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参数资料
| 型号： | NOIL1SM0300A-WWC |
| 厂商： | ON Semiconductor |
| 文件页数： | 7/30页 |
| 文件大小： | 0K |
| 描述： | IC IMAGE SENSOR LUPA300 48LLC |
| 标准包装： | 1 |
| 系列： | LUPA300 |
| 象素大小： | 9.9µm x 9.9µm |
| 有源象素阵列： | 640H x 480V |
| 每秒帧数： | 250 |
| 电源电压： | 2.5 V，3.3 V |
| 类型： | CMOS 成像 |
| 封装/外壳： | 48-LCC |
| 供应商设备封装： | 48-LCC（14.22x14.22） |
| 包装： | 托盘 |
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NOIL1SM0300A
50ns
CLK_ADC
ADC_IN
D1
D2
D3
D4
D5
D6
D7
D8
ADC_OUT
DUMMY
D1
D2
D3
D4
<9:0>
5.5 clock cycles
3.7ns
Figure 6. ADC Timing
Programmable Gain Amplifiers
The programmable gain amplifiers have two functions:
? Adding an offset to the signal to fit it into the range of
the ADC. This is controlled by the VBLACK and
VOFFSET SPI settings.
? Amplifying the signal after the offset is added.
Offset Regulation
The purpose of offset regulation is to bring the signal in
the input range of the ADC.
After the column amplifiers, the signal from the pixels has
a range from 0.1V (bright) to 1.3V (black). The input range
Consider as an example that the device has a black level of
1.45V and a swing of 100 mV. With this swing, it fits in the
input range of the ADC, but a large part of the range of the
ADC is not used in this case. For this reason an offset is
added first, to align the black level with the input range of the
ADC. In the first step, an offset of 200 mV is added with the
default settings of VBLACK and VOFFSET. This results in
the red histogram with a average black level of 1.65V. This
means that the spread on the black level falls completely
inside the range of the ADC. In a second step, the signal is
amplified to use the full range of the ADC.
of the ADC is from 0.75V to 1.75V. The amount of offset
added is controlled by two SPI settings: VBLACK<7:0> and
VOFFSET<7:0>. The formula to add offset is:
Voutput = Vsignal + (Voffset - Vblack)
Note that the FPN (fixed pattern noise) of the sensor
causes a spread of about 100 mV on the dark level. To allow
FPN correction during post processing of the image, this
spread on the dark level needs to be covered by the input
range of the ADC. This is why the default settings of the SPI
are programmed to add an offset of 200 mV. This way the
dark level goes from 1.3V to 1.5V and is the FPN
information still converted by the ADC. To match the ADC
range, it is recommended to program an offset of 340 mV. To
program this offset, the Voffset and Vblack registers can be
1.45V
1.65V
1.75V
VADC_HIGH
used. Figure 7 illustrates the operation of the offset
regulation with an example. The blue histogram is the
histogram of the image taken after the column amplifiers.
http://onsemi.com
7
Figure 7. Offset Regulation
Volts
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相关代理商/技术参数 |
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| NOIL1SM1300AWES | 制造商:ON Semiconductor 功能描述:PW/H |
| NOIL1SM4000A | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:LUPA4000: 4 MegaPixel High Speed CMOS Sensor |
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| NOIL1SN3000A-GDC | 功能描述:IC IMAGE SENSOR LUPA3000 369PGA RoHS:是 类别:传感器，转换器 >> 图像，相机 系列:* 标准包装:480 系列:- 象素大小:6.7µm x 6.7µm 有源象素阵列:768H x 488V 每秒帧数:52 电源电压:3.3V 类型:CMOS 成像 封装/外壳:48-QFP 供应商设备封装:48-QFP 包装:托盘 请注意:* 配用:4H2105-ND - HEADBOARD FOR KAC-004014H2104-ND - KIT EVAL FOR KAC-00401 其它名称:4H20954H2095-NDKAC-00401-CBC-LB-A0 |
| NOIL2SC1300A-GDC | 功能描述:图像传感器和彩色传感器 LUPA1300-2 COLOR PGA168 RoHS:否 制造商:Avago Technologies 类型:Color Sensors 工作电源电压:2.5 V 封装 / 箱体: 图象大小: 颜色读出:Color 最大工作温度:+ 70 C 最小工作温度:- 25 C 封装:Reel |
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