Audio and video connector
Encyclopedia
Audio connectors and video connectors are electrical connector
s (or optical connectors) for carrying audio signal
and video signal, of either analog or digital
format. Analog A/V connectors often use Shielded cable
to inhibit radio frequency interference (RFI) and noise
.
s designed and used for audio
frequencies. They can be analog or digital
. Common audio connectors include:
For computers:
There are exceptions to the above:
signals. Common video-only connectors include:
Newer connectors are identified by their shape and not their colour.
Other composite connectors that carry video, audio, power, and USB
:
:Category:Digital display connectors
:Category:Telecommunications standards
Electrical connector
An electrical connector is an electro-mechanical device for joining electrical circuits as an interface using a mechanical assembly. The connection may be temporary, as for portable equipment, require a tool for assembly and removal, or serve as a permanent electrical joint between two wires or...
s (or optical connectors) for carrying audio signal
Audio signal
An audio signal is an analog representation of sound, typically as an electrical voltage. Audio signals may be synthesized directly, or may originate at a transducer such as a microphone, musical instrument pickup, phonograph cartridge, or tape head. Loudspeakers or headphones convert an electrical...
and video signal, of either analog or digital
Digital
A digital system is a data technology that uses discrete values. By contrast, non-digital systems use a continuous range of values to represent information...
format. Analog A/V connectors often use Shielded cable
Shielded cable
A shielded or screened cable is an electrical cable of one or more insulated conductors enclosed by a common conductive layer. The shield may be composed of braided strands of copper , a non-braided spiral winding of copper tape, or a layer of conducting polymer. Usually, this shield is covered...
to inhibit radio frequency interference (RFI) and noise
Noise
In common use, the word noise means any unwanted sound. In both analog and digital electronics, noise is random unwanted perturbation to a wanted signal; it is called noise as a generalisation of the acoustic noise heard when listening to a weak radio transmission with significant electrical noise...
.
Audio only
Audio connectors are electrical connectorElectrical connector
An electrical connector is an electro-mechanical device for joining electrical circuits as an interface using a mechanical assembly. The connection may be temporary, as for portable equipment, require a tool for assembly and removal, or serve as a permanent electrical joint between two wires or...
s designed and used for audio
Sound
Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations.-Propagation of...
frequencies. They can be analog or digital
Digital
A digital system is a data technology that uses discrete values. By contrast, non-digital systems use a continuous range of values to represent information...
. Common audio connectors include:
- Single-conductor connectors:
- Banana connectorBanana connectorA banana connector is a single-wire electrical connector used for joining wires to equipment. The term 4 mm connector is also used, especially in Europe, although not all banana connectors will mate with 4mm parts...
s - Five-way binding postsBinding postA binding post is a connector commonly used on electronic test equipment to terminate a single wire or test lead. They are also found on loudspeakers and audio amplifiers as well as other electrical equipment....
and banana plugsBanana connectorA banana connector is a single-wire electrical connector used for joining wires to equipment. The term 4 mm connector is also used, especially in Europe, although not all banana connectors will mate with 4mm parts...
for loudspeakerLoudspeakerA loudspeaker is an electroacoustic transducer that produces sound in response to an electrical audio signal input. Non-electrical loudspeakers were developed as accessories to telephone systems, but electronic amplification by vacuum tube made loudspeakers more generally useful...
s - Fahnestock clipFahnestock clipA Fahnestock clip is an early technology for a electrical terminal. It is still used occasionally in educational electronic kits and teaching laboratories in schools. It is designed to grip a bare wire securely, yet release it with the push of a tab. The clip was patented February 26, 1907by...
s on early breadboardBreadboardA breadboard is a construction base for prototyping of electronics. The term is commonly used to refer to solderless breadboard ....
radio receivers.
