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參數(shù)資料
| 型號： | L64020XDC |
| 廠商： | LSI CORP |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, CBGA208 |
| 封裝： | 17 X 17 MM, 1 MM PITCH, MINI, BGA-208 |
| 文件頁數(shù)： | 29/32頁 |
| 文件大小： | 370K |
| 代理商： | L64020XDC |
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6
L64020 Single Chip DVD Decoder
Video Decoder
The L64020 operates optimally at image sizes up to 720 x 480 pixels,
with a frame rate of 30 fps for NTSC (or 720 x 576 @ 25 fps for PAL).
These resolutions are sometimes referred to as Main Prole at Main
Level of MPEG-2. As such, the L64020 can also decode MPEG-1
sequences. The coded data channel may have a sustained bit rate of up
to 20 Mbits/s. The L64020 also supports images with resolution lower
than 720 x 480 pixels (see Video Postprocessing Filters).
Video Postprocessing Filters and Letterbox Display
Images with resolutions below 720 x 480 pixels are interpolated to full
size using on-chip lters. This allows programming produced at different
resolutions to be decoded and displayed on televisions with standard
NTSC or PAL timing, and it allows the use of digital or analog NTSC or
PAL encoders operating at standard television frequencies (typically
27 MHz). In addition, the lters provide the capability to pan and scan
the MPEG image to 1/8-pixel accuracy. The L64020 also supports
letterbox display format with an integrated vertical lter for 3/4 decimation
(720 x 480 images are decimated to 720 x 360 pixels).
On-Screen Display Controller with Graphics Support and SPU Decoder
The L64020 integrates an On-screen Display (OSD) controller capable of
overlaying an image up to 720 x 480 pixels (720 x 576 for PAL) at up to
8 bits/pixel on top of an MPEG video sequence while it is being decoded.
In addition, the L64020 contains an on-chip Subpicture Unit (SPU)
decoder for cost-effective integration of the graphics function. The SPU
decodes the bit map for graphic overlay and executes SPU instructions
so the graphic display can be changed on the y without CPU
intervention.
Trick Mode Support
The L64020 supports skipping frames, repeating frames, Rip Forward
Mode, Broken Link/Open GOP response, search for next GOP, Display
Override Mode, reconstruction force rate control, and still picture display.
Skip frame allows the decoder to skip the next I, P, or B frame once or
continuously. Repeat frame commands the decoder to repeat the
currently displayed frame once or continuously. Rip Forward Mode
commands the decoder to process pictures as fast as it can. This may
be used when not every decoded picture needs to be displayed.
相關(guān)PDF資料 |
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| L64020XQC | SPECIALTY CONSUMER CIRCUIT, PQFP160 |
| L64020XBC | SPECIALTY CONSUMER CIRCUIT, PQFP176 |
| L64021HG | SPECIALTY CONSUMER CIRCUIT, PBGA208 |
| L64021MS | SPECIALTY CONSUMER CIRCUIT, PQFP176 |
| L64021PZ | SPECIALTY CONSUMER CIRCUIT, PQFP160 |
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