| Portable Digital Media Interface (PDMI) | |
| Designer: | CEA |
| Design Date: | February 2010 |
| External: | Yes |
| Hotplug: | Yes |
| Length: | 22 mm |
| Width: | 2.5 mm |
| Audio Signal: | Analog stereo, digital DisplayPort (1–8 channels, 16- or 24-bit linear PCM; 32 to 192 kHz sampling rate) |
| Video Signal: | Digital 2-lane DisplayPort 1.1, 4.32 Gbit/s data rate |
| Data Signal: | USB 3.0 SuperSpeed + 1Mbit/s for the DisplayPort auxiliary channel |
| Num Pins: | 30 pins |
| Pin1: | USB Power (VBUS) |
| Pin1 Name: | USB 5V |
| Pin2: | USB Ground |
| Pin2 Name: | USB DGND |
| Pin3: | Data + |
| Pin3 Name: | USB D+ |
| Pin4: | On‐The‐Go (allows device‐to‐device data transfer) |
| Pin4 Name: | USB OTG |
| Pin5: | Data - |
| Pin5 Name: | USB D- |
| Pin6: | High current 5V supply (1.8A, or 3.6A if combined with pin 15) |
| Pin6 Name: | HC 5V- |
| Pin7: | High current Ground |
| Pin7 Name: | DGND / HC GND |
| Pin8: | Right analog audio output (line level) |
| Pin8 Name: | AUDIO RIGHT OUT |
| Pin9: | Left analog audio output (line level) |
| Pin9 Name: | AUDIO LEFT OUT |
| Pin10: | Audio output ground |
| Pin10 Name: | AUDIO OUT GND |
| Pin11: | Consumer Electronic Control, for HDMI interface applications |
| Pin11 Name: | CEC |
| Pin12: | USB 3.0 SSRX‐ signal |
| Pin12 Name: | SSR‐ |
| Pin13: | Signal Ground |
| Pin13 Name: | GND |
| Pin14: | USB 3.0 SSRX+ signal |
| Pin14 Name: | SSR+ |
| Pin15: | High current 5V supply (1.8A, or 3.6A if combined with pin 6) |
| Pin15 Name: | HC 5V |
| Pin16: | High current Ground |
| Pin16 Name: | HC GND |
| Pin17: | USB 3.0 SSTX‐ signal |
| Pin17 Name: | SST‐ |
| Pin18: | Signal Ground |
| Pin18 Name: | GND |
| Pin19: | USB 3.0 SSTX+ signal |
| Pin19 Name: | SST+ |
| Pin20: | Hot Plug Detect (includes interrupt function from host) |
| Pin20 Name: | HPD |
| Pin21: | AUX Channel + |
| Pin21 Name: | DAUX+ |
| Pin22: | AUX Channel - |
| Pin22 Name: | DAUX‐ |
| Pin23: | 3.3V DisplayPort Power (Power from portable device) |
| Pin23 Name: | AP |
| Pin24: | Main Link Lane 1 (‐) |
| Pin24 Name: | D1‐ |
| Pin25: | Signal Ground |
| Pin25 Name: | GND |
| Pin26: | Main Link Lane 1 (+) |
| Pin26 Name: | D1+ |
| Pin27: | Signal Ground |
| Pin27 Name: | GND |
| Pin28: | Main Link Lane 0 (‐) |
| Pin28 Name: | D0‐ |
| Pin29: | Signal Ground |
| Pin29 Name: | GND |
| Pin30: | Main Link Lane 0 (+) |
| Pin30 Name: | D0+--> |
PDMI (Portable Digital Media Interface) is an interconnection standard for portable media players. It has been developed by CEA (Consumer Electronics Association) as ANSI/CEA-2017-A standard Common Interconnection for Portable Media Players in February 2010. Chaired by David McLauchlan from Microsoft, the standard was developed with the input or support of over fifty consumer electronics companies worldwide.[1]
CEA-2017-A is the new revision of the earlier ANSI/CEA-2017 standard adopted in July 2007, which used a proprietary serial protocol based on Media Oriented Systems Transport (MOST) in-vehicle network;[2] [3] [4] the 2007 revision has seen only marginal use in actual devices.[5] New CEA-2017-A devices are not compatible with devices manufactured under the 2007 revision.[6]
PDMI connector is intended to serve as a common interconnection between docking devices and displays and portable/nomadic devices with media playback capability. Intended host devices include docking stations for home A/V equipment, in-car entertainment systems, digital media kiosks, and hotel/in-flight entertainment systems, where PDMI aims to replace the ubiquitous iPod cradle connector.[7]
PDMI uses a 30 pin receptacle with approximate size of 2.5 mm by 22 mm; a cradle-style connector is also defined. The PDMI connector includes the following electrical interfaces:
DisplayPort component provides data rate of 4.32 Gbit/s and supports up to 1080p60 video and 8-channel audio playback on an attached display device, as well as EDID and display control commands. DisplayPort signal can be converted to HDMI format using active converter circuitry in the dock or external signal conversion adapter powered by 3.3 V DisplayPort power.
