1.0 Functional Description
CX25870/871
1.3 Device Description
Flicker-Free Video Encoder with Ultrascale Technology
Figure 1-11. Interlaced 525-Line (NTSC) Video Timing
RESET*
Start
of
VSYNC
Analog
FIELD 1
523
524
525
4
5
6
7
22
1
2
3
8
9
10
BURST PHASE
Analog
FIELD 2
261
262
263
264
265
266
267
268
269
270
271
272
285
Analog
FIELD 3
523
524
525
4
5
6
7
22
1
2
3
8
9
10
BURST PHASE
Analog
FIELD 4
261
262
263
264
265
266
267
268
269
270
271
272
285
Burst Begins with Positive Half-Cycle
Burst Phase = Reference Phase = 180˚ Relative to B–Y
Burst Begins with Negative Half-Cycle
Burst Phase = Reference Phase = 180˚ Relative to B–Y
Note(s):
SMPTE line numbering convention is used rather than CCIR624.
100381_006
1-44
Conexant
100381B
CONEXANT [ CONEXANT SYSTEMS, INC ]
