User's Manual

SDC-SSD40NBT
User’s Manual, version 4.1
Americas: [phone] Option 3
Europe: [phone]
Hong Kong: [phone] x026
www.lairdtech.com/wireless
4
Laird Technologies
Scope
This document describes key hardware aspects of the Summit SSD40NBT 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 include information found in the
Broadcom BCM4329data sheet issued in June of 2009.
Please contact Summit or visit the Summit website at www.summitdata.com to obtain the most recent
version of this document.
OPERATIONAL DESCRIPTION
This device is an SDC-SSD40NBT radio module which supports IEEE
802.11a/b/g/n standards via an SDIO (Secure Digital Input/Output)
interface and Bluetooth version 2.1 via a serial UART (Universal
Asynchronous Receiver/Transmitter) interface. The radio 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,802.11g, and
802.11n standards using Direct Sequence Spread Spectrum (DSSS),
Orthogonal Frequency Division Multiplexing (OFDM), and supports
Bluetooth 2.1 using Frequency Hopping Spread Spectrum (FHSS). The
device supports all 802.11a, 802.11b, 802.11g, 802.11n, and Bluetooth
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 5GHz portion of the
frequency spectrum and are subject to Dynamic Frequency Selection requirements, the SDC-SSD40NBT fully
conforms to applicable regulatory requirements. In the event that specified types of radar are detected by the
network infrastructure, the SDC-SSD40NBT fully conforms to commands from the infrastructure for radar
avoidance.
The SDC-SSD40NBTis a System in Package (SiP) Quad Flat pack, No leads (QFN) module and interfaces to host
devices via a 56-padedge connector. The device is based on the Broadcom BCM4329chip which is an
integrated device providing a Media Access Controller (MAC), a Physical Layer Controller (PHY or baseband
processor), and fully integrated dual-band radio transceiver. To maximize operational range, the SDC-
SSD40NBT incorporates a 5 GHz power amplifier (PA) to increase transmit power. The frequency stability for
both 2.4 GHz (802.11b and 802.11g) and 5 GHz (802.11a) operation is +/- 20 ppm.
The SSD40NBT 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-SSD40NBT incorporates power regulation to
comply with all applicable regulations even when receiving excess power from the host device.
The SDC-SSD40NBT provides two diplexed antenna interfaces to support dual band transmit and receive
diversity. Supported host device antenna types include dipole and monopole antennas.
Note: When using a single antenna, it must be connected to the AUX port. BT does not function on the Main
port alone.
Regulatory operational requirements are included with this document and may be incorporated into the
operating manual of any device into which the SDC-SSD40NBT is installed. The SDC-SSD40NBT is designed