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參數(shù)資料
| 型號(hào)： | ML6440 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Multi-Standard 8-bit Adaptive Digital Input Comb Filter(多標(biāo)準(zhǔn)8位自適應(yīng)數(shù)字輸入組合濾波器) |
| 中文描述： | 多標(biāo)準(zhǔn)的8位數(shù)字輸入自適應(yīng)梳狀濾波器（多標(biāo)準(zhǔn)8位自適應(yīng)數(shù)字輸入組合濾波器） |
| 文件頁數(shù)： | 8/18頁 |
| 文件大?。?/td> | 227K |
| 代理商： | ML6440 |
ML6440
8
BIT
D7
D6
D5
D4
D3
D2
D1
D0
Mode—Function
Y+C or CV
Select
Adaption
Threshold
2
AT2 = 0
or 1
CI6/DI6
Adaption
Threshold
1
AT1 = 0
or 1
CI5/DI5
Adaption
Threshold
0
AT0 = 0
or 1
CI4/DI4
Comb
Mode
1
CM1 = 0
or 1
CI3/DI3
Comb
Mode
0
CM0 = 0
or 1
CI2/DI2
Square Pixel/
CCIR601
Select
Sq. Pixel = 1
CCIR601 = 0
CI1/DI1
PAL
or NTSC
Select
PAL = 1
NTSC = 0
CI0/DI0
Value
Y+C = 1
CV = 0
CI7/DI7
Parallel Mode
Input Pin
PREAMBLE
DATA ADDRESS (B3)
HEX
DATA (D[7:0]
2
)
Table 1. Serial Data Format
Table 2. Control Register Format D[7:0] (Serial or Parallel Mode)
Table 3. Clock Frequency Requirements
STANDARD/RATE
CCIR601
SQUARE PIXEL
NTSC (f
SC
= 3.58MHz)
PAL (f
SC
= 4.43MHz)
13.5MHz
13.5MHz
12.27MHz
14.75MHz
COMB MODE, D[3,2]
NTSC
PAL
00
01
10
Y adaptive, C comb 100% active
Y adaptive, C adaptive
Y 100% comb active, C 100% comb active
Y adaptive, C adaptive
Y adaptive, C comb 100% active
Y 100% comb active, C 100% comb active
Not recommended due reduced performance
11
Bandsplitting only (no combing)
Bandsplitting only (no combing)
Table 4. Adaption Threshold Bit Table
ADAPTION THRESHOLD D[6,5,4]
ADAPTION THRESHOLD LEVEL
000
Automatic threshold for minimal comb artifact generation for various video
source material.
Threshold for computer graphics applications, minimizing dot crawl on
bold lettering.
Various degrees of thresholds.
Threshold for better reproduction of natural photographic images.
001
010 to 110
111
Table 5. Comb Mode Bit Table
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
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