- Banana connector
- Multi-conductor connectors:
- DB25D-subminiatureThe D-subminiature or D-sub is a common type of electrical connector. They are named for their characteristic D-shaped metal shield. When they were introduced, D-subs were among the smaller connectors used on computer systems....
is for multi-track recording and other multi-channel audio, analog or digital - DINDIN connectorA DIN connector is a connector that was originally standardized by the , the German national standards organization. There are DIN standards for a large number of different connectors, therefore the term "DIN connector" alone does not unambiguously identify any particular type of connector unless...
connectors and mini-DIN connectors - RCA connectorRCA connectorAn RCA connector, sometimes called a phono connector or cinch connector, is a type of electrical connector commonly used to carry audio and video signals...
s, also known as phono connectors or phono plugs, used for analog or digital audio or analog video - Speakon connectorSpeakon connectorThe Speakon is a type of cable connector, originally manufactured by Neutrik, mostly used in professional audio systems for connecting loudspeakers to amplifiers. The same manufacturer produces another connector dubbed PowerCon, which is designed to carry mains power rather than audio signal...
s by NeutrikNeutrikNeutrik is a Liechtenstein company which manufactures connectors which are used in audio and video recording studios and concert sound systems. Their product range includes XLR-type connectors, speakON connectors, powerCON connectors, patch bays, BNC connectors and special connectors for industrial...
for loudspeakerLoudspeakerA loudspeaker is an electroacoustic transducer that produces sound in response to an electrical audio signal input. Non-electrical loudspeakers were developed as accessories to telephone systems, but electronic amplification by vacuum tube made loudspeakers more generally useful...
s - TRS connectorTRS connectorA TRS connector is a common family of connector typically used for analog signals including audio. It is cylindrical in shape, typically with three contacts, although sometimes with two or four . It is also called an audio jack, phone jack, phone plug, and jack plug...
also known as tip-ring-sleeve plug, phone plug, jack plug, mini-jack, and mini-stereo. This includes the original 6.35mm (quarter inch) jack and the more recent 3.5mm (miniature or 1/8 inch) and 2.5mm (subminiature) jacks, both mono and stereo (balanced) versions. - XLR connectorXLR connectorThe XLR connector is a style of electrical connector, primarily found on professional audio, video, and stage lighting equipment. The connectors are circular in design and have between 3 and 7 pins...
s, also known as Cannon plugs, used for analog or digital balanced audioBalanced audioBalanced audio is a method of interconnecting audio equipment using impedance-balanced lines. This type of connection is very important in sound recording and production because it allows for the use of long cables while reducing susceptibility to external noise.Balanced connections use...
with a balanced lineBalanced lineIn telecommunications and professional audio, a balanced line or balanced signal pair is a transmission line consisting of two conductors of the same type, each of which have equal impedances along their lengths and equal impedances to ground and to other circuits. The chief advantage of the...
- DB25
- Digital audio interfaces and interconnects:
- ADATADATAlesis Digital Audio Tape or ADAT is a magnetic tape format used for the simultaneous digital recording of eight analog audio or digital audio tracks at once, onto a Super VHS tape that is used by consumer VCRs.- History :...
interface (DB25) - AES/EBUAES/EBUAES3 is the standard used for the transport of digital audio signals between professional audio devices. It is also known as AES/EBU and is published by the Audio Engineering Society and as part of IEC 60958. It was developed by the AES and the European Broadcasting Union and first published in...
interface, normally with XLR connectorXLR connectorThe XLR connector is a style of electrical connector, primarily found on professional audio, video, and stage lighting equipment. The connectors are circular in design and have between 3 and 7 pins... - S/PDIFS/PDIFS/PDIF is a digital audio interconnect used in consumer audio equipment over relatively short distances. The signal is transmitted over either a coaxial cable with RCA connectors or a fiber optic cable with TOSLINK connectors. S/PDIF interconnects components in home theaters and other digital high...
, either over electrical coaxial cableCoaxial cableCoaxial cable, or coax, has an inner conductor surrounded by a flexible, tubular insulating layer, surrounded by a tubular conducting shield. The term coaxial comes from the inner conductor and the outer shield sharing the same geometric axis...
(with RCA jackRCA connectorAn RCA connector, sometimes called a phono connector or cinch connector, is a type of electrical connector commonly used to carry audio and video signals...
s) or optical fiberOptical fiberAn optical fiber is a flexible, transparent fiber made of a pure glass not much wider than a human hair. It functions as a waveguide, or "light pipe", to transmit light between the two ends of the fiber. The field of applied science and engineering concerned with the design and application of...
