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Datasheet: IA2008-MB20A (Rohm)

Monochrome Image Sensor Head

 

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Rohm

Document Outline

IA2008-MB20A
Contact image sensor heads
Monochrome image sensor head
(8pixel / mm)
IA2008-MB20A
The IA2008-MB20A is a state-of-the-art compact, lightweight A4-size monochrome image sensor head that resulted from
the combination of ROHM's LSI circuit technology and thermal printhead mounting technology.
Applications
Facsimiles
Image scanning devices
Features
1) The amplifiers, resistors, capacitors, and other discrete components that were normally externally attached, are built
into the sensor IC.
2) Compact body and lightweight achieved by the placement of the LED light source and sensor IC on the same board.
3) Uses a special ROHM developed prism that provides superior light gathering characteristics and uniform light
dispersion.
4) Uses a ceramic board as the base board for minimal temperature fluctuations and uniform thermal dispersion.
5) This is excellent in the point of
(gamma) characteristics, and it realizes clear gradation. (Exceptionally clear print
quality is given by all bits conpensation in the both case of dark output and white output.)
External dimensions (Units : mm)
(6)
Paper Feed
Direction
No.1 Pixel
PIN No.
No.1
No.2
No.3
No.4
No.5
No.6
No.7
SIGNAL
Ao
GND
V
DD
SI
CLK
GLED
VLED
(13.8)
(25)
A
(133)
2320.5
(49.5)
(0.16)
(10.4)
(1.41)
No.7
No.1
17.50.3
13
0.3
2.250.2
5.50.5
4-
1.9
Effective
Depth7
216 (Effective Reading Width : 212)
3.750.5
Max.2 11.180.3
10.50.5
Notes :
1. Curvature of glass surface : With the A-direction positive, 0 to 0.22 with
respect to the cover glass.
2. The frame material is UL94V-0.
(Connecter part number)
Socket Housing : IL-Z-7S-S125C3 (JAE)
Socket Contact : IL-Z-C3-A-15000 (JAE)
IA2008-MB20A
Contact image sensor heads
Characteristics
Parameter
Effective scanning width
V
DD
-
-
-
-
SLT
CLK
VRmax
212
8
1728
5
5
500
1.6
550
5
~
45
mm
pixel / mm
dots
V
ms / line
kHz
V
mV
Primary scan dot density
Total dot number
Power supply voltage
Scanning speed
Clock frequency
Maximum dynamic range
Dark output
Operating temperature
Symbol
Typ.
Unit
Vodmax
C
Pin assignments
Functions
Analog output
Ground
Clock
Power supply
Serial-in
LED power supply
LED ground
No.
1
A
O
GND
CLK
V
DD
SI
GLED
VLED
2
3
4
5
6
7
Circuit
I / O
O
I
I
I
I
I
I
IA2008-MB20A
Contact image sensor heads
Timing chart
(a) CLK Timing Chart
ts
tHOLD
tSETUP
tw1
1/fCLK
CLK
tw2
0
1
11
12
13
SI
Ao
1pixel
2pixel
Fig.1
(b) Data Output Timing Chart
After turning on the SI pulse, the analog output shape starts from the setting up point of 12CLK pulse.
CLK
0
Note) The CLK section area which is over the effective pixel numbers
(Output blank part) cannot be used as the analog Output standard level.
2
4
6
8
1
2
3
4
5
10
12
14
16
SI
Ao
IA2008-MB20A
Contact image sensor heads
Equivalent circuit
V
DD
0.1
F
2
GND
A
O
SI
CLK
V
LED
G
LED
1728 BIT SHIFT REGISTER
1728
1
Fig.2
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