VV5801B001 查看數據表（PDF） - Vision

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VV5801B001

High resolution CMOS 1300K Pixel Image Sensor with support for external FPN cancellation and serial interface control, available in colour (VV6801) and monochrome (VV5801) versions.

Vision 

VISION VV6801/5801 PRELIMINARY CUSTOMER DATASHEET Rev 1.1

exposure time as the array.

4. Permanent integration; the reference lines continue to integrate until reset as in 1.

2.9.1 Permanent Reset

This is the most stable as it does not depend on either the quality of the black shield above the black pixels

or any light incident on the pixels. However it is also the least accurate as it does not allow for dark current

or the breakthrough of the falling edge of the pixel reset signal onto the pixel capacitance. The resulting

reference value will be ‘blacker’ than black due to the above errors.

2.9.2 Minimum Integration

This is more accurate than Permanent Reset, as the effect of the pixel reset signal breakthrough is included,

but the effect of total dark current is not included since the black reference pixels are not integrating for the

same time as the image section of the pixel array. The reference is, also, now sensitive to the effects of light

y reaching the black line pixels.

r 2.9.3 Integration

a This includes the effect of dark current since the black reference pixels are integrating for the same time as

the image section of the pixel array. The validity of the reference is, however, now even more sensitive to the

in effects of light reaching the pixel.

2.9.4 Permanent integration

This, in combination with Permanent Reset, allows the exposure time for the black reference lines to be

controlled independently of the exposure of the rest of the image.

lim Note: For best results, it is recommended that the average of the four central lines of the black reference line

Pre group is used to characterise ‘Black’ for the frame.

VISION VV6801/5801 PRELIMINARY CUSTOMER DATASHEET Rev 1.1

3. Exposure Control

Exposure control is achieved either electronically by varying the FI pulse duration, or directly by means of a

shutter arrangement (mechanical, electro-mechanical, electro-optical, and so on). The correct exposure level

for any scene can be assessed by processing a ‘trial exposure’ of the scene, or by utilising the ‘Accumulate’

or ‘Parallel Integration’ operating mode. See Section 5. for a full description of exposure control.

Preliminary

cd24082b.fm

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cd24082b.fm

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