Video Interfaces

7/28/2019 Video Interfaces

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Video Interfaces

S-Video

DV

SDI

HDMI

DVI


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S-Video


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S-Video

Separate Video (2 channel), more commonly

known as S-Video and Y/C, is an analog

video transmission (no audio) that

carries standard definitionvideo typically

at 480i or 576i resolution.

Video information is encoded on two

channels: luma (luminance, intensity, "Y")and chroma (colour, "C").
http://en.wikipedia.org/wiki/Analog_videohttp://en.wikipedia.org/wiki/Analog_videohttp://en.wikipedia.org/wiki/Standard_definitionhttp://en.wikipedia.org/wiki/480ihttp://en.wikipedia.org/wiki/576ihttp://en.wikipedia.org/wiki/576ihttp://en.wikipedia.org/wiki/480ihttp://en.wikipedia.org/wiki/Standard_definitionhttp://en.wikipedia.org/wiki/Standard_definitionhttp://en.wikipedia.org/wiki/Analog_videohttp://en.wikipedia.org/wiki/Analog_video


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DV

DV is a format for storing digital video.

DV video employs interlaced scanning withthe luminance sampling frequency of

13.5 MHz. This results in 480 scanlines per

complete frame for the 60 Hz system, and 576

scanlines per complete frame for the 50 Hz

system.
http://en.wikipedia.org/wiki/Digital_videohttp://en.wikipedia.org/wiki/Interlaced_videohttp://en.wikipedia.org/wiki/Interlaced_videohttp://en.wikipedia.org/wiki/Digital_video


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Serial Digital Interface


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Serial Digital Interface

Serial digital interface (SDI) is a family

ofvideo interfaces standardized

by SMPTE (The Society of Motion Picture and

Television Engineers).

The various serial digital interface standards

all use (one or more) coaxial cables with BNC

connectors, with a nominal impedance of75 ohms.
http://en.wikipedia.org/wiki/Videohttp://en.wikipedia.org/wiki/SMPTEhttp://en.wikipedia.org/wiki/BNC_connectorhttp://en.wikipedia.org/wiki/BNC_connectorhttp://en.wikipedia.org/wiki/BNC_connectorhttp://en.wikipedia.org/wiki/BNC_connectorhttp://en.wikipedia.org/wiki/SMPTEhttp://en.wikipedia.org/wiki/Video


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Serial Digital Interface Standards

Standard Name BitratesExample Video

Formats

SMPTE 259M SD-SDI

270 Mbit/s,

360 Mbit/s,

143 Mbit/s, and

177 Mbit/s

480i, 576i

SMPTE 344M ED-SDI 540 Mbit/s 480p, 576p

SMPTE 292M HD-SDI1.485 Gbit/s, and

1.485/1.001 Gbit/s720p, 1080i

SMPTE 372M Dual Link HD-SDI2.970 Gbit/s, and

2.970/1.001 Gbit/s1080p

SMPTE 424M 3G-SDI2.970 Gbit/s, and

2.970/1.001 Gbit/s1080p
http://en.wikipedia.org/wiki/SMPTE_259Mhttp://en.wikipedia.org/wiki/SMPTE_344Mhttp://en.wikipedia.org/wiki/SMPTE_292Mhttp://en.wikipedia.org/wiki/SMPTE_372Mhttp://en.wikipedia.org/wiki/SMPTE_424Mhttp://en.wikipedia.org/wiki/SMPTE_424Mhttp://en.wikipedia.org/wiki/SMPTE_372Mhttp://en.wikipedia.org/wiki/SMPTE_292Mhttp://en.wikipedia.org/wiki/SMPTE_344Mhttp://en.wikipedia.org/wiki/SMPTE_259M


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HDMI


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HDMI

HDMI (High-Definition Multimedia Interface)is a compact audio/video interface fortransferring uncompressed video data and

compressed/uncompressed digital audio datafrom an HDMI-compliant device ("the sourcedevice") to a compatible digitalaudio device, computer monitor, video

projector, or digital television. HDMI is adigital replacement for existing analogvideo standards.
http://en.wikipedia.org/wiki/Uncompressed_videohttp://en.wikipedia.org/wiki/Uncompressed_audiohttp://en.wikipedia.org/wiki/Digital_audiohttp://en.wikipedia.org/wiki/Digital_audiohttp://en.wikipedia.org/wiki/Visual_display_unithttp://en.wikipedia.org/wiki/Video_projectorhttp://en.wikipedia.org/wiki/Video_projectorhttp://en.wikipedia.org/wiki/Digital_televisionhttp://en.wikipedia.org/wiki/Analog_videohttp://en.wikipedia.org/wiki/Analog_videohttp://en.wikipedia.org/wiki/Analog_videohttp://en.wikipedia.org/wiki/Analog_videohttp://en.wikipedia.org/wiki/Digital_televisionhttp://en.wikipedia.org/wiki/Video_projectorhttp://en.wikipedia.org/wiki/Video_projectorhttp://en.wikipedia.org/wiki/Visual_display_unithttp://en.wikipedia.org/wiki/Digital_audiohttp://en.wikipedia.org/wiki/Digital_audiohttp://en.wikipedia.org/wiki/Uncompressed_audiohttp://en.wikipedia.org/wiki/Uncompressed_video


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DVI


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DVI

Digital Visual Interface (DVI) is a video displayinterface and used to connect a video sourceto a display device, such as a computer

monitors and digital projectors. DVI's digital video transmission format is

based on PanelLink

PanelLink uses transition minimizeddifferential signaling (TMDS), a high-speedserial link developed by Silicon Image..
http://en.wikipedia.org/wiki/Display_devicehttp://en.wikipedia.org/wiki/Computer_monitorhttp://en.wikipedia.org/wiki/Computer_monitorhttp://en.wikipedia.org/w/index.php?title=PanelLink&action=edit&redlink=1http://en.wikipedia.org/wiki/Transition_Minimized_Differential_Signalinghttp://en.wikipedia.org/wiki/Transition_Minimized_Differential_Signalinghttp://en.wikipedia.org/wiki/Transition_Minimized_Differential_Signalinghttp://en.wikipedia.org/wiki/Transition_Minimized_Differential_Signalinghttp://en.wikipedia.org/w/index.php?title=PanelLink&action=edit&redlink=1http://en.wikipedia.org/wiki/Computer_monitorhttp://en.wikipedia.org/wiki/Computer_monitorhttp://en.wikipedia.org/wiki/Display_device


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DVI and HDMI Comparision

HDMI is a newer digital audio/video interface developed and

promoted by the consumer electronics industry. DVI and HDMI have

the same electrical specifications for their TMDS and VESA/DDC links.

However, HDMI and DVI differ in several key ways.

HDMI lacks VGA compatibility. The necessary analog signals areabsent from the HDMI connector.

DVI is limited to the RGB color space. HDMI supports RGB, but also

supports YCbCr 4:4:4 and YCbCr 4:2:2. These spaces are widely used

outside of computer graphics.

HDMI supports the transport of packets, needed for digital audio, in

addition to digital video. An HDMI source differentiates between a

legacy DVI display and an HDMI-capable display by reading the

display's EDID block.
http://en.wikipedia.org/wiki/HDMIhttp://en.wikipedia.org/wiki/YCbCrhttp://en.wikipedia.org/wiki/YCbCrhttp://en.wikipedia.org/wiki/EDIDhttp://en.wikipedia.org/wiki/EDIDhttp://en.wikipedia.org/wiki/YCbCrhttp://en.wikipedia.org/wiki/YCbCrhttp://en.wikipedia.org/wiki/HDMI

Video Interfaces

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