ROHM IA1208

IA1208-FE10A
Contact image sensor heads
Color image sensor heads for High-speed
Scanner
IA1208-FE10A
Contact Image Sensor Head with 3 times higher scanning speed due to 3ch outputs.
Newly developed resolution change-over IC is employed which has improved noise resistance.
zApplications
High speed reading equipment (i.e. document scanners, plotters, laser multifunction devices).
zFeatures
1) High speed reading capability due to 3 analog output.
2) Signal amplifier is built into the image sensor IC in order to increase immunity to external noise.
3) ROHM’s newly developed sensor IC reduces failures due to ESD (based on the IEC61000-4-2 standard).
4) With the proprietary prism, the output signal is maintained uniformly.
5) The ceramic substrate is used for excellent dimensional accuracy and thermal stability.
zExternal dimensions (Unit : mm)
236 ±0.5
2-φ1.5×2
Oval Hole D4MIN
216 (Effective Reading Width)
Effective 1st bit
9.4
0.324±0.1
17.5
14 ±0.2
Scanning Line
2-φ1.5 D4MIN
15
2- 3 +0/-0.1
2.0±0.8
MAX.3.15
6.9
1mm Pitch 15pin
max.1
max.1
max.1
max.1
6.9
No.15
No.1
Center of FCC
13.8
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IA1208-FE10A
Contact image sensor heads
zCharacteristics
Parameter
Symbol
Typ.
Unit
Effective scanning width
−
216
mm
Primary scan dot density
−
1200
dpi
−
10368
dots
Power supply voltage
VDD
3.3
V
Reference voltage
VREF
0.8
V
Scanning speed
SLT
3.0
ms / line
Total dot number
CLK
5
MHz
Maximum dynamic range
VRMax
0.5
V
Minimum dynamic range
VRMin.
0.25
V
Vod
VREF +
− 0.1
V
−
5 to 45
°C
Clock frequency
Dark output
Operating temperature
zPin assignments
No.
Circuit
I/O
1
AO3
O
Analog output
Function
2
GND
I
Ground
3
AO2
O
Analog output
4
GND
I
Ground
5
AO1
O
Analog output
6
MODE
I
Mode select
7
GND
I
Ground
8
VDD
I
Power supply
9
VREF
I
Reference voltage
10
SP
I
Start pulse
11
CLK
I
Clock
12
V-LED
I
LED power supply
13
B-GND
I
BLUE LED ground
14
G-GND
I
GREEN LED ground
15
R-GND
I
RED LED ground
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IA1208-FE10A
Contact image sensor heads
zTiming chart
(a) CLK Timing Chart
1/fCLK
twH
twL
CLK
50%
50%
SP
tSETUP tHOLD
ts
Ao
1pixel
2pixel
(b-1) Data Output Timing Chart (1200dpi mode)
After turning on the SP pulse, the analog output starts from the setting up point of 82 clock pulse.
1200dpi mode
1
2
82
CLK
SP
A O1 to 3
VREF output period
A O1 :
A O2 :
A O3 :
1 to 82clock
1 to 82clock
1 to 82clock
Vdummy
Analog output period
1 to 100pixels
−
−
101 to 3456pixels
3457 to 6912pixels
6913 to 10312pixels
Vdummy
−
−
10313 to 10368pixels
Note)The CLK section area which is over the effective pixel numbers
(Output blank part) cannot be used as the analog Output
standard level.
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IA1208-FE10A
Contact image sensor heads
(b-2) Data Output Timing Chart (600dpi mode)
After turning on the SP pulse, the analog output starts from the setting up point of 82 clock pulse.
600dpi mode
1
2
82
CLK
SP
A O1 to 3
VREF output period
A O1 :
A O2 :
A O3 :
1 to 82clock
1 to 82clock
1 to 82clock
Vdummy
Analog output period
Vdummy
1 to 50pixels
−
−
51 to 1728pixels
1729 to 3456pixels
3457 to 5156pixels
−
−
5157 to 5184pixels
Note)The CLK section area which is over the effective pixel numbers
(Output blank part) cannot be used as the analog Output
standard level.
(b-3) Data Output Timing Chart (300dpi mode)
After turning on the SP pulse, the analog output starts from the setting up point of 82 clock pulse.
300dpi mode
1
2
82
CLK
SP
A O1 to 3
VREF output period
A O1 :
A O2 :
A O3 :
1 to 82clock
1 to 82clock
1 to 82clock
Vdummy
Analog output period
Vdummy
1 to 25pixels
−
−
26 to 864pixels
865 to 1728pixels
1729 to 2578pixels
−
−
2579 to 2592pixels
Note)The CLK section area which is over the effective pixel numbers
(Output blank part) cannot be used as the analog Output
standard level.
4/5
IA1208-FE10A
Contact image sensor heads
zCircuit diagram
VDD
1µF×6
GND
1
10368
VDD
SP
VREF
ANALOG MEMORY CIRCUIT
CLK
MODE
3456
1
3457
6912
6913
10368
AO1
AO2
AO3
MODE
VREF
VLED
RGND
GGND
BGND
zPeripheral circuit
IMAGE SENSOR UNIT
13
14
15
12
1
3
5
9
8
10
11
R3
2, 4, 7
6
GND
MODE
C5
R3
R1
R2
B
G
R
R3
C1
A 3
C3
A 2
A 1
VDD
SP
CLK
C2
LED GND
C4
VLED
VREF
R1=R2=100Ω, R3=100KΩ
C1=C2=47µF
C3=100µF, C4=0.1µF, C5=100pF
5/5
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.1