SDC-CF10G
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
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S
COPE
This document describes key hardware aspects of the Summit SDC-CF10G
802.11a/g compact flash radio module. This document is intended to assist
device manufacturers and related parties with the integration of this radio into
their host devices. Data in this document is drawn from a number of sources
and includes information found in the Broadcom BCM4318E data sheet issued
in July of 2006.
The information in this document is subject to change without notice. Please
contact Laird or visit the
CF10G page of the Laird website
recent version of this document.
O
PERATIONAL
D
ESCRIPTION
This device is an SDC-CF10G 802.11b/g compact flash radio module with antenna connectors, which
operates in the 2.4 GHz portions of the radio frequency spectrum. The device is compliant with IEEE 802.11b
and 802.11g standards using Direct Sequence Spread Spectrum and Orthogonal Frequency Division
Multiplexing. The device supports all 802.11b and 802.11g data rates and automatically adjusts data rates
and operational modes based on various environmental factors.
The SDC-CF10G is compliant with Compact Flash Type 1 mechanical specifications and interfaces to host
devices via a 50-pin connector. The device is based on the Broadcom BCM4318E chip which is an integrated
device providing a Media Access Controller (MAC), a Physical Layer Controller (PHY or baseband processor)
and a 2.4 GHz transceiver. To maximize operational range, the SDC-CF10G incorporates a 2.4 GHz Power
Amplifier to increase transmit power to as much as 15 dBm (30 mW) and a 2.4 GHz Low Noise Amplifier to
improve receiver sensitivity. The frequency stability for both 2.4 GHz (802.11b and 802.11g) operation is +/-
20 ppm.
The CF10G has its own RF shielding and does not require shielding provided by the host device into which it
is installed in order to maintain compliance with applicable regulatory standards. As such, the device may be
tested in a standalone configuration via an extender card.
The device buffers all data inputs so that it will comply with all applicable regulations even in the presence of
over-modulated input from the host device. Similarly, the SDC-CF10G incorporates power regulation to
comply with all applicable regulations even when receiving excess power from the host device.
The SDC-CF10G provides two antenna connectors (Hirose U.FL type) to support transmit and receive diversity.
Supported host device antenna types include dipole and monopole antennas.
The device is labeled with all applicable regulatory information in a manner that’s compliant with all
regulatory standards. Regulatory operational requirements are included with this document and may be
incorporated into the operating manual of any device into which the SDC-CF10G is installed. The SDC-10G is
designed for installation into mobile devices such as vehicle mount data terminals which typically operate at
distances greater than 20 cm from the human body and portable devices such as handheld data terminals
which typically operate at distances less than 20 cm from the human body. See “
” for more information.
