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The D-Terminal or D-tanshi (Ｄ端子) is a type of analog video connector found on Japanese consumer electronics, typically HDTV, DVD, Blu-ray, D-VHS and HD DVD devices. It was developed by the EIAJ (Electronic Industry Association of Japan) in its standard, RC-5237, for use in digital satellite broadcast tuners. In appearance it is a small flat trapezoidal connector, the same connector as the AAUI connector used by Apple Computer for some time to connect to ethernet.
.jpg) A D-Terminal jack. | |||
| Type | Analogue video connector | ||
|---|---|---|---|
| Production history | |||
| Designer | EIAJ (Electronic Industry Association of Japan) | ||
| Designed | Late 1990s | ||
| Produced | Late 1990s to present | ||
| Superseded | RCA connectors | ||
| General specifications | |||
| Audio signal | device-dependent | ||
| Video signal | Analogue component video, 480i, 480p, 720p, 1080i, 1080p | ||
| Pins | 14 (6 video, 3 reserved, 2 detect, 3 data) | ||
| Data | |||
| Data signal | Resolution and Aspect ratio information | ||
| Pinout | |||
 | |||
| A female connector seen from the front. | |||
| Pin 1 | Y | luminance (0.7 V, 75 Ω) | |
| Pin 2 | Y GND | Y ground | |
| Pin 3 | PB | 0.35 V, 75 Ω | |
| Pin 4 | PB GND | ||
| Pin 5 | PR | 0.35 V, 75 Ω | |
| Pin 6 | PR GND | ||
| Pin 7 | Reserve link 1 | ||
| Pin 8 | Data line 1 |
0 V = 525 lines 2.2 V = 750 lines 5 V = 1125 lines | |
| Pin 9 | Data line 2 |
0 V = 59.94i / 60i 5 V = 59.94p / 60p | |
| Pin 10 | Reserve link 2 | ||
| Pin 11 | Data line 3 |
0 V = 4:3 2.2 V = 4:3 letterbox 5 V = 16:9 | |
| Pin 12 | Plug insert detect ground | ||
| Pin 13 | Reserve link 3 | ||
| Pin 14 | Plug insert detect | output 10 kΩ, input > 100 kΩ | |
| Hooks | GND | Shell ground | |
Some items sold outside Japan use the connector as well. Notable examples are Canon's XH-A1 DVC high-definition camcorder and Panasonic's AG-HVX200 DVCPro HD camcorder.
D1~D5 types
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A D-Terminal connector carries a component video signal (YPBPR). A device with a D5 connector can understand and display the following video signals:
- D1 480i (525i)： 720 × 480 interlaced
- D2 480p (525p)： 720 × 480 progressive
- D3 1080i (1125i)： 1920 × 1080 interlaced
- D4 720p (750p)： 1280 × 720 progressive
- D5 1080p (1125p)： 1920 × 1080 progressive
A device with a D-Terminal connector supports that level and lower D-Terminal signal. For example, a D4 connector can be used with a D4, D3, D2, or D1 signal, but not with a D5 signal.
It is possible to use a simple breakout cable to connect a D-Terminal connector to a standard 3 RCA jack or BNC component connection.[1]
Compatibility Issues
editIt is not always a given that output devices support all lower versions of the standard, so customers must take care to buy compatible products. For example, the PlayStation Portable (PSP-2000) initially supported only the 480p (D2) mode. System Software Ver. 5.00 added 480i (D1) support for the "PS one Classics" games, but not native PSP games. The later PSP-3000 and PSP Go models have 480i support for all games.
See also
editReferences
edit- ^ D-Terminal to Component cable adapter Archived 2009-01-16 at the Wayback Machine