Calrad Digital Video DVI Cables

DVI stands for Digital Video Interface. DVI is a new format of video interface technology made to maximize the quality of flat panel LCD monitors and high-end video graphics cards. It is a replacement for the P&D Plug & Display standard, and a step up from the digital-only DFP format fro older flat panels. DVI is becoming increasingly popular with consumer electronic manufactures of LCD, Plasma, DLP display devices. PC based Video Card manufactures are now featuring both a VGA and DVI output port.

There are three types of DVI connections: 2. DVI-D (Digital) s. DVI-A (Analog) 3. DVI-I (Integrated Digital / Analog)

DVI-D (True Digital Video), format is used for direct digital connections between source video (namely, video card) and digital LCD, Plasma, DLP monitors. This provides a faster, higher-quality image than with analog, due to the nature of the digital format. All video cards initially produce a digital video signal, which is converted into analog at the VGA output. The analog signal travels to the monitor and is re-converted back into a digital signal. DVI-D eliminates the analog conversion process and improves the connection between source and display.
DVI-A (High-Res Analog), format is used to carry a DVI signal to an analog display, such as a CRT monitor or an HDTV. Although some signal quality is lost from the digital to analog conversion, it still transmits a higher quality picture than standard VGA.
DVI-I (The Best of Both Worlds), format is an integrated cable which is capable of transmitting either a digital-to Digital signal or an analog-to-analog signal, but it will not work transmitting a digital-to-analog signal. LIke any other format, DVI digital and analog formats are non-interchangeable. This means that a DVI-D cable will not work on an analog system, nor a DVI-A on a digital system. Make sure that you know what format each part of your equipment is before you purchase any DVI cables. Only equipment with a DVI port labeled "DVI-I" will accept both a DVI-D and DVI-A source signals.

The Digital formats are available in DVI-D Single-Link and Dual-Link as well as DVI-I Single-Link and Dual-Link format connectors. These cables send information using a digital information called TMDS (transition minimized differential signaling). Single link cables use one TMDS 165Mhz transmitter, while dual links use two. The dual link effectively doubles the power of transmission and provides an increase of speed and signal quality; i.e. a signal link 60-Hz LCD can display a resolution of 1920 x 1080, while a dual link can display a resolution of 2048 x 1536.
- Dual Link DVI Supports 2x165 MHz (2048x1536 at 60 Hz, 1920x1080 at 85 Hz ). A dual link implementation utilizes all 24 of the pins. Calrad only carry's Dual Link.
- Single Link DVI supports a maximum bandwidth of 165 MHz (1920x1080 at 60 Hz, 1280x1024 at 85 Hz). A single link implementation utilizes 12 of the 24 available pins.

DVI-I - -Digital and Analog - Lengths Available 55-625-3 - 3 feet 55-625-6 - 6 feet 55-625-10 - 10 feet 55-625-12 - 12 feet 55-625-15 - 15 feet 55-625-25 - 25 feet 55-625-35 - 35 feet 55-625-50 - 50 feet	HDTV Version DVI-I Digital and Analog - Lengths Available 55-625-HDTV-3 - 3 feet 55-625-HDTV-6 - 6 feet 55-625-HDTV-10 - 10 feet 55-625-HDTV-12 - 12 feet 55-625-HDTV-15 - 15 feet 55-625-HDTV-25 - 25 feet 55-625-HDTV-35 - 35 feet 55-625-HDTV-50 - 50 feet
DVI-D - Digital Only - Lengths Available 55-625D-3 - 3 feet 55-625D-6 - 6 feet 55-625D-10 - 10 feet 55-625D-12 - 12 feet 55-625D-15 - 15 feet 55-625D-25 - 25 feet 55-625D-35 - 35 feet 55-625D-50 - 50 feet	HDTV Version DVI-D Digital Only - Lengths Available 55-625D-HDTV-3 - 3 feet 55-625D-HDTV-6 - 6 feet 55-625D-HDTV-10 - 10 feet 55-625D-HDTV-12 - 12 feet 55-625D-HDTV-15 - 15 feet 55-625D-HDTV-25 - 25 feet 55-625D-HDTV-35 - 35 feet 55-625D-HDTV-50 - 50 feet

Number 35-601
DVI-I Male to DVI-D Female and VGA Female Adapter 12" Long

Number 35-710
DVI-I Female to DVI-I Female Coupler

Please contact Cal-Centron for additional information.