Power supply from both the host (docking station) and portable device allows for supporting the portable device with power and battery charging, as well as supporting accessories from the portable device.
USB 3.0 "SuperSpeed", USB 2.0, and USB On-The-Go support file transfer and device control, as well as device-to-device intercommunication.
The first mass-production device from a major manufacturer to incorporate PDMI is the Dell Streak, a 5abbr=onNaNabbr=on tablet device running the Android operating system version 1.6 through 2.2.
| +Devices that use PDMI | Device Name | Release Date | Notes |
|---|---|---|---|
| Advent Vega[8] | 19 November 2010[9] | ||
| Dell Streak[10] | 4 June 2010 | ||
| Boeing Black[11] | 2014.2Q |
| + PDMI pinout | Pin no. | Pin name | Interface grouping | Pin description |
|---|---|---|---|---|
| 1 | USB 5V | USB 2.0 Interface | USB Power (VBUS) | |
| 2 | USB DGND | USB Ground | ||
| 3 | USB D+ | Data + | ||
| 4 | USB OTG | On‐The‐Go (allows device‐to‐device data transfer) | ||
| 5 | USB D− | Data − | ||
| 6 | HC 5V | High-current Power (output on host) | High-current 5V supply (1.8A, or 3.6A if combined with pin 15) | |
| 7 | DGND / HC GND | High-current Ground | ||
| 8 | AUDIO RIGHT OUT | Analog Audio (input on host) | Right analog audio output (line level) | |
| 9 | AUDIO LEFT OUT | Left analog audio output (line level) | ||
| 10 | AUDIO OUT GND | Audio output ground | ||
| 11 | CEC | CEC | Consumer Electronic Control, for HDMI remote control | |
| 12 | SSR− | USB 3.0 Data Device Receive | USB 3.0 SSRX− signal | |
| 13 | GND | Signal Ground | ||
| 14 | SSR+ | USB 3.0 SSRX+ signal | ||
| 15 | HC 5V | High-current Power (output from host) | High-current 5V supply (1.8A, or 3.6A if combined with pin 6) | |
| 16 | HC GND | High-current Ground | ||
| 17 | SST− | USB 3.0 Data Device Transmit | USB 3.0 SSTX− signal | |
| 18 | GND | Signal Ground | ||
| 19 | SST+ | USB 3.0 SSTX+ signal | ||
| 20 | HPD | DisplayPort v1.1a Interface, 2 Lane (host is sink; device is source) | Hot Plug Detect (includes interrupt function from host) | |
| 21 | DAUX+ | AUX Channel + | ||
| 22 | DAUX− | AUX Channel − | ||
| 23 | AP | 3.3V DisplayPort Power (power from portable device) | ||
| 24 | D1− | Main Link Lane 1 (−) | ||
| 25 | GND | Signal Ground | ||
| 26 | D1+ | Main Link Lane 1 (+) | ||
| 27 | GND | Signal Ground | ||
| 28 | D0− | Main Link Lane 0 (−) | ||
| 29 | GND | Signal Ground | ||
| 30 | D0+ | Main Link Lane 0 (+) |
Purchase Standards
Slides
Announcements