cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 66

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

1.0 Functional Description
1.3 Device Description
Figure 1-17. Noninterlaced 262-Line (NTSC) Video Timing
Figure 1-18. Noninterlaced 262-Line (PAL-M) Video Timing
Figure 1-19. Noninterlaced 312-Line (PAL-B, D, G, H, I, N, Nc) Video Timing
1-50
261
308
261
262
309
262
1
310
1
311
2
2
312
VSYNC
START
3
Burst Phase = Reference Phase = 135˚ Relative to U
PAL Switch = 0, +V Component
Burst Phase = Reference Phase + 90˚ = 225˚ Relative to U
PAL Switch = 1, –V Component
VSYNC
Burst Begins with Negative Half-Cycle
Burst Phase = Reference Phase = 180˚ Relative to B-Y
3
Burst Begins with Positive Half-Cycle
Burst Phase = Reference Phase = 180˚ Relative to B-Y
of
Start
Burst Begins with Negative Half-Cycle
Burst Phase = Reference Phase = 180˚ Relative to B-Y
Burst Begins with Positive Half-Cycle
Burst Phase = Reference Phase = 180˚ Relative to B-Y
VSYNC
of
START
of
4
RESET*
1
4
FIELD 1
5
FIELD 1
2
Conexant
5
6
3
6
Flicker-Free Video Encoder with Ultrascale Technology
7
4
7
8
5
8
9
6
9
10
7
10
11
23
12
CX25870/871
21
24
21
100381B
100381_012
100381_013
100381_014