TI DVD播放器解决方案

DVD Player

DVD Player End Equipment from Texas Instruments is a video/audio subsystem that decodes a MPEG-2 encoded movie and converts it into standard video signals.

Design Considerations

The DVD Player is a video/audio subsystem that decodes the MPEG-2 encoded movie and converts it into standard video signals (Composite Video, S-Video, Component Video). The player also decodes the AC-3 audio stream.

Block Diagram

Core Subsystem include:

Analog Front End/DVD Drive - uses the DSP and microcontroller to perform readout and servo processing.

MPEG-2/AC-3 Decoder - uses the DSP to decode MPEG-2 Video and AC-3 Audio.

CPU - controls the DVD player operating system software and the user interface.

Memory - stores executing code and data/parameters.

Video Interface - provides video output with different formats: NTSC/PAL, S video, and YPrPb component video. The output stages require high-performance op-amps to amplify the video signall.

Audio Interface - allows audio to be digitized by the audio converter and processed by the DSP to provide high-quality audio for MPEG/AC3 requirements.

User Interface - allows the user to control the DVD player using the panel keypad or the remote control.

Power Conversion - converts the input power from the AC adaptor to run various functional blocks.

Application Notes

MPEG-2 Video Decoder: TMS320C62x (TM) DSP Implementation (spra649.htm, 9 KB)29 Feb 2000 Abstract