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參數(shù)資料
| 型號(hào)： | MPEGCS22 |
| 廠(chǎng)商： | IBM Microeletronics |
| 英文描述： | MPEG-2 Digital Audio/Video Decoder(MPEG-2系列數(shù)字音頻/視頻譯碼器) |
| 中文描述： | MPEG - 2數(shù)字音頻/視頻解碼器（的MPEG - 2系列數(shù)字音頻/視頻譯碼器） |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大?。?/td> | 80K |
| 代理商： | MPEGCS22 |
IBM Microelectronics
MPEG-2 Digital Audio/Video Decoder
Affordable high-quality playback
Highlights
This digital audio/video
decoder is designed with
enhanced features to
meet rapidly emerging
demand of broadcast,
small office/home office
(SOHO), desktop
publishing, video post-
processing, and profes-
sional editing user
applications.
MPEGCS 22
This audio/video (A/V)
decoder is part of a family
of MPEG-2 products from
IBM Microelectronics. This
(A/V) integrated single
chip decodes MPEG-2
standard MP@ML video
and MPEG-2 stereo Layer
I & II (CD quality) audio.
This decoder can sustain,
at minimum, MPEG-2 (IPB
frames) data rates up to
15Mbp/s (MP@ML).
Designed for Emerging A/V
Applications
The decoder’s extended features provide
access to user data in the video stream.
The design allows for recognition of
sequence error codes embedded in the
video stream. Horizontal and vertical
filters deliver high quality video for data
formats that require picture size expan-
sion. The chip has a built in phase-locked-
loop to keep the audio and video
synchronized. A flexible host interface is
supported with four modes of operation to
provide for high-bandwidth or cost-
sensitive applications. Memory bus
flexibility is provided to support 2 MB or
4 MB applications.
Teletext and Vertical Blanking
Interval Data Output
The MPEGCS22 decoder chip supports
data transmission on the pixel bus and
teletext data output on the TTX Data pin
during the Vertical Blanking Interval (VBI).
The application controls the number of
lines of VBI data to be output. For VBI
data outputs, all the VBI lines can be used
to deliver data. A double buffer is provided
so the host can write VBI or teletext data
to one buffer while the data in the other
buffer is being displayed.
MPEGCS22 Features:
Standard Main Profile at Main Level
(MP@ML) decoder for 4:2:0 chroma
applications, along with MPEG audio
decoding
Video Decoder - MPEG-2, ISO/IEC 13818-
2 MP@ML
Audio Decoder - MPEG-2, ISO/IEC 13818-
3 Layers I & II
Supports European DVB standard
Supports on-chip Packetized Elementary
Stream (PES) layer decoding for both
audio and video to extract the Presenta-
tion Time Stamp (PTS)
User data automatically stored in SDRAM
accessible to host
Letterbox mode supported for 16:9
Aspect Ratio
Horizontal and vertical filters deliver high
quality video. Pan and scan are sup-
ported in 1/16 pel accuracy
Up to 11 bits DC precision for enhanced
picture quality
Sophisticated error concealment on all
video layers
Picture-in-picture support
Supports Teletext or Vertical Blanking
Interval data output
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