cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 191

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

CX25870/871
Flicker-Free Video Encoder with Ultrascale Technology
Figure A-6. Allowable Overscan Compensation Ratios for Dual Display, 800x600 Input, PAL-BDGHI Output in 3:2 Clocking
Mode
100381B
NOTE(S):
1. All overscan solutions on this chart can be enabled by a data master that requires no more than 8 µs of HBlank time per line.
2. Use this chart for SECAM, PAL-N, and PAL-Nc allowable overscan compensation ratios.
LEGEND
= Pixel Clock Solution
= 8-Cycle Character Clock Solution
= 9-Cycle Character Clock Solution
22
20
18
16
14
12
10
8
8
10
12
Vertical Overscan Compensation Percentage
14
Conexant
Appendix A Scaling and I/0 Timing Register Calculations
16
18
20
22
100381_066
A-9