參數(shù)資料
型號(hào)： VV5410
廠商： 意法半導(dǎo)體
英文描述： Mono and Colour Digital Video CMOS Image Sensors
中文描述： 莫諾和數(shù)字視頻彩色CMOS圖像傳感器
文件頁(yè)數(shù)： 16/105頁(yè)
文件大?。?/td> 489K
代理商： VV5410
VV5410 & VV6410
Operating Modes
cd5410-6410f-3-0.fm
Commercial in confidence
16/105
3.4
VV5410/VV6410 has two QCIF output modes, pan/tilt QCIF (ptQCIF) and sub sampled QCIF (ssQCIF), both of which have the
same output format. The data contained within the active QCIF image differs between the sub sampled and pan tilt modes. As
the QCIF mode contains a quarter of the data of the CIF mode, the effective pixel clock can be run at a quarter of the rate. This
means that in CIF mode a system clock of 16MHz will produce a field rate of 30fps, whereas in QCIF mode a system clock of only
8MHz is required to produce the same field rate. Note that the sensor divides the system clock internally by 4 for CIF mode and 8
for QCIF mode. If the user supplied the sensor with a 16Mhz system clock and selected QCIF mode then a field rate of 60fps is
possible.
QCIF Output Modes
3.4.1
In this mode the QCIF image is generated by outputting a cropped portion of the CIF image as illustrated in Figure 9. When the
pan-tilt QCIF video mode is initially selected the image will be horizontally and vertically justified in the within the full size array
(364 pixels by 292 pixels). The coordinates which define the top left corner of the QCIF portion of the array to be output are
defined by the x-offset & y-offset parameters in serial registers [88 - 91] inclusive.
Pan/Tilt QCIF
The x-offset and y-offset parameters are subject to minimum and maximum values which are set according to the video output
mode (horizontal shuffle etc). Any clipping (against a maximum) or clamping (against a minimum) will be automatically controlled
by the sensor logic. Regardless of whether any of the shuffle/mirror modes have been selected the user should always identify
the top left corner coordinates as the x-offset and y-offset. To preserve the Bayer pattern at the sensor output the first pixel image
of the image should always be green followed by red. If the x or y offsets are adjusted by a single step, i.e. adjust the x-offset from
n to n+1, then this pattern will be corrupted. The user should always write an
odd
number to the x and y offset registers and this
will preserve the Bayer pattern. The 5410, monochrome sensor is unaffected by such an adjustment to the x-offset coordinate, as
the pixels do not contain any colour information.
Figure 9 : Pan/Tilt QCIF Image Format
180 pixels
1
y-offset
x-offset
364 pixels
QCIF Image
相關(guān)PDF資料
PDF描述
VV5430C001 Monochrome Analog Output CMOS Image Sensors
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VV6410C036 DUAL-MODE DIGITAL CAMERA CHIPSET
VV6410 XTAL MTL T/H HC49/US
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
VV5410C036 制造商:STMicroelectronics 功能描述:IMAGE SENSOR MONOCHROME CMOS 352X288PIXELS 36CLCC - Bulk
VV5430 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Integrated CMOS Image Sensor with support for ADC and external control via serial interface
VV5430C001 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Monochrome Analog Output CMOS Image Sensors
VV5501C001 功能描述:視頻 IC Monochrome Sensor RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
VV5F3-30-041 制造商:SMC Corporation of America 功能描述:Manifold Base for VF series, base mt, 1/4 inch
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