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参数资料
| 型号： | YGV619 |
| 厂商： | LSI Corporation |
| 英文描述： | Advanced Video Display Processor 6 |
| 中文描述： | 先进的视频显示处理器6 |
| 文件页数： | 5/15页 |
| 文件大小： | 337K |
| 代理商： | YGV619 |
YGV619
13
OSD of HDTV digital image
AVDP6
CPU
RAM
ROM
MPEG2
decoder
YCbCr 16bit
SDRAM
74MHz
YCbCr 16bit
This is an example of the system configuration that uses AVDP6 as OSD image display device in HDTV.
Since the device is able to input / output YCbCr422 data at the frequency up to 80 MHz, it is possible to
control OSD for video signal of HDTV (1125i). In this case, The frequency of dot clock of OSD image
becomes up to 40 MHz (the resolution equivalent to color difference data).
(As the 74 MHz dot clock, it is necessary to input clock that synchronizes with external video signal.)
OSD of NTSC analog image
AVDP6
CPU
RAM
ROM
HSYNC,VSYNC
SDRAM
14MHz
analog
RGB
analog
switch
YS (AT0)
analog RGB
analog input
analog
RGB
When the external video is analog signal, switching signal for analog switch can be outputted together with
OSD display data. Since the dot clock that synchronizes with sync signal of external video can be regenerated
by using the built-in PLL, the superimposing function can be realized easily also for analog image signal.
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