Mini-DVI explained

Mini-DVI
Type:Digital and analog computer video connector
Designer:Apple Inc.
Manufacturer:Apple Inc.
Superseded:Mini-VGA
Superseded By:Mini DisplayPort
Superseded By Date:October 2008
External:yes
Video Signal:As DVI
Num Pins:32
Pinout Caption:A female mini-DVI socket
Pin1:Data 2 +
Pin1 Name:Dat2_P
Pin2:Data 2 -
Pin2 Name:Dat2_N
Pin3:Data 1 +
Pin3 Name:Dat1_P
Pin4:Data 1 -
Pin4 Name:Dat1_N
Pin5:Data 0 +
Pin5 Name:Dat0_P
Pin6:Data 0 -
Pin6 Name:Dat0_N
Pin7:Clock +
Pin7 Name:CLK_P
Pin8:Clock -
Pin8 Name:CLK_N
Pin9 Name:DGND
Pin10 Name:DGND
Pin11 Name:DGND
Pin12 Name:DGND
Pin13 Name:DGND
Pin14 Name:DGND
Pin15 Name:DGND
Pin16 Name:DGND
Pin17 Name:+5 V
Pin18 Name:DCC_DAT
Pin19 Name:spare
Pin20:Analogue blue
Pin20 Name:BLUE
Pin21 Name:not installed
Pin22:Analogue green
Pin22 Name:GREEN
Pin23 Name:not installed
Pin24:Analogue red
Pin24 Name:RED
Pin25 Name:Detect
Pin26 Name:DCC_CLK
Pin27 Name:spare
Pin28 Name:DGND
Pin29:Horizontal sync
Pin29 Name:HSYNC
Pin30 Name:DGND
Pin31:Vertical sync
Pin31 Name:VSYNC
Pin32 Name:DGND

The 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. It is found on the 12-inch PowerBook G4 (except the original 12-inch 867 MHz PowerBook G4, which used Mini-VGA), the Intel-based iMac, the MacBook Intel-based laptop, the Intel-based Xserve, the 2009 Mac mini, and some late model eMacs.

In October 2008, Apple announced the company was phasing Mini-DVI out in favor of Mini DisplayPort.

Mini-DVI connectors on Apple hardware are capable of carrying DVI, VGA, or TV signals through the use of adapters, detected with EDID (Extended display identification data) via DDC. This connector is often used in place of a DVI connector in order to save physical space on devices. Mini-DVI does not support dual-link connections and hence cannot support resolutions higher than 1920×1200 @60 Hz.

There are various types of Mini-DVI adapter:

Non-OEM Mini-DVI to HDMI adapters are also available at online stores such as eBay and Amazon, and from some retail stores, but were not sold by Apple.

The physical connector is similar to Mini-VGA, but is differentiated by having four rows of pins arranged in two vertically stacked slots rather than the two rows of pins in the Mini-VGA.

Connecting to a DVI-I connector requires a Mini-DVI to DVI-D cable plus a DVI-D to DVI-I adapter.

Criticisms

Compatibility

As Mini-DVI is pin-compatible with DVI, it supports both DVI and VGA through adapters.

See also

External links

Notes and References

  1. Web site: Blog explaining the difference. 15 January 2008 . 2009-10-11.
  2. Web site: Image showing the difference. 2009-10-11.