(TOSLINKTOSLINKTOSLINK is a standardized optical fiber connection system. Also known generically as an "optical audio cable," its most common use is in consumer audio equipment , where it carries a digital audio stream from components such as MiniDisc, CD and DVD players, DAT recorders, computers, and modern...
).
- ADAT
Color codes
white RCA/TS | analogue audio, left channel; also mono Monaural Monaural or monophonic sound reproduction is single-channel. Typically there is only one microphone, one loudspeaker, or channels are fed from a common signal path... (RCA/TS), stereo (TRS only), or undefined/other |
black RCA/TS/TRS | |
grey RCA/TS/TRS | |
red RCA/TS | analogue audio, right channel |
orange RCA | SPDIF digital audio |
For computers:
green TRS 3.5mm | stereo output, front channels |
black TRS 3.5mm | stereo output, rear channels |
grey TRS 3.5mm | stereo output, side channels |
gold TRS 3.5mm | dual output, center and subwoofer Subwoofer A subwoofer is a woofer, or a complete loudspeaker, which is dedicated to the reproduction of low-pitched audio frequencies known as the "bass". The typical frequency range for a subwoofer is about 20–200 Hz for consumer products, below 100 Hz for professional live sound, and below... |
blue TRS 3.5mm | stereo input, line level Line level Line level is a term used to denote the strength of an audio signal used to transmit analog sound between audio components such as CD and DVD players, TVs, audio amplifiers, and mixing consoles, and sometimes MP3 players.... |
pink TS 3.5mm | mono microphone Microphone A microphone is an acoustic-to-electric transducer or sensor that converts sound into an electrical signal. In 1877, Emile Berliner invented the first microphone used as a telephone voice transmitter... input |
There are exceptions to the above:
- Hosa cables use grey and orange for left and right analogue channels.
- RadioShackRadioShackRadioShack Corporation is an American franchise of electronics retail stores in the United States, as well as parts of Europe, South America and Africa. As of 2008, RadioShack reported net sales and operating revenues of $4.81 billion. The headquarters of RadioShack is located in Downtown...
cables sometimes use grey and black for left and right. - Older sound cardSound cardA sound card is an internal computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs. The term sound card is also applied to external audio interfaces that use software to generate sound, as opposed to using hardware...
s had non-standard colour codes until after PC99, prior to that there were no colours at all.
Video only
Video connectors carry only videoVideo
Video is the technology of electronically capturing, recording, processing, storing, transmitting, and reconstructing a sequence of still images representing scenes in motion.- History :...
signals. Common video-only connectors include:
- Component videoComponent videoComponent video is a video signal that has been split into two or more component channels. In popular use, it refers to a type of component analog video information that is transmitted or stored as three separate signals...
aka YPbPrYPbPr' is a color space used in video electronics, in particular in reference to component video cables. is the analog version of the YCBCR color space; the two are numerically equivalent, but YPBPR is designed for use in analog systems whereas YCBCR is intended for digital video. cables are also...
(3 RCARCA connectorAn RCA connector, sometimes called a phono connector or cinch connector, is a type of electrical connector commonly used to carry audio and video signals...
or BNCBNC connectorThe BNC connector ' is a common type of RF connector used for coaxial cable. It is used with radio, television, and other radio-frequency electronic equipment, test instruments, video signals, and was once a popular computer network connector. BNC connectors are made to match the characteristic...
; or D-Terminal) - Composite videoComposite videoComposite video is the format of an analog television signal before it is combined with a sound signal and modulated onto an RF carrier. In contrast to component video it contains all required video information, including colors in a single line-level signal...
(1 RCARCA connectorAn RCA connector, sometimes called a phono connector or cinch connector, is a type of electrical connector commonly used to carry audio and video signals...
, Antenna socket, or BNCBNC connectorThe BNC connector ' is a common type of RF connector used for coaxial cable. It is used with radio, television, and other radio-frequency electronic equipment, test instruments, video signals, and was once a popular computer network connector. BNC connectors are made to match the characteristic...
