ABC of electronics terms

Click on the first letter of the electronic term you're looking for:
0..9	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X	Y	Z

(To find chips for distinct functions, see the functional pages.)

V

Varactor

A diode used as a capacitor. Its capacitance varies versus voltage. Used in tuning circuits, PLLs, etc. Normally reverse-biased. The "depletion region" around the physical junction is an insulating space between the two conducting regions; it's width depends on voltage. All diodes do this, but varactors are optimized to be used this way.
Andy

www.americanmicrosemi.com/tutorials/varactor.htm

VCO

Voltage Controlled Oscillator

Where	Manufacturer
www.amplifonix.com/	Amplifonix

VGA

Video Graphics Array (=EGA+) from IBM's PS/2-series PC's, copied as the industry standard's PC-color-card.

www.datashopper.dk/~finth/	Doc's about a lot of VGA cards!
www.faqs.org/faqs/by-newsgroup/comp/comp.sys.ibm.pc.hardware.video.html	FAQ about 3D cards

VHDL

Very High Speed Integrated Circuit (VHSIC) Hardware Description Language.

A standard worldwide language for the design and description of electronic systems.

See Free Model Foundation

www.gmvhdl.com/VHDL.html	Introduction to VHDL
www.vhdl.org/	VHDL International User's Forum

See also CPLD and FPGA as a cheap way to implement VHDL design's.

Video

www.oh-bugger.net.nz/ (in new window)	Video monitor test patterns
www.oreilly.com/reference/dictionary/terms/V/Video.htm	O'Reilly
www.pco.de/	PCO
nyquist.ee.ualberta.ca/pub/cookbook/video/	In the Circuit Cookbook

Very helpful is a book by Keith Jack: 'Video demystified'.
High Text Publications.
This book is offered for free by Harris Semiconductor.

Video Camera

Camera for recording video movies.

Subject: Complete B&W Video Camera on a Chip

Complete B&W Video Camera on a Chip from Marshall Electronics, Inc.

All video circuitry built into a single CMOS* sensor
outputs directly to standard 75 ohm video monitor
320(H)*240(V) Pixel array
Sensitivity is 0.9 lux (f1.4)
Operates up to 35 hours on a 9V Lithium battery
(24 hrs. on Alkaline battery)
6-18 VDC Supply voltage
Lenses: 2.1mm, 2.9mm, 3.6mm, 5.7mm, 8mm,
12mm & pinhole

Culver City, CA - The Optical Systems Division of Marshall Electronics introduces another breakthrough in low-cost camera technology.
The single CMOS* sensor is the first commercially available camera on a chip made entirely in the USA.
All functions except for the lens are built into the small CMOS* device.

www.mars-cam.com/cmos.html

Video Card

A card to push in your PC that enables you to see things on your monitor.

local	Video card insiders info
www.diamondmm.com/	Diamond Multimedia
www.aceshardware.com/Spades/read.php?article_id=80	A long look at the GeForce256

Virus (computer-)

Malicious computer program or part of a program that enters the computer without permission, spreads itself (on the computer and to other computers) and often destroys data on the computer.

www.howstuffworks.com/virus.htm

How it works

VLB

Vesa Local Bus

local

About the VESA* Local Bus by Mark Sokos

VLSI

Very Large Scale Integration. The more complex chips, so not the basic 7400 glue chips, or the medium density peripheral chips. But this is a shifting notion of course.

Book:

title	order at Amazon USA	price indication
Atlas Of IC* Technologies; An Introduction to VLSI processes	ISBN: 0805368507	$35

VME

Industrial bus, originally for 68000 boards.

www.faqs.org/faqs/by-newsgroup/comp/comp.arch.bus.vmebus.html	FAQ
nyquist.ee.ualberta.ca/archive/vmefaq.html	FAQ

Voice

Human voice

See Speech

VT-100

Famous terminal from DEC.

local

Escape code definitions

VXCO

Where	Manufacturer
www.vectronlabs.com/	Vectron Labs Inc

Click on the first letter of the electronic term you're looking for:
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Ad for PCI video capturing boards by Dektec.

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