cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 227
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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
Manufacturer
Quantity
Price
Part Number:
cx25870-14P
Manufacturer:
CONEXANT
Quantity:
20 000
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CX25870/871
Flicker-Free Video Encoder with Ultrascale Technology
Table A-22. Overscan Values 1024 x 768 NTSC, Pixel-Based Controller, 1-Pixel Resolution, >1.50 !s. Hblank (4 of 4)
100381B
H_CLKI
1260
1260
1260
1260
1260
1260
1260
1255
1260
1260
1260
1260
1260
1260
1260
1260
1260
1265
1270
1275
Graphics Controller
Total
V_LINESI
990
985
980
960
975
965
970
945
925
930
935
940
945
950
955
915
920
945
945
966
V_ACTIVEO
Active
204
205
206
210
207
209
208
214
218
217
216
215
214
213
212
221
220
214
214
209
Encoder Pixels
Conexant
H_CLKO
Appendix A Scaling and I/0 Timing Register Calculations
Total
1584
1576
1568
1536
1560
1544
1552
1506
1480
1488
1496
1504
1512
1520
1528
1464
1472
1518
1524
1564
Horizontal
21.97
21.58
21.18
19.53
20.77
19.95
20.36
17.93
16.49
16.94
17.38
17.82
18.26
18.69
19.11
15.58
16.03
18.58
20.97
18.9
Overscan (Percent)
Vertical
16.05
15.64
15.23
13.58
14.81
13.99
11.93
10.29
11.11
11.52
11.93
12.35
12.76
11.93
11.93
13.99
14.4
10.7
9.05
9.47
Delta
5.92
5.94
5.95
5.95
5.96
5.96
5.96
6.24
6.27
6.32
6.34
6.35
6.52
6.57
6.64
6.97
6.98
6.2
6.3
6
A-45
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