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參數資料
| 型號： | TVP5146PFPG4 |
| 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： | GREEN, PLASTIC, HTQFP-80 |
| 文件頁數： | 39/109頁 |
| 文件大小： | 1658K |
| 代理商： | TVP5146PFPG4 |
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27
SLES084C August 2007
TVP5146
2.6.4 I2C Timing Requirements
The TVP5146 decoder requires delays in the I2C accesses to accommodate the internal
processor timing. In accordance with I2C specifications, the TVP5146 decoder holds the I2C
clock line (SCL) low to indicate the wait period to the I2C master. If the I2C master is not
designed to check for the I2C clock line held-low condition, then the maximum delays must
always be inserted where required. These delays are of variable length; maximum delays are
indicated in the following diagram:
Normal register
S
1011 1000
ACK
Subaddress
ACK
Send data
ACK
Wait 64
s
P
2.7
VBI Data Processor
The TVP5146 VBI data processor (VDP) slices various data services like teletext (WST,
NABTS), closed caption (CC), wide screen signaling (WSS), program delivery control (PDC),
vertical interval time code (VITC), video program system (VPS), copy generation management
system (CGMS) data, and electronic program guide (Gemstar) 1x/2x. Table 26 shows the
supported VBI system.
These services are acquired by programming the VDP to enable the reception of one or more
VBI data standard(s) in the VBI. The VDP can be programmed on a line-per-line basis to enable
simultaneous reception of different VBI formats, one per line. The results are stored in a FIFO
and/or registers. Because of its high data bandwidth, the teletext results are stored in FIFO only.
The TVP5146 decoder provides fully decoded V-CHIP data to the dedicated registers at
Table 26. Supported VBI Systems
VBI SYSTEM
STANDARD
LINE NUMBER
NUMBER OF BYTES
Teletext WST A
SECAM
6–23 (Fields 1 and 2)
38
Teletext WST B
PAL
6–22 (Fields 1 and 2)
43
Teletext NABTS C
NTSC
10–21 (Fields 1 and 2)
34
Teletext NABTS D
NTSC-J
10–21 (Fields 1 and 2)
35
Closed caption
PAL
22 (Fields 1 and 2)
2
Closed caption
NTSC
21 (Fields 1 and 2)
2
WSS
PAL
23 (Fields 1 and 2)
14 bits
WSS-CGMS
NTSC
20 (Fields 1 and 2)
20 bits
VITC
PAL
6–22
9
VITC
NTSC
10–20
9
VPS (PDC)
PAL
16
13
V-CHIP (decoded)
NTSC
21 (Field 2)
2
Gemstar 1
×
NTSC
2
Gemstar 2
×
NTSC
5 with frame byte
User
Any
Programmable
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TVP5146PFPR | 功能描述:視頻 IC NTSC/PAL/SECAM 4x10B 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 |
| TVP5147EVM | 功能描述:視頻 IC 開發工具 TVP5147 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評估:LMH1251 工作電源電壓:5 V |
| TVP5147M1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:NTSC/PAL/SECAM 2x10-Bit Digital Video Decoder With Macrovision Detection, YPbPr Inputs, and 5-Line Comb Felter |
| TVP5147M1_08 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:NTSC/PAL/SECAM 2x10-Bit Digital Video Decoder With Macrovision Detection, YPbPr Inputs, and 5-Line Comb Felter |
| TVP5147M1IPFP | 功能描述:視頻 IC 10B Hi Qual Sgl-Chip Dig 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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