STV0118 Ver la hoja de datos (PDF) - STMicroelectronics
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STV0118 Datasheet PDF : 42 Pages
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STV0118
IV - FUNCTIONAL DESCRIPTION (continued)
Figure 1 : Input Data Format
4T
4T
E
S
E
A
A
A
V
V
V
NTSC, PAL M
(525 Line / 60Hz)
276T
Digital Standing Interval
1716T
Line Duration
1440T
Digital Active Line
PAL B, D, G, H, I, N
(625 Line / 50Hz)
288T
1728T
1440T
Figure 2 : PAL-BDGHI, PAL-N Typical VBI Waveform, Interlaced Mode (CCIR-625 Line Numbering)
0V
IV
A
B
308
309
310
311
312
313
314
315
316
317
318
319
320
Full VBI1
Partial VBI1
A
I
621
622
623
624
625
1
2
3
4
5
6
7 22
23
Full VBI2
Partial VBI2
A
II
308
309
310
311
312
313
314
315
316
317
318 317 335 336
A
B
III
621
622
623
624
625
1
2
3
4
5
6
7
8
I
II
C
III
IV
0V :
Frame synchronization reference
I, II, III, IV : 1st and 5th, 2nd and 6th, 3rd and 7th, 4th and 8th fields
A:
Burst phase : nominal value +135°
B:
Burst phase : nominal value -135°
C:
Burst suppression internal
Figure 3 : PAL-BDGHI, PAL-N Typical VBI Waveform, Non-interlaced Mode (“CCIR-like” Line Numbering)
Partial VBI
0V
Full VBI
A
B
308
309
310
311
312
1
2
3
4
5
6
7
8
22
Burst phase toggles every line
7/42
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