SDA9489X Datasheet, PDF (17/102 Pages) List of Unclassifed Manufacturers – PIP IV Advanced SOPHISTICUS High-End Picture-In-Picture ICs

SDA 9489X
SDA 9589X
Preliminary Data Sheet
System Description
SIZEHOR
D1 D0
0
0
0
1
1
0
1
1
horizontal
scaling
2:1
3:1
4:1
6:1
PIP Pixel per line
Y
(B-Y)
(R-Y)
324
81
81
216
54
54
160
40
40
108
27
27
Table 4-5 Number of stored pixel per line dependent on SIZEHOR
SIZEVER
D1 D0
0
0
0
1
1
0
1
1
vertical scaling
2:1
3:1
4:1
6:1
PIP lines
625 lines source
525 lines source
132
108
88
72
66
54
44
36
Table 4-6 Number of stored lines per field
4.6.2
Continuos Zoom
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 I²C
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
Micronas
4-17