) - DB13W3DB13W3DB13W3 is a particular style of D-subminiature connector commonly used as an analog video interface connector that was used primarily on Sun Microsystems, Silicon Graphics and IBM RISC workstations, as well as some displays from Apple Computer, NeXT Computer and Intergraph Corporation...
("13W3" computer video connector) - DMS-59DMS-59DMS-59 is a 59-pin electrical connector generally used for computer video cards. It provides two DVI or VGA outputs on a single connector. An adapter cable is needed for conversion from DMS-59 to DVI or VGA , and different types of adapter cables exist...
, single connector carrying two DVI and two VGA - MusaMusa connectorThe Musa connector is a type of coaxial connector, originally developed for the manual switching of radar signals. It had a characteristic impedance of 50 Ω, and was adopted for use in the emerging broadcast industry...
, British connector used in broadcasting and telecommunications - PAL connectorTV Aerial PlugDomestic antenna plugs and sockets are devices that connect the TV set to the TV antenna so that TV signals can flow to them using a tuner .Antenna plugs are male antenna connectors that fit into female antenna sockets....
, common in EuropeEuropeEurope is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...
as an antenna connector - S-VideoS-VideoSeparate Video, more commonly known as S-Video and Y/C, is often referred to by JVC as both an S-VHS connector and as Super Video. It is an analog video transmission scheme, in which video information is encoded on two channels: luma and chroma...
(1 Mini-DIN) - SDISerial Digital InterfaceSerial digital interface is a family of video interfaces standardized by SMPTE. For example, ITU-R BT.656 and SMPTE 259M define digital video interfaces used for broadcast-grade video...
- Broadcast grade digital interface over BNCBNC connectorThe BNC connector ' is a common type of RF connector used for coaxial cable. It is used with radio, television, and other radio-frequency electronic equipment, test instruments, video signals, and was once a popular computer network connector. BNC connectors are made to match the characteristic...
cables - VGA connectorVGA connectorA Video Graphics Array connector is a three-row 15-pin DE-15 connector. The 15-pin VGA connector is found on many video cards, computer monitors, and some high definition television sets...
A type of D-sub connector standard on most video cards - Mini-VGAMini-VGAMini-VGA connectors are used on some laptops and other systems in place of the standard VGA connector, although most laptops use a standard VGA connector. Apple and HP have separate implementations using the same name...
Found on some laptop computers - 5 BNC Connectors can also be used to carry the VGA signal as R, G, B, HSync, VSync
- Digital Visual InterfaceDigital Visual InterfaceThe Digital Visual Interface is a video interface standard covering the transmission of video between a source device and a display device. The DVI standard has achieved widespread acceptance in the PC industry, both in desktop PCs and monitors...
(DVI) A hybrid analog/digital connector commonly found on PC graphics cards and LCD monitors - Mini-DVIMini-DVIThe Mini-Dvi connector is used on certain Apple computers as a digital alternative to the Mini-VGA connector. Its size is between the full-sized DVI and the tiny Micro-DVI...
Found on some Apple laptops - Enhanced Graphics AdapterEnhanced Graphics AdapterThe Enhanced Graphics Adapter is the IBM PC computer display standard specification which is between CGA and VGA in terms of color and space resolution. Introduced in October 1984 by IBM shortly after its new PC/AT, EGA produces a display of 16 simultaneous colors from a palette of 64 at a...
(EGA) - RGBI interface
- RGB interface
Color codes
yellow RCA/BNC | composite video |
red RCA/BNC | red or Pr/Cr chrominance |
green RCA/BNC | green or luminance |
blue RCA/BNC | blue or Pb/Cb chrominance |
white BNC | horizontal sync |
black BNC | vertical sync |
Newer connectors are identified by their shape and not their colour.
Multiple signals
Some connectors can carry both audio and video signals simultaneously:- HDMIHDMIHDMI is a compact audio/video interface for transmitting uncompressed digital data. It is a digital alternative to consumer analog standards, such as radio frequency coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, or VGA...
is a new digital standard - FireWire is used on Camcorders, commonly ones using MiniDV tapes, and high-end audio equipment.
