SDC-SSD30AG
Hardware Integration Guide, version 3.3
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4
Laird Technologies
S
COPE
This document describes key hardware aspects of the Summit SSD30AG 802.11a/b/g SDIO (Secure Digital
Input/Output) 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 are drawn from a number of
sources and includes information found in the Atheros AR6002 data sheet.
Please contact Summit or visit the Summit website at www.summitdatacom.com to obtain the most recent
version of this document.
O
PERATIONAL
D
ESCRIPTION
This device is an SDC-SSD30AG 802.11a/g SDIO (Secure Digital Input/Output) radio module, which operates
in unlicensed portions of the 2.4 GHz and 5 GHz radio frequency spectrum. The device is compliant with IEEE
802.11a, 802.11b, and 802.11g standards using Direct Sequence
Spread Spectrum (DSSS) and Orthogonal Frequency Division
Multiplexing (OFDM). The device supports all 802.11a, 802.11b, and
802.11g data rates and automatically adjusts data rates and
operational modes based on various environmental factors.
When operating on channels in the UNII-2 and UNII-2 extended bands
that are in the 5 GHz portion of the frequency spectrum and are
subject to Dynamic Frequency Selection (DFS) requirements, the SDC-
SSD30AG fully conforms to applicable regulatory requirements. In the
event that specified types of radar are detected by the network
infrastructure, the SDC-SSD30AG will fully conform to commands from
the infrastructure for radar avoidance.
The SDC-SSD30AG is a System in Package (SiP) Quad Flat pack, No leads (QFN) module and interfaces to host
devices via 58 pads on the perimeter of the package. The device is based on the Atheros AR6002 chip which
is an integrated device providing a Media Access Controller (MAC), a Physical Layer Controller (PHY or
baseband processor), and 2.4 GHz and 5 GHz transceivers. To maximize operational range, the SDC-
SSD30AG incorporates 2.4 GHz and 5 GHz power amplifiers (PA) to increase transmit power to as much as
18 dBm (63 mW) and a 5 GHz low-noise amplifier (LNA) to improve receiver sensitivity. The frequency
stability for both 2.4 GHz (802.11b and 802.11g) and 5 GHz (802.11a) operation is +/- 20 ppm. The SDC-
SSD30AG is powered by the host device into which it is installed. The SDC-SSD30AG provides two diplexed
antenna interfaces to support dual band transmit and receive diversity. Supported host device antenna types
include dipole and monopole antennas. Typical host devices include Portable Data Terminals (PDTs) and
Vehicle Mounted Terminals (VMTs).
The device is labeled with all applicable regulatory information in a manner that is compliant with all
regulatory standards. Regulatory operational requirements are included with this document and are to be
incorporated into the operating manual of any device into which the SDC-SSD30AG is installed. The
SDC-
SSD30AG 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.
