參數(shù)資料
型號: SAA2510
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: Video CD VCD decoder
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝: 14 X 20 X 2.70 MM, PLASTIC, QFP-100
文件頁數(shù): 10/28頁
文件大?。?/td> 126K
代理商: SAA2510
1996 May 21
10
Philips Semiconductors
Preliminary specification
Video CD (VCD) decoder
SAA2510
The second example, illustrated in Fig.4, is where a
240 active lines per field NTSC picture needs to be
displayed on a 288 line PAL format display. The ‘missing’
lines can be filled with a programmable border colour.
High-resolution still pictures can be present on a Video CD
disc.
In this event, the horizontal and vertical resolution of the
reconstructed picture is double that of normal resolution
(moving) pictures. In order to fit the picture in the available
frame buffer DRAM, a data compression scheme is
applied to the stored picture.
Fig.3
One field of a 625-line picture on a 525-line
display.
handbook, halfpage
MGE332
reconstructed picture
window
reconstructed picture
352
not displayed
not displayed
24
24
240 288
Fig.4 525-line picture on a 625-line display.
handbook, halfpage
MGE333
viewport
display window
352
border = blank
border = blank
240 288
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