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Spread Spectrum Scene
Technical Notes & Tips

You've seen lots of theoretical and tutorial articles and information about RF & Spread Spectrum. But have you seen much practical, hand-on, "how to" info? Probably not -- so here it is! This page is the home of highly practical stuff about spread spectrum & RF design. The information is organized around short subjects that are listed in the box below.

Click on a subject below for practical answers to your design questions.

Subject Name	Short Subject Description
Prototyping with Surface Mount Components	A reprinted article from SSS Online's March 2001 issue, with tips on how to use surface mount components to make better and more accurate prototypes.
Dealing with Parts Shortages	A reprinted article from SSS Online's December 2000 issue, with tips on how to avoid production delays by considering parts availability during the design process.
5 stage PN Gen	Simple & foolproof 5 stage maximal linear sequence PN generator.
PAL/GAL 11 Bit Barker PN Generator	Generate the IEEE 802.11 WLAN 11 bit long Barker code with a 16V8A PAL/GAL based PN Generator.
1 to 16 bit Universal PN Generator	Generate any PN code or arbitrary sequences up to 16 bits long. Uses dip switches for data and sequence length.
DBM - PNG Interfacing	Several ways to interface PN generators to Doubly Balanced Mixers to generate DSSS BPSK.
Tricks of DSSS QPSK Modulation	Simple, low cost QPSK modulators and other DSSS QPSK tricks.
The advantages of Constant Envelope Modulation (CEM)	An SSS sidebar - short subject extolling the virtues of CEM.
Some very useful short PN Codes with low cross-correlation	An SSS sidebar - short subject with 3 bit Gold and 4 bit Kasami codes listed.
Table of Bit Error Rates for PCM Receivers	An SSS sidebar - short subject with a Table of Bit Error Rates for PCM Receivers.
A Few Optimum Frame Synch Patterns	An SSS sidebar - short subject with a Table listing a few Optimum Frame Synch Patterns.
A Short Description of Common PCM Codes	An SSS sidebar - short subject with graphical & text definitions of Common Baseband PCM Codes.
Some Product Design Guidelines	An SSS sidebar - short subject
Summary of Quartz Crystal Characteristics	An SSS sidebar - Beginner's Box with the Most Important Quartz Crystal Resonator Characteristics.
Introduction to Oscillator Design	An SSS Beginner's Box with introductory material on solid state oscillator design with links to lots of related information and application notes.
Voltage Controlled Oscillator Design	An SSS Beginner's Box with introductory material on VCO design and links to related information and theses.
Voltage Controlled Crystal Oscillator Design	An SSS Beginner's Box with introductory material and links on these tricky gizmos!
Technical Topic: All About Correlators	A reprinted article from SSS Online's paper past, with introductory information on how correlators can be used in spread spectrum acquisition, and tracking of code phase, carrier frequency and data clock.

Related Subjects

For more information on RF & Spread Spectrum design, click on the Design Topics button on the left hand menu bar, or on one of the related links below:

Subject Name
Eb/N0 Article SS Primer Tutorial PN Codes	SS Acquisition SS Synchronization Tips SS Design Examples

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