cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 207
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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CX25870/871
Flicker-Free Video Encoder with Ultrascale Technology
Table A-11. Overscan Values, 800 x 600 NTSC, Character Clock-Based Controller, 8-Pixel Resolution, 0–1.5 µs HBlank
100381B
H_CLKI
800
800
800
800
800
800
840
840
840
840
840
840
840
840
840
840
840
840
840
840
840
840
880
Controller Pixels
Total
V_LINESI
777
819
798
756
714
735
780
785
765
790
750
770
755
775
740
760
730
745
720
735
725
715
735
V_ACTIVEO
Active
203
193
198
209
221
215
202
201
206
200
210
205
209
204
213
208
216
212
219
215
218
221
215
Encoder Pixels
H_CLKO
Total
1184
1248
1216
1152
1088
1120
1248
1256
1224
1264
1200
1232
1208
1240
1184
1216
1168
1192
1152
1176
1160
1144
1232
Conexant
Appendix A Scaling and I/0 Timing Register Calculations
Horizontal
18.45
22.63
20.59
16.18
11.25
13.79
22.63
23.12
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
21.62
Overscan (Percent)
Vertical
16.46
20.58
18.52
13.99
11.52
16.87
17.28
15.23
17.70
13.58
15.64
13.99
16.05
12.35
14.40
11.11
12.76
11.52
10.29
11.52
9.05
9.88
9.05
Resolution
10.10
1.98
2.05
2.07
2.19
2.20
2.26
5.76
5.84
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
A-25
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