CX25870/871
1.0 Functional Description
Flicker-Free Video Encoder with Ultrascale Technology
1.3 Device Description
Figure 1-20. Interlaced 625-Line (SECAM-B, D, G, K, K1, L, M) Video Timing (Fields 1-4)
RESET*
Start of
VSYNC
Analog
End of the preceding
FIELD 1
4-field sequence
621 622 623 624 625
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23
D D
D
R
B
Analog
FIELD 2
R
309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336
D D
D D
B R
D
R
B
Analog
B
FIELD 3
621 622 623 624 625
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23
D D
D
R
D
Analog
B
R
B
FIELD 4
309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336
D D
D
D
R
B
R
R
NOTE(S):
1.
2.
D
D
and D color subcarrier signal sequences over four consecutive fields shown above.
color subcarrier frequency is 4.406250 MHz.
R
R
B
3. D color subcarrier frequency is 4.250000 MHz.
B
100381_091
100381B
Conexant
1-51
CONEXANT [ CONEXANT SYSTEMS, INC ]
