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參數(shù)資料
| 型號(hào)： | SDA9400 |
| 廠商： | MICRONAS SEMICONDUCTOR HOLDING AG |
| 英文描述： | Scan Rate Converter using Embedded DRAM Technology Units |
| 中文描述： | 掃描頻率轉(zhuǎn)換器采用嵌入式DRAM技術(shù)股 |
| 文件頁(yè)數(shù)： | 58/94頁(yè) |
| 文件大?。?/td> | 1180K |
| 代理商： | SDA9400 |
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SDA 9400
Micronas
58
Preliminary Data Sheet
toggled. If for example the status WINDHST/WINDVST=0 and the WINDHDR/WINDVDR=0 the
window is closed and will be open after enabling the feature by setting the parameter WINDHON/
WINDVON=1. To close the window only the parameter WINDHDR/WINDVDR has to be set to 1.
Again to open the window WINDHDR/WINDVDR has to be set to 0.
For example:
After switching on the TV set, the customer should see the window closed and afterwards the
window should be opened. Therefore the WINDHST/WINDVST has to be set to “0”, the WINDHDR/
WINDVDR has to be set to “1” and the WINDHON/WINDVON has to be set to “1”. So the customer
will see first a screen with a colour defined by the I2C parameters YBORDER, UBORDER and
VBORDER. Then the WINDHDR/WINDVDR has to be set to “0”, that means the window will be
open and the customer will see the chosen TV channel.
The speed of closing or opening the window can be defined by the parameter WINDHSP/
WINDVSP. The tables below explain the using of these parameters.
Output write parameter: WINDHSP
Distance: Number of pixels in system clocks X1/CLK2 between two output H-Syncs
time to close = time(field) * number of active pixels / (distance/512)
e.g. time to close = 10 ms * 720 / (864/512) = 4,26 s
time to close = time(field) * number of active pixels / (pplop/128)
Output write parameter: WINDVSP
windhsp
freerun
mode
locked
mode
time to close/
open (e.g. 720
active pixel,
10ms per output
field)
00
pplop/256
distance/512
~4s
01
pplop/128
distance/256
~2s
10
pplop/64
distance/128
~1s
11
pplop/32
distance/64
~0.5s
windvsp
freerun
mode
locked
mode
time to close/
open (e.g. 576
active lines,
10ms per output
field)
00
lpfop/128
lpfip/256
~5s
01
lpfop/64
lpfip/128
~2s
10
lpfop/32
lpfip/64
~1s
11
lpfop/16
lpfip/32
~0.5s
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