View source for Biology:Amiga video connector

{{Infobox connector
|name=Amiga video connector
|type=Analogue [[Engineering:Video|video]] connector
|image=<!-- Missing image removed: [[Image:Amiga video connector.jpg|300px]] --><!-- http://www.amiga-hardware.com/showhardware.cgi?HARDID=8 -->
|caption=A male 23-pin [[Engineering:D-subminiature|D-subminiature]] connector
|design_date=1980s
|manufacturer=
|production_date=
|video_signal=Analogue RGB and Digital Red-Green-Blue-Intensity
|num_pins=23
|pinout_image=<!-- Missing image removed: [[Image:Amiga video connector pinout.svg|300px]] -->
|pinout_caption=Male connector seen from the front <ref>{{cite web|title=Amiga Auckland Technical DB23 Video |url=http://www.titan.co.nz/Amigaak/AA060139.htm |url-status=dead |archiveurl=https://web.archive.org/web/20081014115024/http://www.titan.co.nz/amigaak/AA060139.htm |archivedate=2008-10-14 }} 080809 titan.co.nz (originally Amiga 3000T manual)</ref>
|pin1=XCLK External [[Clock signal|Clock]]
|pin2=XCLKEN External Clock Enable
|pin3=RED Analog Red
|pin4=GREEN Analog Green
|pin5=BLUE Analog Blue
|pin6=DI Digital Intensity (47 [[Ohm]])
|pin7=DB Digital Blue (47 Ohm)
|pin8=DG Digital Green (47 Ohm)
|pin9=DR Digital Red (47 Ohm)
|pin10=CSYNC Composite Sync (used for all monitor cables)
|pin11=HSYNC Horizontal Sync (47 Ohm)
|pin12=VSYNC Vertical Sync (47 Ohm)
|pin13=GNDRTN Return for XCLKEN (don't connect to GND)
|pin14=ZD Zero Detect (47 Ohm)
|pin15=C1 Clock Out
|pin16=[[Physics:Ground (electricity)|GND]] red  
|pin17=GND green
|pin18=GND blue
|pin19=GND HVsync
|pin20=GND video
|pin21=-12 [[Volt]] [[Physics:Direct current|DC]] (50 [[Ampere|mA]]) / -5V
|pin22=+12 Volt DC (100 mA)
|pin23=+5 Volt DC (100 mA)
}}
The '''Amiga video connector''' is a 23-pin male [[Engineering:D-subminiature|D-subminiature]] connector fitted to all personal computers in the [[Engineering:Amiga|Amiga]] range produced by [[Company:Commodore International|Commodore International]] from 1985 to 1994, and by [[Company:Escom AG|Escom]] from 1995 to 1996. The connector carries signals for analogue and digital [[RGB color model|RGB]], RGB intensity, and [[Engineering:Genlock|genlocking]] as well as power. 

Default Amiga screen modes are directly compatible with TVs in the region in which the computer was sold, so that the user could connect the computer to a common TV if no monitor was available. In the [[Engineering:PAL|PAL]] region, the Amiga could be connected directly to the standardized [[Engineering:SCART|SCART]] RGB connector on the TV via an adapter cable sold by Commodore, providing superior image quality. [[Image:Amiga_520_1.jpg|thumb|The Amiga 520 adapter allowed for [[Engineering:RF modulator|RF modulated]] and [[Composite video|composite video]] output, to be connected to a TV|left]]
Alternatively, Commodore sold an adapter (the '''A520'''), that attached to the Amiga video connector and provided [[Composite video|composite]] and RF outputs appropriate to the region in which it was sold.<ref>{{Cite web |date=2013 |title=A520 |url=https://bigbookofamigahardware.com/bboah/product.aspx?id=725 |access-date=2023-05-16 |website=Big Book of Amiga Hardware}}</ref> 

Commodore also sold a range of monitors, which were compatible with the TV signals of the region in which they were sold, and in the PAL region many even had SCART inputs so that not only Amigas, but also other SCART-compatible equipment (such as [[Engineering:Videocassette recorder|VCRs]]) could be attached to them.

While most first and second generation Amigas (with the [[Engineering:Original Chip Set|original]] and the [[Engineering:Amiga Enhanced Chip Set|enhanced graphics chipsets]]) only could output TV compatible screen modes (15&nbsp;kHz [[Engineering:Horizontal scan rate|horizontal scan rate]]), the [[Engineering:Amiga 3000|Amiga 3000]] also featured a connector for VGA type monitors, providing deinterlaced or scan-doubled 31&nbsp;kHz scan rate. 

The third and last generation of Amiga computers (with the [[Engineering:Advanced Amiga Architecture chipset|Advanced Graphics Array]] chipset) could output a wide range of resolutions and scan rates, and Commodore introduced a line of multisync monitors to accommodate this. These computers could also output directly to the VGA monitors that by then had become commonplace, provided they were configured to output in a VGA compatible resolution and refresh rate. To enable this, Commodore sold an adapter which, like the A520, attached to the video connector to provide a standard VGA connector.

== See also ==
* [[Engineering:Amiga|Amiga]]
* [[List of video connectors]]

== External links ==
* [http://www.bigbookofamigahardware.com/bboah/product.aspx?id=725 BigBookOfAmigaHardware.com Commodore A520 RF modulator]

== References ==
<references/>

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{{Amiga hardware}}

[[Category:Amiga]]
[[Category:Analog video connectors]]
[[Category:Audiovisual connectors]]
[[Category:Film and video technology]]



{{Sourceattribution|Amiga video connector}}