TH7834C Datasheet, PDF (12/13 Pages) ATMEL Corporation – Very Highresolution Linear CCD Image Sensor (12000 Pixels)

Table 7. Exposure Time Reduction Conditions
Parameter
Antiblooming Diode Bias
Antiblooming And Expose Time
Control
Period 1
Period 2
Symbol
VA_1-2. VA_3-4
Φ_A1-2, Φ_A3-4
Min.
14
9.5
Figure 8. Timing Diagram For Exposure Time Control
ΦP(1-2, 3,4)
ΦA(1-2, 3,4) _Antiblooming
0V
level
Clear period
Period 2
≥TR
Value
Typ.
15.5
to be adjusted
10
Period 1
integration time ti
Note: It is better to have Φ_A falling/rising edge outside the useful readout period.
Outline Drawing
PIXEL 1 MARK
Max.
Unit
15
V
V
10.5
V
∆t ≥ 20ns
TR = Readout period
1
3.2 4.2
9.71 ± 0.6
68.58 ± 0.25
(2.54 × 27)
88.0 ±0.88.
15.24 ±0.25
3
2
Z=1.80±0.30
Y
X
5.00 ± 0.10
1st pixel
pixel 12000
|Y12000-Y1| ≤ 150 µm
Note:
Antireflective window: reflection.
Less than 1% per side over 400 - 700 nm wavelength range.
All dimensions are in mm (except otherwise specified).
Ordering Code
The ordering code is TH7834CCC-RB
12 TH7834C
1 Window
2 Photosensitive area
3 Optical distance between
external face of window
and photosensitive area
1997A–IMAGE–05/02