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SPCA711A
Figure 3b. Interlaced 625-Line (PA L) Video Timing
620
621
622
623
624
625
1
2
3
4
5
6
7
22
23
24
Start
of
VSYNC
-U Phase
Analog
Field 5
620
621
622
623
624
625
1
2
3
4
5
6
7
22
23
24
Analog
Field 7
308
309
310
311
312
313
314
315
316
317
318
319
320
336
337
Analog
Field 6
308
309
310
311
312
313
314
315
316
317
318
319
320
336
337
Analog
Field 8
Field Five
Field Six
Field Seven
Field Eight
Burst
Blanking
Intervals
Burst Phase = Reference Phase = 1350 Relative to U
PAL Switch = 0, + V Component
Burst Phase = Reference Phase + 900 = 2250 Relative to U
PAL Switch = 1, -V Component