cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 204
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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Appendix A Scaling and I/0 Timing Register Calculations
Table A-10. Overscan Values, 800 x 600 NTSC, Pixel-Based Controller, 1-Pixel Resolution (2 of 4)
A-22
H_CLKI
825
825
825
825
825
825
825
825
833
830
840
840
835
840
840
840
840
840
840
840
840
840
840
840
840
840
840
847
850
845
850
Controller Pixels
Total
V_LINESI
763
756
749
742
735
714
728
721
750
735
780
785
735
765
790
750
770
755
775
740
760
730
745
720
735
725
715
750
777
735
756
V_ACTIVEO
Active
207
209
211
213
215
221
217
219
210
215
202
201
215
206
200
210
205
209
204
213
208
216
212
219
215
218
221
210
203
215
209
Encoder Pixels
H_CLKO
Total
1199
1188
1177
1166
1155
1122
1144
1133
1190
1162
1248
1256
1169
1224
1264
1200
1232
1208
1240
1184
1216
1168
1192
1152
1176
1160
1144
1210
1258
1183
1224
Conexant
Flicker-Free Video Encoder with Ultrascale Technology
Horizontal
19.47
18.72
17.96
17.19
16.40
13.94
15.59
14.77
18.86
16.90
22.63
23.12
17.40
21.11
23.61
19.53
21.62
20.07
22.13
18.45
20.59
17.33
18.99
16.18
17.89
16.76
15.59
20.20
23.24
18.38
21.11
Overscan (Percent)
Vertical
14.81
13.99
13.17
12.35
11.52
10.70
13.58
11.52
16.87
17.28
11.52
15.23
17.70
13.58
15.64
13.99
16.05
12.35
14.40
11.11
12.76
11.52
10.29
13.58
16.46
11.52
13.99
9.05
9.88
9.88
9.05
CX25870/871
Resolution
4.65
4.73
4.79
4.84
4.88
4.89
4.89
4.90
5.28
5.38
5.76
5.84
5.88
5.88
5.91
5.95
5.99
6.07
6.08
6.10
6.19
6.22
6.24
6.30
6.37
6.47
6.54
6.62
6.78
6.85
7.12
100381B
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