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參數(shù)資料
| 型號： | TVP5146M2PFPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 顏色信號轉(zhuǎn)換 |
| 英文描述： | COLOR SIGNAL DECODER, PQFP80 |
| 封裝： | GREEN, PLASTIC, HTQFP-80 |
| 文件頁數(shù)： | 37/107頁 |
| 文件大?。?/td> | 1427K |
| 代理商： | TVP5146M2PFPG4 |
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Functional Description
27
SLES141B—August 2007
TVP5146M2PFP
2.7.2 VBI Raw Data Output
The TVP5146M2 decoder can output raw A/D video data at twice the sampling rate for external VBI slicing.
This is transmitted as an ancillary data block, although somewhat differently from the way the sliced VBI data
is transmitted in the FIFO format as described in Section 2.7.1. The samples are transmitted during the active
portion of the line. VBI raw data uses ITU-R BT.656 format having only luma data. The chroma samples are
replaced by luma samples. The TVP5146M2 decoder inserts a four-byte preamble 000h 3FFh 3FFh 180h
before data start. There are no checksum bytes and fill bytes in this mode.
Table 28. VBI Raw Data Output Format
BYTE
NO.
D9
(MSB)
D8
D7
D6
D5
D4
D3
D2
D1
D0
(LSB)
DESCRIPTION
0
1
VBI raw data preamble
2
1
VBI raw data preamble
3
0
1
0
4
1. Data
5
2. Data
2 pixel rate luma data
:
2
× pixel rate luma data
(i.e., NTSC 601: n = 1707)
n–1
n–5. Data
(i.e., NTSC 601: n = 1707)
n
n–4. Data
2.8
Reset and Initialization
Reset is initiated at power up or any time terminal 34 (RESETB) is brought low. Table 29 describes the status
of the TVP5146M2 terminals during and immediately after reset.
Table 29. Reset Sequence
SIGNAL NAME
DURING RESET
RESET COMPLETED
Y[9:0], C[9:0]
Input
High-impedance
RESETB, PWDN, SDA, SCL, FSS,
AVID, GLCO, HS, VS, FID
Input
INTREQ
Input
Output
DATACLK
Output
High-impedance
TI recommends the following power-up sequence.
3 ms (min)
RESETB
(Terminal 34)
1 ms (min)
Invalid I2C Cycle
Valid
Normal Operation
100
ms
SDA
(Terminal 29)
Power (1.8 V)
Power (3.3 V)
Reset
NOTE: All times shown are minimum values. Maximum time between 1.8 V and 3.3 V should be no longer than 1 second.
Figure 220. Reset Timing
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TVP5146M2PFPR | 功能描述:視頻 IC 10B Hi Qual Sgl-Chip Dig Vid Dec 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 |
| TVP5146M2PFPRG4 | 制造商:Texas Instruments 功能描述: |
| TVP5146PFP | 功能描述:視頻 IC 10B High Qual S-Chip Dig Vid 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 |
| TVP5146PFP | 制造商:Texas Instruments 功能描述:IC VIDEO DECODER 10BIT 30MSPS HTQFP-80 制造商:Texas Instruments 功能描述:IC, VIDEO DECODER, 10BIT 30MSPS HTQFP-80 |
| TVP5146PFPG4 | 制造商:Texas Instruments 功能描述:10BIT VIDEO DECODER SMD HTQFP80 |
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