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參數(shù)資料
| 型號(hào)： | AMIS-720341 |
| 英文描述： | Contact Image Sensor |
| 中文描述： | 接觸式圖像傳感器 |
| 文件頁數(shù)： | 5/16頁 |
| 文件大?。?/td> | 1038K |
| 代理商： | AMIS-720341 |
AMIS-720341-A:
Contact Image Sensor
Data Sheet
5.0 Signal Conversion Circuit
Figure 5 is an example of the charge conversion that is used in the CIS modules. It is usually bonded on the same PCB on which the
image sensors are bonded. In applications where cost is an important factor, this simple circuit provides the cleanest technique in
processing the video output. It integrates all the currents from each pixel element onto a capacitor (CAP). It also sums the energy of the
switch edge along with the signal current pulses, minimizing the switching patterns on the video pixels. The summed charges stored on
the CAP produce a pixel voltage. This voltage amplitude is proportional to the charge from the current pulse and the value of the CAP.
Figure 5: Video Output Test and Application Circuit
Since switching energies are components with high frequencies, they tend to integrate to a 0 value and the remainder adds a constant
value to offset the dark level. After the pixel is integrated, the CAP is reset to 0V by activating the shunt switch, SW, that connects the
video line to ground prior to accessing the following pixel element. Figure 6, which depicts a typical pixel voltage waveform, shows that
the shunt time is controlled with CP. SW activation and the reset to the dark reference level of the pixel element storage occur
simultaneously, initializing the pixel for its integration process cycle. The signal pixels Vp(n) is referenced to its dark level as seen in
Figure 6.
Figure 6: Single Pixel Video Output
5
AMI Semiconductor
– May 06, M-20570-001
www.amis.com
相關(guān)PDF資料 |
PDF描述 |
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| AMIS-720341-A | Contact Image Sensor |
| AMIS-720442 | 400dpi Contact Image Sensor |
| AMIS-720442-A | 400dpi Contact Image Sensor |
| AMIS-720639 | 600dpi CIS Sensor Chip |
| AMIS-720649 | Contact Image Sensor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AMIS-720341-A | 制造商:AMI 制造商全稱:AMI 功能描述:Contact Image Sensor |
| AMIS-720442 | 制造商:AMI 制造商全稱:AMI 功能描述:400dpi Contact Image Sensor |
| AMIS-720442-A | 制造商:AMI 制造商全稱:AMI 功能描述:400dpi Contact Image Sensor |
| AMIS-720639 | 制造商:AMI 制造商全稱:AMI 功能描述:600dpi CIS Sensor Chip |
| AMIS-720649 | 制造商:AMI 制造商全稱:AMI 功能描述:Contact Image Sensor |
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