cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 218

• Manufacturer Part Number: cx25870
• Description: Video Encoder With Adaptive Flicker Filtering And Hdtv Output
• Manufacturer: Conexant Systems, Inc.

Appendix A Scaling and I/0 Timing Register Calculations
Table A-17. Overscan Values, 800 x 600 PAL-BDGHI, Character Clock-Based Controller, 8-Pixel Resolution
A-36
H_CLKI
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1040
960
920
Controller Pixels
Total
V_LINESI
750
750
785
775
750
780
760
770
745
730
755
765
740
725
720
735
715
750
V_ACTIVEO
Active
250
250
239
242
250
241
247
244
252
257
249
246
254
259
261
256
263
250
Encoder Pixels
Conexant
H_CLKO
Total
1152
1104
1256
1240
1200
1248
1216
1232
1192
1168
1208
1224
1184
1160
1152
1176
1144
1248
Flicker-Free Video Encoder with Ultrascale Technology
Horizontal
14.53
10.81
21.61
20.60
17.95
21.10
19.03
20.08
17.40
15.70
18.49
19.56
16.84
15.12
14.53
16.27
13.93
21.10
Overscan (Percent)
Vertical
13.19
13.19
17.01
15.97
13.19
16.32
14.24
15.28
12.50
10.76
13.54
14.58
11.81
10.07
11.11
13.19
9.38
8.68
CX25870/871
Resolution
–2.38
1.34
4.59
4.62
4.75
4.79
4.79
4.80
4.90
4.94
4.95
4.97
5.03
5.05
5.15
5.16
5.25
7.91
100381B