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參數(shù)資料
| 型號： | TVP5146M2PFPR |
| 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)： | 25/107頁 |
| 文件大?。?/td> | 949K |
| 代理商： | TVP5146M2PFPR |
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TVP5146M2
74
XTAL1
14.31818-MHz
Crystal
75
XTAL2
TVP5146M2
74
XTAL1
75
XTAL2
CL1
CL2
14.31818-MHz
1.8-V Clock
NC
R
RTC
45 CLK
18 CLK
L
S
B
0
3 CLK
128 CLK
23-Bit Fsc PLL Increment
Start
Bit
1 CLK
R
S
Invalid
Sample
Valid
Sample
M
S
B
22
Reserved
SLES141G
– JULY 2005 – REVISED APRIL 2011
Figure 2-12. Reference Clock Configurations
2.4
Real-Time Control (RTC)
Although the TVP5146M2 decoder is a line-locked system, the color-burst information is used to
determine accurately the color subcarrier frequency and phase. This ensures proper operation with
nonstandard video signals that do not follow exactly the required frequency multiple between color
subcarrier frequency and video line frequency. The frequency control word of the internal color subcarrier
PLL and the subcarrier reset bit are transmitted via terminal 37 (GLCO) for optional use in an end system
(for example, by a video encoder). The frequency control word is a 23-bit binary number. The
instantaneous frequency of the color subcarrier can be calculated from the following equation:
FPLL = (Fctrl / 2
23) × F
sclk
(2)
Where,
FPLL is the frequency of the subcarrier PLL
Fctrl is the 23-bit PLL frequency control word
Fsclk is two times the pixel frequency
Figure 2-13 shows the detailed timing diagram.
NOTE: RTC reset bit (R) is active-low, Sequence bit (S) PAL: 1 = (R-Y) line normal, 0 = (R-Y) line inverted, NTSC: 1 = no
change
Figure 2-13. RTC Timing
24
Functional Description
Copyright
2005–2011, Texas Instruments Incorporated
Product Folder Link(s): TVP5146M2
相關(guān)PDF資料 |
PDF描述 |
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| TVP5146M2PFP | COLOR SIGNAL DECODER, PQFP80 |
| TVP5146M2PFPRG4 | COLOR SIGNAL DECODER, PQFP80 |
| TVP5146M2PFPG4 | COLOR SIGNAL DECODER, PQFP80 |
| TVP5146PFPRG4 | COLOR SIGNAL DECODER, PQFP80 |
| TVP5146PFP | COLOR SIGNAL DECODER, PQFP80 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| 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 |
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