cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 234

• 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-26. 1024 x 768 PAL-BDGHI, Character Clock-Based Controller, 8-Pixel Resolution, >4 !s Hblank
Table A-27. Overscan Values 1024 x 768 PAL-BDGHI, Character Clock-Based Controller, 9-Pixel Resolution
A-52
H_CLKI
H_CLKI
1400
1400
1440
1320
1440
1395
1485
1350
1350
1350
1350
1305
1575
1575
Controller Pixels
Controller Pixels
Total
Total
V_LINESI
V_LINESI
1050
1000
1000
1000
1000
1000
1025
1050
1000
1000
975
975
950
925
V_ACTIVEO
V_ACTIVEO
Active
Active
247
229
240
240
240
240
240
235
229
247
240
240
253
260
Encoder Pixels
Encoder Pixels
Conexant
H_CLKO
H_CLKO
Total
Total
1456
1568
1536
1408
1536
1488
1584
1476
1512
1404
1440
1392
1596
1554
Flicker-Free Video Encoder with Ultrascale Technology
Horizontal
Horizontal
17.95
20.44
13.44
19.62
17.95
10.49
14.61
16.65
10.23
12.48
21.03
15.3
9.46
18.9
Overscan (Percent)
Overscan (Percent)
Vertical
Vertical
14.24
20.49
16.67
16.67
16.67
16.67
16.67
20.49
14.24
16.67
16.67
12.15
18.4
9.72
CX25870/871
Delta
Delta
-0.86
-6.18
-1.36
-3.79
-3.84
-4.19
-7.21
1.28
1.28
3.77
8.88
9.18
-0.8
100381B
-4