- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374047 > ADV7192 (Analog Devices, Inc.) Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs PDF資料下載
參數(shù)資料
| 型號： | ADV7192 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs |
| 中文描述： | 視頻編碼器與六10位DAC，54兆赫采樣和逐行掃描輸入 |
| 文件頁數(shù)： | 42/69頁 |
| 文件大小： | 664K |
| 代理商： | ADV7192 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁當前第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁
ADV7192
–42–
REV. 0
DNR17
DNR16
DNR15
DNR14
DNR13
DNR12
DNR11
DNR10
DNR THRESHOLD
DNR DNR DNR DNR DNR DNR
15 14 13 12 11 10
0 0
0
0
0
0
1
1
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
62
63
0
1
2 PIXELS
4 PIXELS
DNR16
BORDER AREA
0
1
8 PIXELS
16 PIXELS
DNR17
BLOCK SIZE
CONTROL
Figure 87. DNR Register 1
DNR2 BIT DESCRIPTION
DNR Input Select (DNR20–DNR22)
Three bits are assigned to select the
fi
lter which is applied to the
incoming Y data. The signal which lies in the passband of the
selected
fi
lter is the signal which will be DNR processed. Figure 88
shows the
fi
lter responses selectable with this control.
DNR Mode Control (DNR23)
This bit controls the DNR mode selected. A Logic 0 selects
DNR mode, a Logic 1 selects DNR Sharpness mode.
DNR works on the principle of de
fi
ning low amplitude, high-
frequency signals as probable noise and subtracting this noise
from the original signal.
In DNR mode, it is possible to subtract a fraction of the signal
which lies below the set threshold, assumed to be noise, from
the original signal. The threshold is set in DNR Register 1.
When DNR Sharpness mode is enabled it is possible to add a
fraction of the signal which lies above the set threshold to the
original signal, since this data is assumed to be valid data and
not noise. The overall effect being that the signal will be boosted
(similar to using Extended SSAF Filter).
FREQUENCY – MHz
1
0.4
0.6
0.2
0
1
M
2
3
4
6
5
0.8
0
FILTER D
FILTER C
FILTER B
FILTER A
Figure 88. Filter Response of Filters Selectable
FILTER OUTPUT
< THRESHOLD
GAIN CONTROL
BLOCK SIZE CONTROL
BORDER AREA
BLOCK OFFSET
GAIN
CORING GAIN DATA
CORING GAIN BORDER
FILTER BLOCK
FILTER OUTPUT
> THRESHOLD
DNR
OUT
MAIN SIGNAL PATH
Y DATA
INPUT
NOISE SIGNAL PATH
SUBTRACT
SIGNAL IN
THRESHOLD
RANGE
FROM
ORIGINAL
SIGNAL
DNR
MODE
FILTER OUTPUT
> THRESHOLD
GAIN CONTROL
BLOCK SIZE CONTROL
BORDER AREA
BLOCK OFFSET
GAIN
CORING GAIN DATA
CORING GAIN BORDER
FILTER BLOCK
FILTER OUTPUT
< THRESHOLD
DNR
OUT
MAIN SIGNAL PATH
Y DATA
INPUT
NOISE SIGNAL PATH
ADD
SIGNAL
ABOVE
THRESHOLD
RANGE
TO
ORIGINAL
SIGNAL
DNR
SHARPNESS
MODE
Figure 89. Block Diagram for DNR Mode and DNR Sharp-
ness Mode
Block Offset (DNR24–DNR27)
Four bits are assigned to this control which allows a shift of the
data block of 15 pixels maximum. Consider the coring gain
positions
fi
xed. The block offset shifts the data in steps of one
pixel such that the border coring gain factors can be applied at
the same position regardless of variations in input timing of the
data.
O X X X X X X O
O X X X X X X O
APPLY DATA
CORING GAIN
APPLY BORDER
CORING GAIN
DNR27-DNR24
= 01HEX
OFFSET
CAUSED BY
VARIATIONS IN
INPUT TIMING
O X X X X X X O
O X X X X X X O
O X X X X X X O
O X X X X X X O
Figure 90. DNR27–DNR24 Block Offset Control
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADV7194KST | Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling |
| ADV7194 | Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling |
| ADV7202 | Simultaneous Sampling Video Rate Codec |
| ADV7300A | Multiformat SD, Progressive Scan/HDTV Video Encoder with Six NSV⑩ 12-Bit DACs |
| ADV7300AKST | Multiformat SD, Progressive Scan/HDTV Video Encoder with Six NSV⑩ 12-Bit DACs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADV7192KST | 制造商:AD 制造商全稱:Analog Devices 功能描述:Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs |
| ADV7194 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling |
| ADV7194KST | 制造商:Analog Devices 功能描述:Video Encoder 6DAC 10-Bit 80-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:PROFESSIONAL/HDTV NTSC/PAL ENCODER I.C. - Bulk 制造商:Analog Devices 功能描述:IC VIDEO ENCODER |
| ADV7194KSTZ | 功能描述:IC ENCODER VIDEO EXT-10 80-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標準包裝:1 系列:- 類型:編碼器 應用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799 |
| ADV7194KSTZ | 制造商:Analog Devices 功能描述:TV / Video IC |
發(fā)布緊急采購，3分鐘左右您將得到回復。