FAQ about DisplayPort
Answer on questions and small facts about DisplayPort
Q: Who is the designer of the DisplayPort standard?
The interface is designed by VESA – Video Electronics Standards Association. This is a association that contains of NEC Home Electronics, Westeren Digital/Paradise Systems, Video 7, Tecmar, STB Systems, Renaissance GRX, Orchid Technology, Genoa Systems and ATI Technologies.Q: When where DisplayPort invented/produced?
Q: What is the advantages over DVI, VGA and LVDS
- Open standard for all VESA members – for free!
- Reduced EMI (Electromagnetic interference)
- up to 4 simultaneous High Resolution (1080P/60) monitors over one cable.
- Can drive displays panels directly, eliminating scaling and circuits for control. This allow thinner displays.
- Longer cables with full bandwidth (up to 33 meters)
- Transfer other type of data between monitor and computer. For example webcam/microphone.
Q: When was Displayport invented?
Designed in 2006 and produced in 2008.
Q: What is maximum data bitrate / bandwidth ?
Up to totally 17,28 Gbit per second (up to 4 lanes with 5,4Gbit per second, per lane)
Q: How many audio channels?
From 1 to 8 Channels - 16 or 24 bit PCM.
Q: What is maximum cable length?
3meters with a passive cable, and 33 meters with active cable.
Q: Is DisplayPort compatible with VGA, HDMI or DVI?
Short answer YES.
You only need to use a small passive adapter.
PS: You can only use “single-link” HDMI/DVI when using an adapter, because of pin-limitation.
If you want to use Dual-link HDMI/DVI or the analog VGA, you need a active converter with external power.
Q: How do the connector looks like, and what are the pin-setup?
This is a image of the External connector for the source. PCB
|Pin 1||ML_Lane 0 (p)||Lane 0 (positive)|
|Pin 3||ML_Lane 0 (n)||Lane 0 (negative)|
|Pin 4||ML_Lane 1 (p)||Lane 1 (positive)|
|Pin 6||ML_Lane 1 (n)||Lane 1 (negative)|
|Pin 7||ML_Lane 2 (p)||Lane 2 (positive)|
|Pin 9||ML_Lane 2 (n)||Lane 2 (negative)|
|Pin 10||ML_Lane 3 (p)||Lane 3 (positive)|
|Pin 12||ML_Lane 3 (n)||Lane 3 (negative)|
|Pin 13||CONFIG1||connected to Ground1)|
|Pin 14||CONFIG2||connected to Ground1)|
|Pin 15||AUX CH (p)||Auxiliary Channel (positive)|
|Pin 17||AUX CH (n)||Auxiliary Channel (negative)|
|Pin 18||Hot Plug||Hot Plug Detect|
|Pin 19||Return||Return for Power|
|Pin 20||DP_PWR||Power for connector (3.3 V 500 mA)|