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| 型號(hào)： | TEA2028-TEA2029 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | APPLICATION NOTE |
| 中文描述： | 應(yīng)用筆記 |
| 文件頁(yè)數(shù)： | 35/47頁(yè) |
| 文件大?。?/td> | 532K |
| 代理商： | TEA2028-TEA2029 |
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V.8 - Miscellaneousfunctions
V.8.1 - Super sandcastle signal generator
This signal used in video stage, is available on
Pin 11.
It has 3 levelsat specifiedtime intervals :
- 2.5V level
Used for vertical blanking at each frame flyback.
Its duration is 21 lines and is generated by the
framelogic.
This level will be maintained if vertical scanning
failure is detectedon Pin2.
- 4.5V level
Usedfor horizontalblanking, its durationisdeter-
mined by comparing the line flyback signal on
Figure70
Pin 12 to an internalvoltageof 0.25V.
- 10V level
This signal is used by color decoding stage. Its
duration of 4
μ
s is determined by line logic cir-
cuitry. With respect to the videosignal on Pin 27,
this level is positioned such that it is used to
sample the burst frequencytransmitted just after
the sync pulse.
V.8.2- Videoand 50/60Hzstandardrecognition
output
A 3-level signal is available at Pin 24 for video
identification(Mute) andfor50 and60Hzstandards
recognition.
24
V
24
CC
V+
CC
V+
Mute
R
R
0
1
60Hz
50Hz
60Hz
Standard
Without
Video
50Hz
Standard
/2
V
CC
V
CC
0
V
24
Transmit
Identification
2
Figure71
SUPER
SAND CASTLE
(Pin 11)
2.5V
4.5V
10V
4
μ
s
Line Blanking(12
μ
s)
Frame Blanking (21 lines)
4.7
μ
s
0.3
μ
s
Burst
VIDEO SIGNAL
(Pin 27)
2
TEA2028 - TEA2029 APPLICATIONNOTE
35/46
相關(guān)PDF資料 |
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| TEA2028 | APPLICATION NOTE |
| TEA2028B | SWITCH MODE POWER SUPPLY PRIMARY CIRCUIT |
| TEA2128 | SWITCH MODE POWER SUPPLY PRIMARY CIRCUIT |
| TEA2164S | SWITCH MODE POWER SUPPLY PRIMARY CIRCUIT |
| TEA2029C | COLOR TV SCANNING AND POWER SUPPLY PROCESSOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TEA2029 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:APPLICATION NOTE |
| TEA2029C | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:COLOR TV SCANNING AND POWER SUPPLY PROCESSOR |
| TEA2029CV | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Timing Processor (LINE, FRAME, SMPS) for TV Sets |
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| TEA2031A_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:COLOR TV EAST-WEST CORRECTION |
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