TH7887A Datasheet, PDF (16/21 Pages) ATMEL Corporation – Area Array CCD Image Sensor 1024 x 1024 Pixels with Antiblooming

Figure 15. Saturation Level Limitation by the Antiblooming Effect on the Pixel
3
Readout stage limit
2.5
Inefficient
antiblooming
2
Efficient
antiblooming
1.5
1
0.5
1.2 MHz
vertical transfer frequency
0
2
3
4
5
6
7
8
ΦA High Clock Level (Volts)
Figure 16. Smearing Effect
100
60 images / sec.
1.2 MHZ vertical tranfer frequency
80
Vertical smearing
Overillumination
60
100xEsat
40
a
20
10xEsat
Smearing level
0
0 1 2 3 4 5 6 7 8 9 10
Overilluminated Zone (% Image Height)
9
b
a,b signal line
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2146A–IMAGE–05/02