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High-Definition Television (HDTV)

TI's expertise in digital video technology allows for best-in-class solutions for the performance and price sensitive HDTV market. A 10 block solution that will allow 720p and 1080i scan rates while leveraging TI's DLP(R) Technology.

Block Diagram


1394 DTCP 1394 Supply AC Adapter Audio Amp Audio Amp (Input) Audio Amp (Line Out) Audio Amp (Speaker) Clock DDR Power DLP DMP Discovery Fan Control Gamma Control Green Mode Power HDMI/DVI Extender - DVI/HDMI Repeaters/Switches HDMI/DVI Receiver IRDA LCD Backlight LVDS Interface Logic Low Power Wireless Proc Core / I/O Power RF Tunner RF Tunner RS-232 Stereo Audio Codec System Power Temp Sense Triple ADC with PLL Tuner Supply USB Cont USB Power Video Amp Video Amps Video DAC Video Decoder Video Switch

Design Considerations

HDTV

In General, a DTV can be broken down into less than 10 major blocks; the display (and driver), core media engine, audio decoding and processing, video decoding and processing, tuner, interface block and power supply. The absolute performance demand on each block is defined by the performance level you experience from the comfort of your favorite chair. Many of the devices needed to develop what happens behind the screen are already in TI's product portfolio. Whether tapping into DLP® technology, DSP based digital media processors, other core processing solutions, or other high performance analog components, a high level of integration, flexibility and ease of use are needed for the rapidly evolving DTV market place. Leveraging high performance audio-video CODECs, graphics acceleration, communications and support is essential for the convergent applications designed into and around the home entertainment experience.

Core Subsystem include :

  • Video Signal Chain
    Consumers probably place the heaviest weight on the video experience they have while watching TV. As such, resolution, brightness, contrast and clarity impact just how real the experience appears. It is critical for TVs to support multiple ATSC DTV formats, NTSC and PAL decoding, composite and S-Video inputs and 2D adaptive filtering. As HDTV rolls forward, supporting full HD at 1080i resolution with 3D adaptive filtering will be the standard.
     
  • Audio Signal Chain
    In the past, consumers may have connected their TV to their home audio system in order to enhance the audio experience, especially when watching movies. Advances in audio solutions combined with the potential to place a TV in another location away from the home stereo, especially with wall mount DTVs, has driven the capability and need to integrate advanced audio solutions directly into the DTV. Also, speaker technologies have come to the point of letting you turn the entire display into a speaker element. But whether driving a surface-based or traditional speaker, the audio signal chain is crucial in maximizing the audio experience. Tradeoffs in an audio solution relate to the audio processing capability, audio output power, thermal dissipation and overall power consumed.
     
  • Power
    Including the AC to DC conversion to create the main power for the DTV itself, most every functional block in the TV requires a particular power solution; DLP lamp, LCD bias, or backlight power for the display; core and I/O power for the main processor, DDR memory, as well as power for the tuner and video/analog signal chains. However, in this age of energy conservation, governments are continually enacting new policies and tightening existing programs covering the standby power consumption and efficiency of consumer products. Nearly all existing programs that govern televisions are voluntary, but the prospects of mandatory requirements loom.
    

Product Bulletin & White Papers

White Papers

  • TVP9900 Brings Cost Savings to DigitalTV Designers White Paper (spry100.pdf, 983 KB)
    11 Apr 2007 Download
  • HD Transcoding Connects Home Video Applications White Paper (spry097.pdf, 470 KB)
    20 Mar 2007 Download
  • Implementing Scalable DSP Systems for Digital Video Infrastructure (spry087.pdf, 3.16 MB)
    29 Aug 2006 Download

News Releases & Authored Articles

News Releases

Date Headline
02 Jun 2008 New TI amplifiers reduce audio solution cost for flat panel TVs
08 Apr 2008 TI introduces industry's first closed-loop PWM-input amplifier power stage
25 Feb 2008 Hear the difference with the industry's first closed-loop, digital-input class-D amplifier from TI
11 Feb 2008 TI introduces DirectPath™ 2VRMS audio line driver
31 Oct 2007 TI Introduces 2-A and 3-A SWIFT™ Converters with Dual Outputs for Digital TVs and Set-Top Boxes
22 Aug 2007 TI Introduces Two High Performance HDMI Switches
10 Jul 2007 TI Introduces Industry's Most Flexible 3.3-V, 2.5-V and 1.8-V Clock Generator Family
13 Jun 2007 TI Simplifies LCD TV Power System Design with TPS40K™ DC/DC Controller

Authored Articles

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