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參數(shù)資料
| 型號(hào)： | S5D0127X01-Q0R0 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | MULTISTANDARD VIDEO DECODER/SCALER |
| 中文描述： | 多標(biāo)準(zhǔn)視頻解碼器/倍線器 |
| 文件頁(yè)數(shù)： | 27/96頁(yè) |
| 文件大?。?/td> | 1509K |
| 代理商： | S5D0127X01-Q0R0 |
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ELECTRONICS
S5D0127X01 Data Sheet
MULTIMEDIA VIDEO
PAGE 27 OF 96
Modified on May/04/2000
Figure 22. Vertical Processing
1.5.1. Luma Comb Filter
The luma comb filter reduces high frequency chroma leakage into the luminance path. The S5D0127X01 uses
2-line stored luma data for combing. Filter coefficients for different video input standards are provided and can be
selected automatically based on the video input. Filter coefficients may also be set manually.
An optional active comb is employed for NTSC video. Selection of luma comb coefficients is based on line-to-line
chroma correlation.
Provision is made to disable luma comb for S-video, component, or digital video input. This is achieved by
programming the luma comb control register
MNYCMB
to “1”, and by choosing the value 3 or 4 for
YCMBCO[2:0]
.
This will result either a 1-line or 2-line luma delay. Care must be exercised when disabling the luma comb so that
luma line delay matches the chroma path line delay.
Special filtering is applied to ensure that high vertical bandwidth is retained for the luma path.
1.5.2. Chroma Comb Filter
The chroma comb filter provides further color separation from the composite video. Filter coefficients can be
automatically selected based on the input video standard or manually set using
NMCCMB
and
CCMBCO[2:0]
.
Luma
Chroma
Horizontal
Scaler
Horizontal
Scaler
Luma
Adaptive
Comb
Chroma
Comb
Y
C
Luma
Vertical
Scaler
Chroma
Vertical
Scaler
Vertical
BW
Retention
Sum
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