SDA9489X ETC [List of Unclassifed Manufacturers], SDA9489X Datasheet - Page 17

• Manufacturer Part Number: SDA9489X
• Description: PIP IV Advanced SOPHISTICUS High-End Picture-In-Picture ICs
• Manufacturer: ETC [List of Unclassifed Manufacturers]

SDA 9489X
SDA 9589X
Table 4-5
Table 4-6
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
• A different way is to make usage of the automatic zooming. The zoom speed can be
• A zooming between two picture sizes can be performed by changing the HSHRINK,
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
Micronas
D1
D1
SIZEHOR
protocol each time the picture size should change. CZMEN should be used to
synchronize the update of HSHRNK/VSHRNK with SIZEHOR/SIZEVER.
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.
VSHRINK, SIZEHOR, SIZEVER values when CZMEN is enabled. Then the new
picture size is obtained by zooming and not taken immediately.
SIZEVER
0
0
1
1
0
0
1
1
D0
D0
0
1
0
1
0
1
0
1
Continuos Zoom
Number of stored pixel per line dependent on SIZEHOR
Number of stored lines per field
horizontal
vertical scaling
scaling
2:1
3:1
4:1
6:1
2:1
3:1
4:1
6:1
324
216
160
108
Y
625 lines source
132
88
66
44
PIP Pixel per line
(B-Y)
81
54
40
27
PIP lines
Preliminary Data Sheet
System Description
525 lines source
108
72
54
36
(R-Y)
81
54
40
27
4-17
2
C