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| 型号： | IBIS4-1300 |
| 厂商： | Cypress Semiconductor Corp. |
| 英文描述： | 1.3 MPxl Rolling Shutter CMOS Image Sensor |
| 中文描述： | 1.3 MPxl卷帘门的CMOS图像传感器 |
| 文件页数： | 27/37页 |
| 文件大小： | 1168K |
| 代理商： | IBIS4-1300 |
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IBIS4-1300
Document Number: 38-05707 Rev. *B
Page 27 of 37
Offset level adjustment
The offset level of the output signal is set by a 4-bit digital word.
The offset level voltage is selected between VLOW_DAC and
VHIGH_DAC on 16 taps.
"Double slope" or "High-dynamic range" mode
IBIS4-1300 has a feature to increase the dynamic range. The
pixel response can be extended over a larger range of light
intensities by using a "dual slope integration" (patents
pending). This is obtained by the addition of charge packets
from a long and a short integration time in the pixel during the
same frame time.
Figure 24. response curve of the pixels in dual slope integration
Fig.24 shows the response curve of a pixel in dual slope
integration mode. The curve also shows the response of the
same pixel in linear integration mode, with a long and short
integration time, at the same light levels.
Dual slope integration is obtained by
Feeding a lower supply voltage to VDD_RESETL. E.g.
apply 4 to 4.5 Volts. The difference between this voltage
and VDD determines the range of the high sensitivity, thus
the output signal level at which the transition between high
and low sensitivity occurs.
Put the amplifier gain to the lowest value where the analog
output swing covers the ADC's digital input swing.
Increasing the amplification too much will likely boost the
high sensitivity part over the whole ADC range.
The electronic shutter determines the ratio of integration
times of the two slopes. The high sensitivity ramp
corresponds to "no electronic shutter", thus maximal
integration time. The low sensitivity ramp corresponds to
the electronics shutter value that would have been obtained
in normal operation.
These
http://www.fillfactory.com/htm/technology/htm/dual-slope.htm
example
images
are
found
at
Figure 25. Linear long exposure time
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
0%
20%
40%
60%
80%
100%
Relative exposure (arbitrary scale)
O
Dual slope operation
Long integration time
Short integration time
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相关PDF资料 |
PDF描述 |
|---|---|
| IBIS4-1300-C1-2 | 1.3 MPxl Rolling Shutter CMOS Image Sensor |
| IBIS4-A-6600 | 6.6 MP CMOS Image Sensor |
| IBM0116160 | 1M x 16 12/8 DRAM(16M位 动态RAM（带20条地址线，其中12条为行地址选通，8条为列地址选通）) |
| IBM0116160B | 1M x 16 12/8 DRAM(16M位 动态RAM（带20条地址线，其中12条为行地址选通，8条为列地址选通）) |
| IBM0116160M | 1M x 16 12/8 DRAM(16M位 动态RAM（带20条地址线，其中12条为行地址选通，8条为列地址选通）) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IBIS4-1300_09 | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:1.3 MPxl Rolling Shutter CMOS Image Sensor |
| IBIS4-1300-C1-2 | 制造商:Cypress Semiconductor 功能描述:IMAGE SENSOR COLOR/MONOCHROME CMOS 1280X1024PIXELS 84PIN LCC - Bulk |
| IBIS4-1300-M-1 | 制造商:Cypress Semiconductor 功能描述:IMAGE SENSOR COLOR/MONOCHROME CMOS 1280X1024PIXELS 84PIN LCC - Bulk |
| IBIS4-1300-M-2 | 制造商:Cypress Semiconductor 功能描述:IMAGE SENSOR COLOR/MONOCHROME CMOS 1280X1024PIXELS 84PIN LCC - Bulk |
| IBIS4-14000-C | 制造商:Cypress Semiconductor 功能描述:Image Sensor Color CMOS 3048x4560Pixels 145-Pin PGA 制造商:Cypress Semiconductor 功能描述:IMAGE SENSOR MONOCHROME CMOS 3048X4560PIXELS 145PIN PGA - Bulk |
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