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TVP5146M2IPFPR Datasheet(PDF) 21 Page - Texas Instruments

Part # TVP5146M2IPFPR
Description  NTSC/PAL/SECAM 4×10-Bit Digital Video Decoder With Macrovision™ Detection, YPbPr Inputs, 5-Line Comb Filter, and SCART Support
PDF  109 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TVP5146M2IPFPR Datasheet(HTML) 21 Page - Texas Instruments

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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
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