LUPA-1300 Datasheet, PDF (46/48 Pages) Cypress Semiconductor – 1.3 M Pixel High Speed CMOS Image Sensor

LUPA-1300
Datasheet
values, no signal will be acquired without double slope. When double slope is enabled
a second reset pulse will be given (blue line) at a certain time before the end of the
integration time. This double slope reset pulse resets the analog signal of the pixels
BELOW this level to the reset level. After the reset the analog signal starts to
decrease with the same slope as before the double slope reset pulse. If the double
slope reset pulse is placed at the end of the integration time (90% for instance) the
analog signal that would have reach the saturation levels aren't saturated anymore
(this increases the optical dynamic range) at read out. It's important to notice
that pixel signals above the double slope reset level will not be influenced by this
double slope reset pulse (p1 and p2).
Please look at our website to find some pictures taken with the double slope mode
on: http://www.fillfactory.be/htm/technology/htm/dual-slope.htm
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Contact [e-mail] Document # : 38-05711 Rev.**( Revision 3.1) Page 46 of 48