cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 185

• 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-1. Target Video Parameters for Standard Definition TV Output Formats (2 of 2)
Table A-2. Key Parameters for Supported Standard Definition Video Output Formats
Table A-3. Constant Values Dependent on Encoding Mode
100381B
Number of Lines
each for Vertical
Serration,
Equalization
NOTE(S):
(1)
2. ITU-R BT.601 blanking values given in square brackets [].
(3)
(4)
(5)
FSC (Hz)
Burst Start
Burst End
HSYNC
Width
HSYNC
Frequency
Active Begin
Image Center 35.667 !s
Blank Begin to
HSYNC
NOTE(S):
(1)
Description
Value for PAL-I is 250 ns.
Using NTSC line numbering convention from ITU-R BT.470.
Using PAL line numbering convention from ITU-R BT.470.
When programming the subcarrier increment, use relationship of F
HSYNC in this table refers to the analog horizontal synchronization pulse that starts every scan line.
Parameter
Mode
(1)
(1)
Modes
ALO
TLO
ATO
TTO
(1)
3,579,545
5.3 !s
7.82 !s
4.70 !s
63.555 !s
9.40 !s
1.50 !s
NTSC
3
NTSC-M
3,579,545
5.3 !s
7.82 !s
4.70 !s
64 !s
9.40 !s
35.667 !s
1.50 !s
3
52.0 !s
64.0 !s
NTSC-
60Hz
312.5
PAL
NTSC-J
288
4,433,618.75
5.60 !s
7.85 !s
4.70 !s
64 !s
10.5 !s
36.407 !s
1.50 !s
Interlaced
3
BDGHI
PAL-M
PAL-
Conexant
52.65556 !s
63.55556 !s
3
4,433,618.75
5.60 !s
7.85 !s
4.70 !s
64 !s
9.40 !s
35.667 !s
1.50 !s
NTSC
262.5
PAL-60
243
Appendix A Scaling and I/0 Timing Register Calculations
PAL-N
sc
to F
2.5
B,D,G,H,I
h
as given in ITU-R BT.470 instead of F
PAL-
3,582,056.25
5.60 !s
8.11 !s
4.70 !s
64 !s
10.5 !s
36.407 !s
1.50 !s
PAL-Nc
3
52.0 !s
64.0 !s
PAL
PAL-N
288
312
3,575,611.88
5.80 !s
8.32 !s
4.70 !s
63.555 !s
9.40 !s
35.667 !s
1.50 !s
NonInterlaced
PAL-M
2.5
PAL-Nc
52.65556 !s
63.55556 !s
4,433,619.49
5.60 !s
7.85 !s
4.70 !s
64 !s
10.5 !s
36.407 !s
1.50 !s
sc
NTSC
2.5
to F
243
262
PAL-60
SECAM
clk.
A-3