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參數(shù)資料
| 型號： | SDA9589X |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | PIP IV Advanced SOPHISTICUS High-End Picture-In-Picture ICs |
| 中文描述： | 畫中畫四先進(jìn)SOPHISTICUS高端畫中畫，圖像芯片 |
| 文件頁數(shù)： | 17/102頁 |
| 文件大?。?/td> | 2306K |
| 代理商： | SDA9589X |
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Micronas
4-17
SDA 9489X
SDA 9589X
System Description
Preliminary Data Sheet
Table 4-5
Number of stored pixel per line dependent on SIZEHOR
Table 4-6
Number of stored lines per field
4.6.2
The continuos zoom feature changes the picture size rapidly in an animated manner. It
is available in single-PIP mode for picture sizes smaller or equal 1/4 of the undecimated
picture.
There are three possibilities of using the zoom feature:
The PIP is zoomed via
HSHRINK
and
VSHRINK
manually. This requires an I
2
C
protocol each time the picture size should change.
CZMEN
should
be used to
synchronize the update of
HSHRNK/VSHRNK
with
SIZEHOR/SIZEVER
.
A different way is to make usage of the
automatic
zooming. The zoom speed can be
controlled by
CZMSPD.
When switching PIP on or off by using
PIPON
, the PIP zooms
automatically to the selected picture size or disappears at size of 1/81.
A zooming between two picture sizes can be performed by changing the
HSHRINK
,
VSHRINK, SIZEHOR, SIZEVER
values when
CZMEN
is enabled. Then the new
picture size is obtained by zooming and not taken immediately.
Automatic zooming is only possible in
frame
mode
. Being in
field mode
, the picture size
remains stable until frame mode occurs or until the internal counter reaches the desired
Continuos Zoom
SIZEHOR
horizontal
scaling
PIP Pixel per line
D1
D0
Y
(B-Y)
(R-Y)
0
0
2:1
324
81
81
0
1
3:1
216
54
54
1
0
4:1
160
40
40
1
1
6:1
108
27
27
SIZEVER
vertical scaling
PIP lines
D1
D0
625 lines source
525 lines source
0
0
2:1
132
108
0
1
3:1
88
72
1
0
4:1
66
54
1
1
6:1
44
36
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