Engineering Electronics

Links

• United States Frequency Allocations
• Mentor Graphics PCB Design
• Quadrature Signals Explained
• Software Defined Radio Links
  • R2 DSP (an early software defined radio using a dedicated DSP)
  • Softrock and Theory
  • Softrock Build Instructions and Notes
  • Softrock Yahoo Interest Group
  • This collection of Software Defined Radio publications is fantastic.
  • SDRadio
  • Open High Performance Software Defined Radio
  • Tayloe Mixer
  • Vector Network Analyzer Basics
  • M-Audio Delta 44 Sound Card Manual This manual has useful specifications for determining the gain necessary for your software designed radio project.
  • Filter Design in 30 seconds
  • Bandpass Filter Calculator
  • What is an Si570 and why do I want one?
• SDR Using Realtek RTL2832U
  • FunCube Upconverter
  • The Wiki on this SDR.
  • An HF Converter for this SDR
  • List of compatible tuners

• Wideband Transformers
  • wideband transformers
  • more wideband transformers (PDF)
  • Transmission Line Transformers Tutorial by Chris Trask
  • Transmission Line Transformers, by Jerry Sevick (who wrote the book)

• LVDS to PECL Interface
• Positive Supply for ECL logic
• Voltage regulators put out noise that can make for poor SDR receiver performance. Here is a clever solution. It also works for instrumentation amplifiers and other noise sensitive circuits.

• Good links that explain how Radio originated
  • Radio Development
  • Introduction to Software Defined Radio

• Kicad
  • Si570 Libraries
  • The USB to Si570 interface design files
  • Schematic
  • Good Kicad Tutorial Video 1
  • Good Kicad Tutorial Video 2
  • KiCad Step By Step Tutorial PDF
  • KiCad schematic and layout Guides
  • KiCad Tutorial

• Circuit Board Layout Hints
  • [Reduce the likelihood of noise and oscillation problems.
  • Daniel Colls - Parallel traces are often susceptible to cross-talk. These should be separated by at least 2 trace widths for cross-talk reduction. when talking about Circuit Layout.
  • Andrew Bylard - Use a stripline circuit when you have two parallel ground planes to give enhanced noise immunity against the propagation of radiated RF emissions.

2012 Contributors

1. Fleming, Trent
2. Kara Moon
3. User:Daniel.Colls

2010 Contributors

1. Fong, Greg
2. Henry, Ben
3. Lau, Chris
4. Shepherd,Victor
5. Vier, Michael

2011 Contributors

1. Haddad, Brian
2. von Pohle, Michael
3. Blaire, Matthew (Included in my name tag is Experimentation with LTspice)
4. Cody Lorenz

2010 Articles

• Ideal vs. Nonideal Op Amps
• Chapter 1
• Chapter 2
• Basic Op Amp circuits
• Key Facts from Reading Chapter 1
• Golden Rules
• Integrator_Amplifier (by Ben)
• Circuit Board Layout Wisdom

Draft Articles

These articles are not ready for reading and error checking. They are listed so people will not simultaneously write about similar topics.

• Chapter 3 Problems by Ben
• Disecting an Instrumentation Amplifier via Superposition
• Reading from Chapter 4

Draft Articles awaiting review

• Feedback in Amplifiers

Contributing Articles

• Generalized Transmitter (in progress, Luke)
• Generalized Receiver (in progress, Luke)
• Electronics Receiver (in progress, Kevin)
• Generalized Receiver (Nick Christman)
• Generalized Receiver Explanation (Jodi Hodge)
• Eric's Generalized Receiver Explanation (Eric Clay)
• Yet another Generalized Receiver Explanation (Joshua Sarris)