cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 208

• 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-12. Overscan Values, 800 x 600 NTSC, Character Clock-Based Controller, 9-Pixel Resolution, 0–3.0 µs HBlank
A-26
H_CLKI
810
810
810
819
819
819
819
855
855
882
882
900
900
900
900
Controller Pixels
Total
V_LINESI
805
770
735
800
750
775
725
770
735
750
725
735
728
721
714
V_ACTIVEO
Active
196
205
215
197
210
204
218
205
215
210
218
215
217
219
221
Encoder Pixels
H_CLKO
Total
1242
1188
1134
1248
1170
1209
1131
1254
1197
1260
1218
1260
1248
1236
1224
Conexant
Flicker-Free Video Encoder with Ultrascale Technology
Horizontal
22.25
18.72
14.85
22.63
17.47
20.13
14.62
23.00
19.33
23.36
20.72
23.36
22.63
21.88
21.11
Overscan (Percent)
Vertical
19.34
15.64
11.52
18.93
13.58
16.05
10.29
15.64
11.52
13.58
10.29
11.52
10.70
9.88
9.05
CX25870/871
Resolution
10.43
11.84
11.93
12.00
12.06
2.91
3.08
3.33
3.70
3.89
4.08
4.34
7.36
7.81
9.78
100381B