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Figure 15, Ure 15), Th7887a – Rainbow Electronics TH7887A User Manual

Page 16

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16

TH7887A

2146A–IMAGE–05/02

Figure 15. Saturation Level Limitation by the Antiblooming Effect on the Pixel

Figure 16. Smearing Effect

0

2

3

4

5

6

ΦA High Clock Level (Volts)

Saturation Output Level (Volts)

7

8

9

1

0.5

1.5

2

2.5

3

Readout stage limit

Inefficient

antiblooming

Efficient

antiblooming

1.2 MHz

vertical transfer frequency

0

0

1

2

3

4

5

6

Overilluminated Zone (% Image Height)

Smearing/Vsat (%)

7

8

9

10

40

20

60

80

100

60 images / sec.

1.2 MHZ vertical tranfer frequency

100xEsat

a

Smearing level

a,b signal line

Vertical smearing

Overillumination

b

10xEsat