cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 205

• 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
Table A-10. Overscan Values, 800 x 600 NTSC, Pixel-Based Controller, 1-Pixel Resolution (3 of 4)
100381B
H_CLKI
854
850
855
850
855
861
861
860
861
868
865
875
875
870
875
875
875
875
875
875
875
875
875
875
875
875
875
882
875
875
880
Controller Pixels
Total
V_LINESI
750
735
770
714
735
750
775
735
725
750
735
762
750
735
759
747
744
756
741
753
726
738
723
735
720
717
732
750
714
729
735
V_ACTIVEO
Active
210
215
205
221
215
210
204
215
218
210
215
207
210
215
208
211
212
209
213
210
217
214
218
215
219
220
216
210
221
217
215
Encoder Pixels
H_CLKO
Total
1220
1190
1254
1156
1197
1230
1271
1204
1189
1240
1211
1270
1250
1218
1265
1245
1240
1260
1235
1255
1210
1230
1205
1225
1200
1195
1220
1260
1190
1215
1232
Conexant
Appendix A Scaling and I/0 Timing Register Calculations
Horizontal
20.85
18.86
23.00
16.47
19.33
21.50
24.03
19.80
18.79
22.13
20.26
23.97
22.75
20.72
23.67
22.44
22.13
23.36
21.81
23.06
20.20
21.50
19.87
21.18
19.53
19.20
20.85
23.36
18.86
20.53
21.62
Overscan (Percent)
Vertical
13.58
11.52
15.64
11.52
13.58
16.05
11.52
10.29
13.58
11.52
14.81
13.58
11.52
14.40
13.17
12.76
13.99
12.35
13.58
10.70
11.93
10.29
11.52
11.11
13.58
10.70
11.52
9.05
9.88
9.47
9.05
Resolution
10.10
7.27
7.33
7.36
7.42
7.81
7.92
7.98
8.28
8.50
8.55
8.74
9.15
9.17
9.20
9.26
9.27
9.37
9.37
9.47
9.48
9.50
9.56
9.58
9.65
9.66
9.73
9.74
9.78
9.80
9.83
A-23