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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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TVP5146M2IPFPR 데이터시트(PDF) 21 Page - Texas Instruments |
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TVP5146M2IPFPR 데이터시트(HTML) 21 Page - Texas Instruments |
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21 / 109 page  f − Frequency − MHz −40 −35 −30 −25 −20 −15 −10 −5 0 5 10 0 1 2 3 4 5 6 7 No Notch Filter Notch 3 Filter Notch 1 Filter Notch 2 Filter −40 −35 −30 −25 −20 −15 −10 −5 0 5 10 0 1 2 3 4 5 6 7 f − Frequency − MHz No Notch Filter Notch 2 Filter Notch 1 Filter Notch 3 Filter TVP5146M2 www.ti.com SLES141H – JULY 2005 – REVISED FEBRUARY 2012 2.2.2.2 Y/C Separation Y/C separation can be done using adaptive 5-line (5-H delay) comb filters or a chroma trap filter. The comb filter can be selectively bypassed in the luma or chroma path. If the comb filter is bypassed in the luma path, chroma trap filters are used which are shown in Figure 2-6 and Figure 2-7. The TI patented adaptive comb filter algorithm reduces artifacts such as hanging dots at color boundaries. It detects and properly handles false colors in high frequency luminance images, such as a multiburst pattern or circle pattern. Adaptive comb filtering is the recommended mode of operation. Figure 2-6. Chroma Trap Filter Frequency Response, Figure 2-7. Chroma Trap Filter Frequency Response, NTSC ITU-R BT.601 Sampling PAL ITU-R BT.601 Sampling Copyright © 2005–2012, Texas Instruments Incorporated Functional Description 21 Submit Documentation Feedback Product Folder Link(s): TVP5146M2 |
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