9. Technologies DA2DVI-DL – User's Manual 28
Dual-Link DVI signal
The Dual-Link DVI interface can operate in either Single-Link or Dual-
Link mode. The chosen mode depends on the pixel clock frequency of
the signal and it is selected by the hardware automatically. For pixel
selected. It is important to know that pixel clock frequency is not the
same as TMDS clock frequency when it comes to Dual-Link DVI.
The pixel clock frequency in Single-Link transmission is a 10th part of
the data rate. The maximum data rate of the Single-Link transmission is
clock frequency. The pixel clock frequency in Dual-Link transmission
pixel clock frequency is two times the TMDS clock frequency.
compared to the Single-Link transmission by doubling the number of
wire pairs to transmit the video signal. In Single-Link cables 3 wire
pairs carry the color information (red, green and blue) and one wire
pair carries the clock signal (TMDS clock).
Video lines of the Single-Link interface
Red
Green
PC or Mac Display
Blue
In Dual-Link cables, 6 wire pairs carry the color information next to the
TMDS clock signal. One color component is carried by two wire pairs,
where one wire pair carries the odd pixels and the other wire pair
carries the even pixels.
Video lines of the Dual-Link interface
INFO: The colors of the wire pairs in the picture represent the color
information they carry and not the color of the actual wires inside
the cable.
Red even
Green even
Blue even
Red odd
Green odd
PC or Mac Display
Blue odd
To Next Page
Loading...
Need help?
General
