User's Manual

COMPANY CONFIDENTIAL
37
Revision
Date / Author
Details of Change
Reason for Change
Section 6 reverted back to original numbering
the need to redo certifications.
Updated Notes 11 & 12 in Section 8.2.1 Pin
Descriptions with updated Customer Portal
information
Easier to access URL directly.
Updated Table of Contents
Keep TOC aligned with actual content.
V2.0 c
Sept. 14,
2011 / SHs
Updated font styling of Table of Contents
Easier to read.
Update Section 2 Block Diagram : moved
RJ45+Transformer & USB Type A boxes inside
the drawing boundary
Improve accuracy of drawing.
Updated Section 5.3 WiFi Specification (CX870
only) TX Power Description entry
Align data with test limits.
Updated Section 5.3 WiFi Specification (CX870
only) Rx Sensitivity Description entry
Align data with test limits.
Updated Section 5.3 WiFi Specification (CX870
only) : add a Note underneath the table
Clarification of the possible effect of changing
the TX Power setting.
Updated Section 4 Ordering Guide : changed
CX870-3D row Two Ant entry from (X)* to X
Change to match final CX870-3D configuration.
Updated Section 4 Ordering Guide : removed
the two blank rows
Improve readability.
V2.0 b
Sept. 10,
2011 / SHs
Updated the Description for pin NCS3 in Section
8.2.1 Pin Descriptions
Update to align with actual use.
Updated Section 4 Ordering Guide : added gray
background to CX870-3F & CX870-3G
Internal antenna versions are not available until
performance issues are resolved.
Updated Section 4 Ordering Guide : removed
the 2 from A, H, I & J version Part Numbers
Decided to keep original part numbering
scheme to avoid unnecessary paper work and
the need to redo certifications.
Updated Section 4 Ordering Guide : split Ext.
Diversity Antennas column into two, added two
sub-columns “One Ant.” & “Two Ant.”, moved Xs
to correspond with correct sub-column
Show the number of external antenna
connections.
Updated Section 4 Ordering Guide : CX870-3D :
removed X from WiFi column
CX870-3D is not configured for internal
antenna.
Updated Section 4 Ordering Guide : updated +
Note text
Explained about one or two external antenna
options.
Updated Section 4 Ordering Guide : moved the
+ from Part Numbers column to Ext. Diversity
Antennas column
Proper link for "+" Note.
Updated Section 4 Ordering Guide : removed #
Note completely
Content now covered by "+" Note
Updated Section 4.1 Part Number Syntax :
Updated graphic
Explain antenna configuration field
Updated Section 4.1 Part Number Syntax :
Updated Note text
Explain about one or two antenna configuration.
Updated text in Section 8.1 WLAN UFL Antenna
Connector
Remove references to part numbering scheme
which includes the number of antennas, and
repeat advice to use two external antennas.
Removed RTC elements from Section 2 Block
Diagram
Support for RTC is removed.
Updated the Description for pin 3V3RTC in
Section 8.2.1 Pin Descriptions
Support for RTC is removed.
V2.0 a
August 22,
2011 / SHs
Added Section 3.5 Example Production Module
Showing Soldered RF Shield
Photo shows that RF shield is soldered, needed
for Japan Telec certification.
V2.0
August 12,
2011 / SHs
Updated Note Section 4.1 Part number syntax
Highlighted that CX870-3D does not follow the
new part numbering scheme. This Note was
subsequently deleted, so this is not relevant any
more.
Updated all Section 3 Board Pictures to new
versions + inserted new Sections 3.2.1 & 3.2.2
which show two different bottom views
Improve accuracy of data sheet photos.
V1.9 c
August 2,
2011 / SHs
 Updated Key Features on Title page:
removed (optional) from “WiFi-certified
802.11b/g” entry