TI Home > Applications > Video Communications System

Video Communications System

Block Diagram (SBD) for a Video Communications System featuring a DaVinciTM Digital Media or OMAP35x Processor, analog and digital video inputs, audio I/Os, video outputs, touch panel, an Ethernet connection as well as Power over Ethernet.

Block Diagram

Click on the colored blocks to view or sample recommended solutions


AC/DC Adaptor

Design Considerations

Video communication endpoints are terminals used to make point-to-point video-enabled calls. Video communications essentially consists of an input video source and base unit interfaced to an output display. Additional features such as human-machine input sources (keyboard, touch panel, etc.) and Ethernet connectivity allow the user to control and transmit data with ease. Data transmission is typically over IP or ISDN networks. The base unit consists of an embedded processor with integrated on-chip peripherals and audio/video acceleration to process audio and video encoding/decoding.

The core system includes:

  • Embedded Processor - Internal host processor moderates input/output data between the microphone, speaker, keyboard, touch panel, and the Digital Signal Processor (DSP). The DSP and associated video accelerators perform real-time image capture processing, compression/decompression, color space conversion, real time display, and data packetization for data communication over the IP/ISDN networks.
  • Video Decoder (ADC) - Digitizes, demodulates, and/or decodes the analog video for the digital video multiplexer to be eventually used by the video processor.
  • Video Encoder / DACs - Converts digital component video signals into the analog domain for display.
  • Audio Interface (Voice Codec) - Interfaces the microphone/speaker and uses a codec to digitize audio signals.
  • Network Interface - Uses an Ethernet PHY transceiver to transmit and receive audio and video data packets through the IP/ISDN networks.
  • Human-machine Interface - Provides the user control of the video communications system by allowing the use of keyboard, mouse, or touch panel to manipulate the data
  • Power Management - There are typically two ways to provide power to these systems; either via an AC wall outlet or via the Ethernet port using Power over Ethernet (PoE). If PoE is used, one can provide as much as 12.95 W to the whole board. More than sufficient for this video endpoint.

Application Notes (6)

Title Abstract Type Size (KB) Date Views
HTM 9 KB 24 Oct 2009 748
HTM 8 KB 02 Mar 2009 756
HTM 8 KB 03 Dec 2008 538
PDF 142 KB 29 Sep 2008 1404
HTM 9 KB 18 Feb 2005 657
HTM 9 KB 03 May 2004 799
    

Selection and Solution Guides

Selection Guides (4)

Title Abstract Type Size (KB) Date Views
PDF 89 KB 22 Feb 2012 6442
PDF 12.79 MB 09 Feb 2012 23535
PDF 328 KB 16 Dec 2010 6442
PDF 1.54 MB 23 Sep 2010 686

Product Bulletin & White Papers

White Papers (2)

Title Abstract Type Size (MB) Date Views
PDF 284 KB 29 Mar 2012 760
PDF 667 KB 05 Mar 2012 2368

News Releases & Authored Articles

Visit the News Center

Similar End-Equipment Solutions

TI End-Equipment

All TI End-Equipment Solutions

Support and Community

Training & Events

Name Type Available During
C66x Multicore SOC Online Training for KeyStone Devices
This self-paced training course provides an introduction to the various components that make up the C66x KeyStone devices
On-Line Training   On Demand  
Multicore Software Development Kit (MCSDK) Online Training
This self-paced training course provides an introduction to the various components that make up the C66x KeyStone devices.
On-Line Training   On Demand  
Texas Instruments' Training Lab - ARM Tech Conference 2010
This self-paced training course provides an introduction to the various components that make up the C66x KeyStone devices.
On-Line Training   On Demand  
The Ins and Outs of the TI’s Video Interfaces
TI has several embedded-processing solutions tailored for digital video applications.
On-Line Training   On Demand  
Technical Introduction to DM36x - TI's low power, low cost video processor
The DM365 processor core is an ARM926EJ-S RISC processor offering speeds up to 300MHz.
On-Line Training   On Demand  

See More Training & Events

Other Support