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參數(shù)資料
| 型號： | STV5342 |
| 廠商： | 意法半導體 |
| 英文描述： | TELETEXT DECODER WITH 4 INTERGATED PAGES |
| 中文描述： | 圖文電視解碼器，4 INTERGATED頁 |
| 文件頁數(shù)： | 7/20頁 |
| 文件大?。?/td> | 448K |
| 代理商： | STV5342 |
F1
TCS
SAND
0
4.67
8.5
1.5
33.5
64
continuous internal1MHz clock
Phase lock off
All timings in
μ
s
Phase lock
5
Figure 3 :
SynchronizationTiming
LSP
EP
BP
TCS
(interlaced)
TCS
(interlaced)
TCS
(non-interlaced)
0
0
0
2.33
4.66
32 34.33
32
27.33
59.33 64
All timings in
μ
s
64
64
621
(308)
622
(309)
623
(310)
624
(311)
625
(312)
1
2
3
4
5
6
309
310
311
312
313
314
(1)
315
(2)
316
(3)
317
(4)
318
(5)
319
(6)
308
309
310
311
312
1
2
3
4
5
6
The number positions indicate the end of lines.
The Teletext composite synchronization signal (TCS), whether interlacing is present or not, comprise
three components.
a) the line-synchronization pulses (LSP).
b) the equalizationpulses (EP)
c) the frame-synchronization pulses (BP).
The timing reference is specifiedby the descending edge of the signal LSP, with a tolerance spread of
±
100ns.
5
Figure 4 :
CompositeSync. Waveforms
STV5342
7/20
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