Difference between revisions of "Engineering Electronics"

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(Software Defined Radio Links)
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* [http://edn.com/design/analog/4430367/Bandpass-filter--adjustable-Q--constant-maximum-gain-with-two-op-amps-?_mc=NL_EDN_EDT_EDN_today_20140528&cid=NL_EDN_EDT_EDN_today_20140528&elq=bb2b3d0f43ee4bd281ba30eaf0bdea16&elqCampaignId=17264 Twin T Bandpass Filter with Adjustable Q]
 
* [http://edn.com/design/analog/4430367/Bandpass-filter--adjustable-Q--constant-maximum-gain-with-two-op-amps-?_mc=NL_EDN_EDT_EDN_today_20140528&cid=NL_EDN_EDT_EDN_today_20140528&elq=bb2b3d0f43ee4bd281ba30eaf0bdea16&elqCampaignId=17264 Twin T Bandpass Filter with Adjustable Q]
 
===Software Defined Radio Links===
 
===Software Defined Radio Links===
**[http://people.wallawalla.edu/~Rob.Frohne/R2_DSP/9804x040.pdf R2 DSP (an early software defined radio using a dedicated DSP)]
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*[http://people.wallawalla.edu/~Rob.Frohne/R2_DSP/9804x040.pdf R2 DSP (an early software defined radio using a dedicated DSP)]
**[http://www.nonstopsystems.com/radio/frank_radio_sdr.htm Softrock and Theory]
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*[http://www.nonstopsystems.com/radio/frank_radio_sdr.htm Softrock and Theory]
**[http://www.wb5rvz.com/sdr/ Softrock Build Instructions and Notes]
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*[http://www.wb5rvz.com/sdr/ Softrock Build Instructions and Notes]
**[http://groups.yahoo.com/group/softrock40/ Softrock Yahoo Interest Group]
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*[http://groups.yahoo.com/group/softrock40/ Softrock Yahoo Interest Group]
**[http://www.sm5bsz.com/linuxdsp/hware/softrock/softrock.htm This is a very interesting article on optimizing the performance of the Softrock radio. It is good design review of the Softrock receiver.]
+
*[http://www.sm5bsz.com/linuxdsp/hware/softrock/softrock.htm This is a very interesting article on optimizing the performance of the Softrock radio. It is good design review of the Softrock receiver.]
**[http://www.qrpkits.com/files/SchematicsFFSDRv1-1large.JPG Firefly SDR] uses Dan Tayloe's mixer.
+
*[http://www.qrpkits.com/files/SchematicsFFSDRv1-1large.JPG Firefly SDR] uses Dan Tayloe's mixer.
**[http://www.flex-radio.com/News.aspx?topic=publications This collection of Software Defined Radio publications is fantastic.]
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*[http://www.flex-radio.com/News.aspx?topic=publications This collection of Software Defined Radio publications is fantastic.]
**[http://www.sdradio.eu/sdradio/ SDRadio]
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*[http://www.sdradio.eu/sdradio/ SDRadio]
**[http://ra3wdk.qrz.ru/SDR.htm RA3WDK SDR Receiver (uses diode mixers)]
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*[http://ra3wdk.qrz.ru/SDR.htm RA3WDK SDR Receiver (uses diode mixers)]
**[http://openhpsdr.org/ Open High Performance Software Defined Radio]
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*[http://openhpsdr.org/ Open High Performance Software Defined Radio]
**[http://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf Tayloe Mixer]
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*[http://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf Tayloe Mixer]
***[[Octave Simulation of a Tayloe Sampling Mixer]]
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*[[Octave Simulation of a Tayloe Sampling Mixer]]
**[http://www.m-audio.com/images/global/manuals/Delta44_Manual.pdf M-Audio Delta 44 Sound Card Manual] This manual has useful specifications for determining the gain necessary for your software designed radio project.
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*[http://www.m-audio.com/images/global/manuals/Delta44_Manual.pdf M-Audio Delta 44 Sound Card Manual] This manual has useful specifications for determining the gain necessary for your software designed radio project.
**[http://focus.ti.com/lit/an/sloa093/sloa093.pdf Filter Design in 30 seconds]
+
