example). This may result of being impossible to connect the Wireless CPU
®
•
If the Wireless CPU
®
is mounted bottom side on the application PCB, use a low-profile connector as
the mating connector to the Wireless CPU
®
50-pin connector (See section 8.1.1 “General Purpose
Connector” for connector recommended reference)
•
For
Wireless
CPU
®
fastening on the application use:
o Stainless steel material
o Screw: Chc M2x16 (Qty=4)
o Washer: flat or curved spring M2 (Qty=4)
o Hex Nut: HM2 (Qty=4)
