cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 202
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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cx25870-14P
Manufacturer:
CONEXANT
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Appendix A Scaling and I/0 Timing Register Calculations
Table A-9. Overscan Values, 640 x 480 PAL-BDGHI, Character Clock-Based Controller, 9-Pixel Resolution, 2.5 µs HBlank
A-20
H_CLKI
1008
945
954
936
963
927
972
918
981
909
990
900
900
999
891
882
873
Controller Pixels
Total
V_LINESI
625
625
625
625
625
625
625
625
625
625
650
625
625
625
625
625
625
V_ACTIVEO
Active
240
240
240
240
240
240
240
240
240
240
231
240
240
240
240
240
240
Encoder Pixels
Conexant
H_CLKO
1008
Total
945
954
936
963
927
972
918
981
909
990
936
900
999
891
882
873
Flicker-Free Video Encoder with Ultrascale Technology
Horizontal
16.65
17.43
15.84
18.20
15.03
18.96
14.19
19.71
13.35
20.44
15.84
12.48
21.15
11.59
21.86
10.69
9.77
Overscan (Percent)
Vertical
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
16.67
19.79
16.67
16.67
16.67
16.67
16.67
16.67
CX25870/871
Resolution
–0.02
–0.82
–1.64
–2.47
–3.32
–3.95
–4.19
–5.07
–5.97
–6.89
100381B
0.77
1.54
2.30
3.04
3.77
4.49
5.19
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