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參數(shù)資料
| 型號： | TVP5020 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 顏色信號轉換 |
| 英文描述： | COLOR SIGNAL DECODER, PQFP80 |
| 封裝： | POWER, PLASTIC, TQFP-80 |
| 文件頁數(shù)： | 71/89頁 |
| 文件大?。?/td> | 376K |
| 代理商： | TVP5020 |
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2–59
2.15.32 TTX Control Register
VIP address
1A0
VMI address
A0
I2C address
A0
7
6
5
4
3
2
1
0
Reserved
Full-
field
enable
Custom
framing
code
CCD en-
able
TTX
mode
Teletext mode
0 = NABTS
1 = WST
CCD enable
0 = Closed caption is disabled
1 = Closed caption is enabled
Custom sync
0 = Use default teletext sync pattern
1 = Use sync pattern register
Full field enable
0 = No teletext search after VBI area
1 = Teletext search all lines after VBI
The TTX control register allows operating parameters of the VBI data processor to be controlled. The TTX
mode selection is independent of PAL/NTSC mode, which is selected by the TVP5020. This effectively
controls the default framing code and data rate. Closed caption data is affected by 525 lines versus 625 lines
(but not NABTS/WST). For NTSC and PAL M, the CCD data search is on Line 21; for PAL B,G,H,I,N it is
on Line 22. Custom framing code affects teletext data ONLY – closed caption data always uses the default
sync pattern.
2.15.33 Line Enable Registers
VIP address
1A1
VMI address
A1
I2C address
A1
7
6
5
4
3
2
1
0
Enable
line
17/280
(14/327)
Enable
line
16/279
(13/326)
Enable
line
15/278
(12/325)
Enable
line
14/277
(11/324)
Enable
line
13/276
(10/323)
Enable
line
12/275
(9/322)
Enable
line
11/274
(8/321)
Enable
line
10/273
(7/320)
VIP address
1A2
VMI address
A2
I2C address
A2
7
6
5
4
3
2
1
0
Enable
line
25/288
(22/335)
Enable
line
24/287
(21/334)
Enable
line
23/286
(20/333)
Enable
line
22/285
(19/332)
Enable
line
21/284
(18/331)
Enable
line
20/283
(17/330)
Enable
line
19/282
(16/329)
Enable
line
18/281
(15/328)
Line enable XX
0 = No teletext search on line XX
1 = Search line XX for teletext data
NOTE: Line numbers in parentheses refer to 625 Line systems
In both VBI only and full field modes, the vertical interval lines can be individually enabled or disabled. Only
lines that are enabled are searched for the selected type of teletext data. This allows some amount of filtering
on a physical location basis. If closed caption data is enabled, this overrides the enable/disable bit for line
21 (22). If full field mode is enabled, all lines after the vertical interval are searched for the selected type of
teletext data. The registers are initalized to 0x00 on reset.
相關PDF資料 |
PDF描述 |
|---|---|
| TVP5022 | COLOR SIGNAL DECODER, PQFP80 |
| TVP5031PFP | COLOR SIGNAL DECODER, PQFP80 |
| TVP5040CPFP | COLOR SIGNAL DECODER, PQFP80 |
| TVP5040PFP | COLOR SIGNAL DECODER, PQFP80 |
| TVP5041PFP | COLOR SIGNAL DECODER, PQFP80 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TVP5020CPFP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TVP5020PFC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| TVP5020TQFP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:NTSC/PAL VIDEO DECODER |
| TVP5021PFP | 功能描述:視頻 IC NTSC/PAL DIGITAL VIDEO DECODER RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TVP5021PFPG4 | 功能描述:視頻 IC NTSC/PAL DIGITAL VIDEO DECODER RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
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