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參數(shù)資料
| 型號(hào)： | TVP5145 |
| 英文描述： | NTSC/PAL/SECAM/Component Digital Video Decoder With Macrovision(TM) Detection |
| 中文描述： | 的NTSC / PAL / SECAM制式/分量數(shù)字視頻解碼器通過Macrovision（TM）的檢測(cè) |
| 文件頁數(shù)： | 24/92頁 |
| 文件大?。?/td> | 525K |
| 代理商： | TVP5145 |
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2
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8
f
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Frequency
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MHz
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40
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35
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30
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25
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20
–
15
–
10
–
5
0
5
10
0
1
2
3
4
5
6
7
A
–
No Notch Filter
Notch2 Filter
Notch1 Filter
Notch3 Filter
Figure 2
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14. Chroma Trap Filter Frequency Response, PAL Square Pixel Sampling
2.2.4
Luminance Processing
The digitized composite video signal passes through either a luminance comb filter or a chroma trap filter, either of
which removes chrominance information from the composite signal to generate a luminance signal. The luminance
signal is then fed to the input of a peaking circuit. Figure 2
–
15 illustrates the basic functions of the luminance data
path. In the case of S-video, the luminance signal bypasses the comb filter or chroma trap filter and is fed directly
to the circuit. High frequency components of the luminance signal are enhanced by a peaking filter (edge-enhancer).
Figure 2
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16, Figure 2
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17, and Figure 2
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18 show the characteristics of the peaking filter at four different gain settings
programmable via the host port.
Bandpass
Filter
x
Gain
Peaking
Filter
IN
+
OUT
Delay
Peak
Detector
Figure 2
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15. Luminance Edge-Enhancer Peaking Block Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TVP5145EVM | 制造商:Texas Instruments 功能描述:TVP5145EVM - Bulk |
| TVP5145PFP | 功能描述:視頻 IC NTSC/PAL/SECAM/ Comp 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 |
| TVP5146 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:NTSC/PAL / SECAM 4 X 10 BIT DIGITAL VIDEO DECODER WITH MACROVISION DETECTION YPBPR/RGB INPUTS 5 LINE COMB FILTER AND SCART SUPPORT |
| TVP5146_12 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:NTSC/PAL/SECAM 4x10-Bit Digital Video Decoder With Macrovision?￡a Detection, YPbPr/RGB Inputs, 5-Line Comb Filter, and SCART Support |
| TVP5146EVM | 功能描述:視頻 IC 開發(fā)工具 TVP5146 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評(píng)估:LMH1251 工作電源電壓:5 V |
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