User's Manual

User’s Guide – SDC-MSD40NBT

SDC-MSD40NBT_UsersGuide

Scope

This document describes key hardware aspects of the Summit SDC-MSD40NBT 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 BCM4329 data sheet issued in June of 2009.

The SDC-MSD40NBT is currently in pre-production and this document is preliminary. The information in

this document is subject to change. Please contact Summit or visit the Summit website at

www.summitdatacom.com to obtain the most recent version of this document.

Operational Description

This device is an SDC-MSD40NBT 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) and 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-MSD40NBT fully conforms to applicable regulatory requirements. In the event that

specified types of radar are detected by the network infrastructure, the SDC-MSD40NBT fully conforms to

commands from the infrastructure for radar avoidance.

The SDC-MSD40NBT interfaces to host devices via a 60-pin 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-MSD40NBT 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 SDC-MSD40NBT 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-MSD40NBTprovides two unique U.FL type antenna connectors tosupport dual band transmit

and receive diversity. Supported host device antenna types include dipole and monopole antennas.