*[http://focus.ti.com/lit/an/sloa093/sloa093.pdf Filter Design in 30 seconds]
**[http://www.raltron.com/cust/tools/band_pass_filters.asp Bandpass Filter Calculator]
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*[http://www.raltron.com/cust/tools/band_pass_filters.asp Bandpass Filter Calculator]
**[http://qucs.sourceforge.net/ Quite Universal Circuit Simulator] Useful for designing and simulating circuits. Can synthesize filter circuits.
+
*[http://qucs.sourceforge.net/ Quite Universal Circuit Simulator] Useful for designing and simulating circuits. Can synthesize filter circuits.
**[http://www.cliftonlaboratories.com/si570_kit_from_k5bcq.htm#What_is_an_Si570_and_why_do_I_want_one What is an Si570 and why do I want one?]
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*[http://www.cliftonlaboratories.com/si570_kit_from_k5bcq.htm#What_is_an_Si570_and_why_do_I_want_one What is an Si570 and why do I want one?]
**[https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf The Si5351 is a good cheap programmable oscillator] with either three or eight outputs. It has pretty good phase noise.
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*[https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf The Si5351 is a good cheap programmable oscillator] with either three or eight outputs. It has pretty good phase noise.
***[https://github.com/etherkit/Si5351Arduino It is used by ham radio enthusiasts with Arduino] controllors.
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**[https://github.com/etherkit/Si5351Arduino It is used by ham radio enthusiasts with Arduino] controllors.
**[http://files.radioscanner.ru/files/download/file5912/u070262.pdf First steps in Software Defined Radio (SDR)]
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*[http://files.radioscanner.ru/files/download/file5912/u070262.pdf First steps in Software Defined Radio (SDR)]
**[http://www.ece.ucsb.edu/Faculty/rodwell/Classes/ece218b/notes/Mixer1.pdf Mixer theory]
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*[http://www.ece.ucsb.edu/Faculty/rodwell/Classes/ece218b/notes/Mixer1.pdf Mixer theory]
**[https://docs.google.com/viewer?url=http%3A%2F%2Fclass.ece.iastate.edu%2Fdjchen%2Fee507%2FMixer%2520Design.ppt A very nice 115 slide powerpoint presentation] on mixers from Iowa State University. It discusses metrics of mixers, and has a very nice discussion of the different types, advantages and disadvantages of each.
+
*[https://docs.google.com/viewer?url=http%3A%2F%2Fclass.ece.iastate.edu%2Fdjchen%2Fee507%2FMixer%2520Design.ppt A very nice 115 slide powerpoint presentation] on mixers from Iowa State University. It discusses metrics of mixers, and has a very nice discussion of the different types, advantages and disadvantages of each.
**[http://www.qsl.net/va3iul/RF%20Mixers/RF_Mixers.pdf Theory and Comparison of Various RF Mixers]
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*[http://www.qsl.net/va3iul/RF%20Mixers/RF_Mixers.pdf Theory and Comparison of Various RF Mixers]
**[http://yu1lm.qrpradio.com/dc%20rx%20yu1lm.htm Serbian SDR and other radios]
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*[http://yu1lm.qrpradio.com/dc%20rx%20yu1lm.htm Serbian SDR and other radios]
**[http://www.qrz.lt/ly1gp/SDR/ TinySDR and others]
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*[http://www.qrz.lt/ly1gp/SDR/ TinySDR and others]
**[http://www.elektor.com/uploads/2011/8/50-00027.pdf Elektor SDR]
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*[http://www.elektor.com/uploads/2011/8/50-00027.pdf Elektor SDR]
**[http://whiteboard.ping.se/SDR/IQ A nice pictorial description of I/Q data]
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*[http://whiteboard.ping.se/SDR/IQ A nice pictorial description of I/Q data]
**[https://www.youtube.com/watch?v=JuuKF1RFvBM Jim William's very helpful video] of mixers and especially I/Q ones using the Tayloe method
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*[https://www.youtube.com/watch?v=JuuKF1RFvBM Jim William's very helpful video] of mixers and especially I/Q ones using the Tayloe method
   
