參數(shù)資料
型號： ADV7194KSTZ
廠商： Analog Devices Inc
文件頁數(shù)： 37/69頁
文件大?。?/td> 0K
描述： IC ENCODER VIDEO EXT-10 80-LQFP
標(biāo)準(zhǔn)包裝： 1
類型： 視頻編碼器
應(yīng)用： DVD，視頻，多媒體
電壓 - 電源，模擬： 3.3 V ~ 5 V
電壓 - 電源，數(shù)字： 3.3 V ~ 5 V
安裝類型： 表面貼裝
封裝/外殼： 80-LQFP
供應(yīng)商設(shè)備封裝： 80-LQFP（14x14）
包裝： 托盤
產(chǎn)品目錄頁面： 788 (CN2011-ZH PDF)
ADV7194
–42–
REV. A
DNR17
DNR16
DNR15
DNR14
DNR13
DNR12
DNR11
DNR10
DNR THRESHOLD
DNR DNR DNR DNR DNR DNR
15
14
13
12
11
10
0
0000
0
1
1111
1
0
62
1111
1
63
0
2 PIXELS
1
4 PIXELS
DNR16
BORDER AREA
0
8 PIXELS
1
16 PIXELS
DNR17
BLOCK SIZE
CONTROL
Figure 86. DNR Register 1
DNR2 BIT DESCRIPTION
DNR Input Select (DNR20–DNR22)
Three bits are assigned to select the lter which is applied to the
incoming Y data. The signal which lies in the passband of the
selected lter is the signal which will be DNR processed. Figure 87
shows the 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 dening 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
01
MAGNITUDE
–
dB
234
6
5
0.8
0
FILTER D
FILTER C
FILTER B
FILTER A
Figure 87. 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 88. 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 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.
OXXXXXXO OXXXXXXO
APPLY BORDER
CORING GAIN
DNR27-DNR24
= 01HEX
OFFSET CAUSED BY
VARIATIONS IN INPUT
TIMING
OXXXXXXO OXXXXXXO
APPLY DATA
CORING GAIN
Figure 89.
相關(guān)PDF資料
PDF描述
ADV7202KSTZ IC CODEC VIDEO 10BIT 64LQFP
ADV7311KST IC VID ENC 6-12BIT DAC'S 64LQFP
ADV7321KSTZ IC VID ENC 6-12BIT DAC'S 64LQFP
ADV7343BSTZ IC ENCODER VIDEO W/DAC 64-LQFP
ADV7391BCPZ IC ENCODER VIDEO W/DAC 32LFCSP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADV7194KSTZ 制造商:Analog Devices 功能描述:TV / Video IC
ADV7195 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat Progressive Scan/HDTV Encoder with Three 11-Bit DACs and 10-Bit Data Input
ADV7195KS 制造商:Analog Devices 功能描述:Video Encoder 3DAC 11-Bit 52-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:MULTI-FORMAT VID+PROGSCAN/HDTV ENCODERIC - Bulk
ADV7195KST 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat Progressive Scan/HDTV Encoder with Three 11-Bit DACs and 10-Bit Data Input
ADV7195KSZ 制造商:Analog Devices 功能描述:Video Encoder 3DAC 11-Bit 52-Pin MQFP
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*