cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 198
cx25870
Manufacturer Part Number
cx25870
Description
Video Encoder With Adaptive Flicker Filtering And Hdtv Output
Manufacturer
Conexant Systems, Inc.
Datasheet
1.CX25870.pdf
(291 pages)
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Part Number
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Quantity
Price
Part Number:
cx25870-14P
Manufacturer:
CONEXANT
Quantity:
20 000
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Appendix A Scaling and I/0 Timing Register Calculations
Table A-7. Overscan Values, 640 x 480 PAL-BDGHI, Pixel-Based Controller, 1-Pixel Resolution, 2.5 µs HBlank (1 of 3)
A-16
H_CLKI
Controller Pixels
945
946
944
947
943
948
942
949
941
950
950
940
950
950
951
939
952
938
953
937
954
936
955
935
956
934
957
933
958
932
959
Total
V_LINESI
625
625
625
625
625
625
625
625
625
625
600
625
650
575
625
625
625
625
625
625
625
625
625
625
625
625
625
625
625
625
625
V_ACTIVEO
Active
240
240
240
240
240
240
240
240
240
240
250
240
231
261
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
Encoder Pixels
Conexant
H_CLKO
Total
945
946
944
947
943
948
942
949
941
950
912
940
988
874
951
939
952
938
953
937
954
936
955
935
956
934
957
933
958
932
959
Flicker-Free Video Encoder with Ultrascale Technology
Horizontal
16.65
16.73
16.56
16.82
16.47
16.91
16.38
17.00
16.29
17.09
13.63
16.20
20.27
17.17
16.11
17.26
16.02
17.35
15.93
17.43
15.84
17.52
15.75
17.61
15.66
17.69
15.57
17.78
15.48
17.86
9.88
Overscan (Percent)
Vertical
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
13.19
16.67
19.79
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
9.38
CX25870/871
Resolution
100381B
–0.02
–0.11
–0.20
–0.29
–0.37
–0.46
–0.55
–0.64
–0.73
–0.82
–0.91
–1.00
–1.09
–1.18
0.07
0.16
0.24
0.33
0.42
0.44
0.48
0.50
0.51
0.59
0.68
0.77
0.85
0.94
1.02
1.11
1.20
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