cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 224
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:
cx25870-14P
Manufacturer:
CONEXANT
Quantity:
20 000
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Appendix A Scaling and I/0 Timing Register Calculations
Table A-22. Overscan Values 1024 x 768 NTSC, Pixel-Based Controller, 1-Pixel Resolution, >1.50 !s. Hblank (1 of 4)
A-42
H_CLKI
1173
1170
1170
1170
1175
1176
1170
1176
1165
1179
1175
1167
1182
1164
1160
1180
1185
1161
1188
1158
1155
1155
1155
1185
1155
1155
1190
1155
1155
1155
1190
Graphics Controller
Total
V_LINESI
1050
1015
1008
1050
1050
1050
1050
1050
1050
1050
1050
1050
1050
1005
1020
1035
1035
1050
945
980
975
945
945
945
945
945
945
990
975
930
990
V_ACTIVEO
Active
192
214
199
206
200
192
192
207
214
192
214
192
192
192
214
214
192
192
192
192
214
201
198
214
204
195
195
192
207
217
204
Encoder Pixels
Conexant
H_CLKO
Total
1564
1404
1508
1456
1504
1568
1560
1456
1398
1572
1410
1556
1576
1552
1392
1416
1580
1548
1584
1544
1386
1474
1496
1422
1452
1518
1564
1540
1430
1364
1496
Flicker-Free Video Encoder with Ultrascale Technology
Horizontal
20.97
11.97
18.04
15.11
17.82
21.18
20.77
15.11
11.59
21.38
12.34
20.57
21.58
20.36
11.21
12.71
21.77
20.16
21.97
19.95
10.82
16.15
17.38
13.08
14.88
18.58
20.97
19.74
13.57
17.38
9.39
Overscan (Percent)
Vertical
20.99
11.93
18.11
15.23
20.99
20.99
14.81
11.93
20.99
11.93
20.99
20.99
20.99
11.93
11.93
20.99
20.99
20.99
20.99
11.93
17.28
18.52
11.93
16.05
19.75
19.75
20.99
14.81
16.05
17.7
10.7
CX25870/871
Delta
-0.01
-0.07
-0.11
-0.22
-0.34
-0.42
-0.63
-0.73
-0.83
-1.04
-1.11
-1.14
-1.14
-1.17
-1.17
-1.25
-1.25
-1.31
0.03
0.13
0.19
0.39
0.41
0.59
0.78
0.79
0.98
1.15
1.22
1.33
100381B
0.3
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