- Digital Media PortDigital Media PortThe Digital Media Port is an interface for analog audio and video signal and digital control that Sony has started to propose on its A/V products in 2007. As of January 2009, Sony seems to be the only manufacturer proposing this interface...
a connector proposed by SonySony, commonly referred to as Sony, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan and the world's fifth largest media conglomerate measured by revenues....
on its audio/video products - DisplayPortDisplayPortDisplayPort is a digital display interface standard produced by the Video Electronics Standards Association . The specification defines a royalty-free digital interconnect for audio and video. The interface is primarily used to connect a video source to a display device such as a computer monitor...
carries digital audio and video, as well as auxiliary information - Unified Display Interface (UDI)
- F connectorF connectorThe F connector is a type of coaxial RF connector commonly used for "over the air" terrestrial television, cable television and universally for satellite television and cable modems, usually with RG-6/U cable or, in older installations, with RG-59/U cable. It was invented by Eric E...
s are used with RFRadio frequencyRadio frequency is a rate of oscillation in the range of about 3 kHz to 300 GHz, which corresponds to the frequency of radio waves, and the alternating currents which carry radio signals...
modulators for televisionTelevisionTelevision is a telecommunication medium for transmitting and receiving moving images that can be monochrome or colored, with accompanying sound...
s without direct inputs - SCARTSCARTSCART is a French-originated standard and associated 21-pin connector for connecting audio-visual equipment together...
, now the most common in EuropeEuropeEurope is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting... - TRS connectors with more than one ring, or SonySony, commonly referred to as Sony, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan and the world's fifth largest media conglomerate measured by revenues....
's hybrid RCA with a TRS pin - Coaxial cableCoaxial cableCoaxial cable, or coax, has an inner conductor surrounded by a flexible, tubular insulating layer, surrounded by a tubular conducting shield. The term coaxial comes from the inner conductor and the outer shield sharing the same geometric axis...
/RG-6RG-6RG-6/U is a common type of coaxial cable used in a wide variety of residential and commercial applications. The term "RG-6" itself is quite generic and refers to a wide variety of cable designs, which differ from one another in shielding characteristics, center conductor composition, and...
/RG-59RG-59RG-59/U is a specific type of coaxial cable, often used for low-power video and RF signal connections. The cable has a characteristic impedance of 75 ohms. The 75 ohm impedance matches a dipole antenna in free space. "RG" was originally a unit indicator for bulk radio frequency cable in the...
/Cable televisionCable televisionCable television is a system of providing television programs to consumers via radio frequency signals transmitted to televisions through coaxial cables or digital light pulses through fixed optical fibers located on the subscriber's property, much like the over-the-air method used in traditional...
(CATV)
Other composite connectors that carry video, audio, power, and USB
Universal Serial Bus
USB is an industry standard developed in the mid-1990s that defines the cables, connectors and protocols used in a bus for connection, communication and power supply between computers and electronic devices....
:
- ADCApple Display ConnectorThe Apple Display Connector is a proprietary modification of the DVI connector that combines analog and digital video signals, USB, and power all in one cable...
, now-defunct Apple Display Connector - Apple 30-pin dock connector, a docking cradle for Apple iPod, iPhone and iPad
- Portable Digital Media InterfacePDMIPDMI is an interconnection standard for portable media players. It has been developed by CEA as ANSI/CEA-2017-A standard Common Interconnection for Portable Media Players in February 2010...
(PDMI) - includes DisplayPortDisplayPortDisplayPort is a digital display interface standard produced by the Video Electronics Standards Association . The specification defines a royalty-free digital interconnect for audio and video. The interface is primarily used to connect a video source to a display device such as a computer monitor...
for digital video and audio, analog audio, USB 3.0, and power
See also
- High-end audio cables
- Audio and video interfaces and connectorsAudio and video interfaces and connectorsThe existence of many different audio and video standards necessitates the definition of hardware interfaces, which define the physical characteristics of the connections between electrical equipment. This includes the types and numbers of wires required along with the strength and frequency of the...
- List of video connectors
:Category:Digital display connectors
:Category:Telecommunications standards