*SDR Using Realtek RTL2832U
+
====SDR Using Realtek RTL2832U====
**[http://www.george-smart.co.uk/wiki/FunCube_Upconverter FunCube Upconverter]
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*[http://www.george-smart.co.uk/wiki/FunCube_Upconverter FunCube Upconverter]
**[http://sdr.osmocom.org/trac/wiki/rtl-sdr The Wiki on this SDR.]
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*[http://sdr.osmocom.org/trac/wiki/rtl-sdr The Wiki on this SDR.]
**[http://www.ct1ffu.com/site/hf-converter.pdf An HF Converter for this SDR]
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*[http://www.ct1ffu.com/site/hf-converter.pdf An HF Converter for this SDR]
**[http://www.reddit.com/r/RTLSDR/comments/s6ddo/rtlsdr_compatibility_list_v2_work_in_progress/ List of compatible tuners]
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*[http://www.reddit.com/r/RTLSDR/comments/s6ddo/rtlsdr_compatibility_list_v2_work_in_progress/ List of compatible tuners]
**[http://pinouts.ru/Slots/USB_pinout.shtml USB Pinouts and Other Details]
+
*[http://pinouts.ru/Slots/USB_pinout.shtml USB Pinouts and Other Details]
*Phase Locked Loops
+
====Phase Locked Loops====
**[http://www.ece.ucsb.edu/~long/ece594a/PLL_intro_594a_s05.pdf Phase Locked Loop Circuits, S. Long, UCSB]
+
*[http://www.ece.ucsb.edu/~long/ece594a/PLL_intro_594a_s05.pdf Phase Locked Loop Circuits, S. Long, UCSB]
 
*[http://cp.literature.agilent.com/litweb/pdf/5989-9103EN.pdf Gilbert Cell Mixers]
 
*[http://cp.literature.agilent.com/litweb/pdf/5989-9103EN.pdf Gilbert Cell Mixers]
 
*[http://www.pericom.com/pdf/applications/AN047.pdf LVDS to PECL Interface]
 
*[http://www.pericom.com/pdf/applications/AN047.pdf LVDS to PECL Interface]

Revision as of 10:30, 16 February 2018

Links

Common Emitter/Common Collector Amplifier Example

LTSpice

LTSpice Getting Started Guide LTSpice is a good simulator and runs on Windows, Linux (under wine), and OS X.

Qucs Simulations

Software Defined Radio Links

SDR Using Realtek RTL2832U

Phase Locked Loops

Wideband Transformers

Transformer Design

Capacitors

  • Murata's comparison of monolithic ceramic capacitors as compared to Tantalum capacitors. Note that monolithic ceramic capacitors values decrease if you put larger DC voltages across them though. The effective series resistance and temperature behavior are much better though.
  • The markings on capacitors are often based on pF. There will be three digits, like 104 for 0.1uF. The first two digits are the digits of the value, and the next number is the number of zeros to add after that to denote the capacitance in pF. Thus 104 in 10 * 1e4 pF.

Transmission Lines

Smith Chart

Vector Network Analyzer Links

Kicad

Circuit Board Layout Hints

Contributors

  • 2013 Contributors
  1. Eric Wilson
  2. Michael Swan
  3. Alexander Beckner
  4. Brian Clark
  5. Brian Lenz
  6. Travis deFluiter
  7. Tobias
  8. Heidi Tupper
  • 2012 Contributors
  1. Fleming, Trent
  2. Kara Moon
  3. User:Daniel.Colls
  4. Andrew Bylard
  5. Ted Shaw
  6. Denver Lodge
  7. Benjamin Maloon
  • 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

Draft Articles

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

Draft Articles awaiting review

Contributing Articles