DVI en EVC videoconnectoren

Digital Visual Interface (DVI) Pinouts

DVI has been developed by 'the Digital Display Working Group' (DDWG). It carries the same type of signal as the DFP connector; however, the connector is not the same physically or in terms of pin out. The DVI connector comes in two forms, a 24-pin version and a 29-pin version. The 29-pin version allows an analog signal to also be carried. Signal type: analog and digital

pin 1 - TMDS Data 2-
pin 2 - TMDS Data 2+
pin 3 - TMDS Data 2/4 Shield
pin 4 - TMDS Data 4-
pin 5 - TMDS Data 4+
pin 6 - DDC Clock
pin 7 - DDC Data
pin 8 - Analog Vertical Sync
pin 9 - TMDS Data 1-
pin 10 - TMDS Data 1+
pin 11 - TMDS Data 1/3 Shield
pin 12 - TMDS Data 3-
pin 13 - TMDS Data 3+
pin 14 - +5 V Power
pin 15 - Ground
(+5 V, Analog H/V Sync)
pin 16 - Hot Plug Detect
pin 17 - TMDS Data 0-
pin 18 - TMDS Data 0+
pin 19 - TMDS Data 0+
pin 20 - TMDS Data 0/5
Shield
pin 21 - TMDS Data 5 -
pin 22 - TMDS Data 5+
pin 23 - TMDS Clock Shield
pin 24 - TMDS Clock+
pin C1 - TMDS Clock-
pin C2 - Analog Red Video Out
pin C3 - Analog Blue Video Out
pin C4 - Analog Horizontal Sync
pin C5 - Analog Common Ground
Return (R, G, B Video Out)

Wat is DVI?
DVI staat voor (D)igital (V)ideo (I)nterface.

DVI is a new form 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 for older flat panels. DVI is becoming increasingly popular with video card manufacturers, and most cards purchased include both a VGA and a DVI output port.

Wat zijn the DVI uitvoeringen?
Er zijn drie verschillende DVI connectoren:

1. DVI-D (Digitaal)
2. DVI-A (Analoog)
3. DVI-I (Integrated Digitaal/Analoog)

DVI-D - True Digital Video

DVI-D format is used for direct digital connections between source video (namely, video cards) and digital LCD (or rare CRT) 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 Analoog

DVI-A 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 nalog conversion, it still transmits a higher quality picture than standard VGA.

DVI-I - The Best of Both Worlds

DVI-I 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 or analog-to-digital 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 signal.

What are single and dual links?
The DVI-D and DVI-I formats are available in either Single or Dual link connectors. These cables send information using a format 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 single link 60-Hz LCD can display a resolution of 1920 x 1080, while a dual link can display a resolution of 2048 x 1536.

EVC (voorloper van DVI):

EVC
EVC connectorMating face of EVC female
PIN# SIGNAL

1 T.M.D.S DATA 2+
2 T.M.D.S DATA 2-
3 T.M.D.S DATA 2 RTN
4 SYNC RTN
5 HORIZ. SYNC TTL
6 VERT. SYNC TTL
7 T.M.D.S CLOCK RTN
8 CHARGING PWR INPUT+
9 1394 PAIR A, DATA
10 1394 PAIR A, DATA+
11 T.M.D.S DATA 1+
12 T.M.D.S DATA 1-
13 T.M.D.S. DATA 1 RTN
14 T.M.D.S CLOCK+
15 T.M.D.S CLOCK-
16 USB DATA+
17 USB DATA-
18 1394 SHIELD/CHARGING POWER INPUT-
19 1394 VG
20 1394 VP
21 T.M.D.S DATA 0-
22 T.M.D.S DATA 0+
23 T.M.D.S DATA 0 RTN
24 STEREO SYNC TTL
25 DDC RTN
26 DDC DATA SDA
27 DDC CLOCK SCL
28 +5 VDC
29 1394 PAIR B, CLOCK+
30 1394 PAIR B, CLOCK-
C1 RED VIDEO OUT
C2 GRN VIDEO OUT
C3 PX CLOCK OUT
C4 BLU VIDEO OUT
C5 COMMON GND RTN