General Atomics AEVK1 Users Manual
TM
Aspen
AEVK-01 User
Manual
Ultra Wideband Transceiver
General Atomics Photonics Division
10240 Flanders Court
San Diego, CA 92121
http://photonics.ga.com/uwb
Tel: (858) 457-8749
Fax: (858) 457-8746
Email: jeff.harris@ga.com
April 2005
Version 1.0.4
Copyright General Atomics 2005
Nondisclosure Provisions
This manual contains General Atomics Corporation Confidential and Proprietary
information. All developers utilizing this evaluation kit and its documentation are
reminded of their obligations to protect General Atomics Proprietary information.
Copyright
©2005 General Atomics. All rights reserved.
Trademarks
Aspen and Spectral Keying are registered trademarks of General Atomics Corporation.
Rights
Rights to use this documentation are restricted to the terms set forth in the Terms and
Conditions accompanying this AEVK-01 Evaluation Kit.
Regulatory Notice
This device does not comply with any RF emissions regulations in any country. Users
should consult their spectrum management authorities before use.
U.S. Operation
subject to the following conditions: (1) this device may not cause harmful
interference; (2) this device must accept any interference received, including
interference that may cause undesired operation; (3) this device must be operated
indoors; and (4) the emissions from equipment operated under this section shall not
be intentionally directed outside of a building where the equipment is located, such as
through a window or doorway, to perform an outside function, and
outdoor mounted antennas or any other outdoor antenna infrastructure is prohibited.
Operation in disregard of these conditions is a violation of 47 U.S.C. 301 and could
subject the operator to serious legal penalties.
Outside U.S. Operation
authorized for use or commercial exploitation under the regulations on any non-U.S.
government agency. Please consult with your government’s local regulatory agency
to ensure proper authorizations are obtained.
: This device complies with the Part 15 of the FCC rules. Operation is
(5) the use of
: This AspenTM UWB transceiver technology has not been
2
This document contains proprietary information subject to the terms and
conditions of General Atomics Aspen Developers Program Nondisclosure
Agreement
Table of Contents
Revision History....................................................... 4
Spectral Keying® Ultra Wideband Modulation.......... 5
Applications ............................................................. 7
Basic Connection.................................................... 10
Connecting The System For Data Streaming Operation................ 11
RF Test Mode ....................................................................... 12
Summary .......................... Error! Bookmark not defined.
Antenna Characteristics ......................................... 14
3
This document contains proprietary information subject to the terms and
conditions of General Atomics Aspen Developers Program Nondisclosure
Agreement
Revision History
Revision Date Author Comments
November 1st, 2005 L. Chow Initial creation.
March 25th, 2005 R. Erman Added instructions on RF
Test Mode
March 31st, 2005 R. Erman Moved programming
portion Tech Note 4001.
April 5th, 2005 R. Erman Added Information
regarding AEVK
companion CD.
4
This document contains proprietary information subject to the terms and
conditions of General Atomics Aspen Developers Program Nondisclosure
Agreement
Introduction
Congratulations on your purchase of the General Atomics AEVK-01 ultra
wideband (UWB) transceiver evaluation kit! This evaluation kit contains all of
the hardware, software and documentation necessary to evaluate an FCCcompatible high data rate UWB transmission system. As the first generation of
the Aspen
the AspenTM 2000 UWB multi-chip module (MCM) based chipset, including the
physical layer, baseband, and the embedded media access control (MAC)
functions necessary to accomplish low-power wireless multimedia streaming.
TM
family of UWB radios, the AEVK-01 is a discrete implementation of
This User’s Guide describes the functional capabilities of the Aspen system, the
advantages of the Spectral Keying
®
(SK) modulation technique employed in
the radio, its operational characteristics, and application interfaces. The AEVK01 is designed to provide product development OEMs and ODMs confidence in
the robust RF performance of the SK-based UWB radio and provides all of
information necessary to develop and test applications.
Detailed timing and interface specifications are provided separately with
General Atomics developer’s agreement.
Spectral Keying® Ultra Wideband Modulation
SK modulation is fundamentally different from other UWB approaches,
optimized for robust long-range operation in high multipath application
environments. The SK modulation approach divides the allocated UWB
spectrum into multiple sub-bands, each with 500 MHz minimum bandwidth.
This provides flexibility in selecting suitable bands (spectral agility) based on
the presence of interference or regulatory constraints. In the SK modulation
architecture used in the AEVK-01, information symbols are made up of 5
pulses, each sent in a different UWB sub-band. The combination of the five sub
bands creates a symbol, where information is encoded in the sequence of the
bands used for each pulse. Each frequency is used only once in a symbol. An
individual sub band sample is shown below:
5
This document contains proprietary information subject to the terms and
conditions of General Atomics Aspen Developers Program Nondisclosure
Agreement
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