- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374047 > ADV7320 (Analog Devices, Inc.) Multiformat 216 MHz Video Encoder with Six NSV 12-Bit DACs PDF資料下載
參數(shù)資料
| 型號： | ADV7320 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Multiformat 216 MHz Video Encoder with Six NSV 12-Bit DACs |
| 中文描述： | 多格式視頻編碼器216兆赫六噪聲整形的12位DAC |
| 文件頁數(shù)： | 58/88頁 |
| 文件大?。?/td> | 1002K |
| 代理商： | ADV7320 |
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頁當(dāng)前第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頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁
ADV7320/ADV7321
Rev. 0 | Page 58 of 88
BLOCK SIZE CONTROL
BORDER AREA
BLOCK OFFSET
CORING GAIN DATA
CORING GAIN BORDER
GAIN
DNR CONTROL
FILTER
OUTPUT
>
THRESHOLD
INPUT FILTER
BLOCK
FILTER OUTPUT
<
THRESHOLD
DNR OUT
+
+
MAIN SIGNAL PATH
ADD SIGNAL
ABOVE
THRESHOLD
RANGE FROM
ORIGINAL SIGNAL
DNR
SHARPNESS
MODE
NOISE
SIGNAL PATH
Y DATA
INPUT
BLOCK SIZE CONTROL
BORDER AREA
BLOCK OFFSET
CORING GAIN DATA
CORING GAIN BORDER
GAIN
DNR CONTROL
FILTER
OUTPUT
<
THRESHOLD
INPUT FILTER
BLOCK
FILTER OUTPUT
THRESHOLD
DNR OUT
MAIN SIGNAL PATH
SUBTRACT SIGNAL
IN THRESHOLD
RANGE FROM
ORIGINAL SIGNAL
DNR MODE
NOISE
SIGNAL PATH
Y DATA
INPUT
–
+
0
Figure 78. DNR Block Diagram
CORING GAIN BORDER
[Address 0x63, Bits 3 to 0]
These four bits are assigned to the gain factor applied to border
areas. In DNR mode, the range of gain values is 0 to 1 in
increments of 1/8. This factor is applied to the DNR filter
output, which lies below the set threshold range. The result is
then subtracted from the original signal.
In DNR sharpness mode, the range of gain values is 0 to 0.5 in
increments of 1/16. This factor is applied to the DNR filter
output, which lies above the threshold range. The result is
added to the original signal.
CORING GAIN DATA
[Address 0x63, Bits 7 to 4]
These four bits are assigned to the gain factor applied to the luma
data inside the MPEG pixel block. In DNR mode, the range of
gain values is 0 to 1 in increments of 1/8. This factor is applied
to the DNR filter output, which lies below the set threshold
range. The result is then subtracted from the original signal.
In DNR sharpness mode, the range of gain values is 0 to 0.5 in
increments of 1/16. This factor is applied to the DNR filter
output, which lies above the threshold range. The result is
added to the original signal.
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
O X X X X X X O O X X X X X X O
DNR27 – DNR24 = 0x01
OFFSET CAUSED
BY VARIATIONS IN
INPUT TIMING
APPLY BORDER
CORING GAIN
APPLY DATA
CORING GAIN
0
Figure 79. DNR Offset Control
DNR THRESHOLD
[Address 0x64, Bits 5 to 0]
These six bits are used to define the threshold value in the range
of 0 to 63. The range is an absolute value.
BORDER AREA
[Address 0x64, Bit 6]
When this bit is set to Logic 1, the block transition area can be
defined to consist of four pixels. If this bit is set to Logic 0, the
border transition area consists of two pixels, where one pixel
refers to two clock cycles at 27 MHz.
720
×
485 PIXELS
(NTSC)
8
×
8 PIXEL BLOCK
2-PIXEL
BORDER
DATA
8
×
8 PIXEL BLOCK
0
Figure 80. DNR Border Area
BLOCK SIZE CONTROL
[Address 0x64, Bit 7]
This bit is used to select the size of the data blocks to be
processed. Setting the block size control function to Logic 1
defines a 16 pixel × 16 pixel data block, and Logic 0 defines an
8 pixel × 8 pixel data block, where one pixel refers to two clock
cycles at 27 MHz.
DNR INPUT SELECT CONTROL
[Address 0x65, Bits 2 to 0]
Three bits are assigned to select the filter, which is applied to the
incoming Y data. The signal that lies in the pass band of the
selected filter is the signal that will be DNR processed. Figure 81
shows the filter responses selectable with this control.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADV7321 | Multiformat 216 MHz Video Encoder with Six NSV 12-Bit DACs |
| ADV7321KSTZ | Multiformat 216 MHz Video Encoder with Six NSV 12-Bit DACs |
| ADV7324 | Multiformat 216 MHz Video Encoder with Six NSV 14-Bit DACs |
| ADV7324KSTZ | Multiformat 216 MHz Video Encoder with Six NSV 14-Bit DACs |
| ADV7340 | Multiformat Video Encoder, Six 12-Bit Noise Shaped Video㈢ DACS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADV73205705 | 制造商:LG Corporation 功能描述:Frame Assembly |
| ADV73205706 | 制造商:LG Corporation 功能描述:Frame Assembly |
| ADV73205753 | 制造商:LG Corporation 功能描述:Frame Assembly |
| ADV73207202 | 制造商:LG Corporation 功能描述:Frame Assembly,Door |
| ADV73207203 | 制造商:LG Corporation 功能描述:FRAME ASSEMBLY,DOOR |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。