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PDF TCD2558D Data sheet ( Hoja de datos )
| Número de pieza | TCD2558D | |
| Descripción | CCD Linear Image Sensor | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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TCD2558D
Preliminary TOSHIBA CCD Linear Image Sensor CCD (charge coupled device)
TCD2558D
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The TCD2558D is a high sensitive and low dark current 5340
elements × 3 line CCD color image sensor which includes CCD
drive circuit, clamp circuit.
The sensor can be used for image scanner. The device contains
a row of 5340 × 3 photodiodes, which provide a 24 lines/mm (600
dpi) across a A4 size paper. The divice is operated by 5 V (pulse),
and 12 V power supply.
Features
· Number of image sensing elements: 5340 elements × 3 line
· Image sensing element size: 7 µm by 7 µm on 7 µm centers
· Photo sensing region: High sensitive and low dark current PN
photodiode
· Distance between photodiode array: 28 µm, 4 line
· Clock: 2 phase (5 V)
· Power supply: 12 V power supply voltage
· Internal circuit: Clamp circuit
· Package: 22 pin CERDIP package
· Color filter: Red, green, blue
Pin Assignment (top view)
Weight: 5.2 g (typ.)
1 2002-12-25
1 page  
TCD2558D
Note 10: Random noise is defined as the standard deviation (sigma) of the output level difference between two
adjacent effective pixels under no illumination (i.e. dark conditions) calculated by the following procedure.
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1) Two adjacent pixels (pixel n and n + 1) in one reading are fixed as measurement points.
2) Each of the output level at video output periods averaged over 200 ns period to get V (n) and V (n +
1).
3) V (n + 1) is subtracted from V (n) to get DV.
DV = V (n) - V (n + 1)
4) The standard deviation of DV is calculated after procedure 2) and 3) are repeated 30 times (30
readings).
DV =
1
30
å
| DVi |
30 i = 1
s=
1
30
å
(|
DVi
|
-
DV
)2
30 i = 1
5) Procedure 2), 3) and 4) are repeated 10 times to get sigma value.
6) 10 sigma values are averaged.
s=
1
10
å
sj
10 j = 1
7) I value calculated using the above procedure is observed 2 times larger than that measured
relative to the ground level. So we specify random noise as follows.
NDs = 1 s
2
Operating Condition
Characteristics
Symbol
Min Typ. Max Unit
Clock pulse voltage
Shift pulse voltage
Reset pulse voltage
Clamp pulse voltage
Power supply voltage
“H” level
“L” level
“H” level
“L” level
“H” level
“L” level
“H” level
“L” level
VfA
VSH
VRS
VCP
VOD
4.5
0.0
VfA
“H”
- 0.5
0.0
4.5
0.0
4.5
0.0
11.4
5.0
¾
VfA
“H”
¾
5.0
¾
5.0
¾
12.0
5.5
0.5
VfA
“H”
0.5
5.5
0.5
5.5
0.5
13.0
V
V
V
V
V
Note 11: VfA “H” means the high level voltage of VfA when SH pulse is high level.
Note
(Note 11)
5 2002-12-25
5 Page 
Typical Spectral Response
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TCD2558D
11 2002-12-25
11 Page | ||
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| PDF Descargar | [ Datasheet TCD2558D.PDF ] | |
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