Rohm LSH2004-AA10A Contact image sensor heads for narrow-width scanner Datasheet

Contact Image Sensor Heads for narrow-width scanners
LSH2004-AA10A
Equipped with the sensor chips that have built-in analog memory, this compact color Contact Image Sensor Heads is suitable
for any scanning applications that require rapid scanning of widths of up to A6. It best fits into the photo graphic applications.
 Applications
Check readers, card scanners, and a variety of other image input devices.
Features
1) By integrating the signal amplifier on the sensor chip, external noise is shut out. Additionally, newly developed analog
memory circuit and realizes high speed scanning.
2) The LED light source is mounted on the same substrate as the sensor chip which makes it possible to package the
device with lighter weight and an extremely small size.
3) With the proprietary prism(reflectors), the output signal is maintained uniformly.
4) The ceramic substrate is used for excellent dimensional accuracy and thermal stability.
Variation and maximize the image re-productivity.
Dimensions (Unit : mm)
119.5 ± 0.3
5.5 ± 0.3
108(Effective Reading Width:104)
CL
No.1 Pixel
12.5 ± 0.05
17.5 ± 0.25
2.5
5.5 ± 0.3
φ 2 ± 0.05 Depth1
A
25 ± 1
Max. 1.5
15.5 ± 1
Note) Deflection at the top of glass : 0 to 0.25
Projection to platen is positive
Socket Housing : IL-Z-7S-S125C3(JAE)
Socket Contact : IL-Z-C3-A-15000(JAE)
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c 2011 ROHM Co., Ltd. All rights reserved.
○
(10.4)
(3.8)
No.7
No.1
Max.2
10.36 ± 0.4
5 ± 0.1
Pin No.
No.1
No.2
Signal
Ao
Pin No.
No.6
Signal
GLED
GND
No.7
VLED
No.3
SI
No.4
No.5
CLK
VDD
1/3
2011.03 - Rev.B
LSH2004-AA10A
Data Sheet
Characteristics
Parameter
Symbol
Typ.
Unit
Effective scanning width
−
104
mm
Primary scan dot density
−
203
dpi
Total dot number
−
864
dots
Power supply voltage
VDD
5
V
Scanning speed
SLT
0.4
ms / line ∗
Clock frequency
CLK
1.25
MHz
Maximum dynamic range
VRMax.
0.75
V
Minimum dynamic range
VRMin.
0.375
V
Vod
1.7±0.2
V
−
5 to 45
°C
Dark output
Operating temperature
Analogue signals are produced output at double rate of clock frequency.
Pin assignments
No.
Circuit
I/O
1
Ao
O
Analog output
2
GND
I
Ground
3
Sl
I
Serial-in
4
CLK
I
Clock
5
VDD
I
Power supply
6
G-LED
I
LED ground
7
V-LED
I
LED power supply
Functions
Timing chart
(a) CLK Timing Chart
1/fCLK
twCLK
twCLK
CLK
trCLK
tfCLK
90%
90%
50%
50%
10%
10%
tSETUP
tHOLD
SP
t pd1
ts
Ao
1pixel
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c 2011 ROHM Co., Ltd. All rights reserved.
○
2/3
2pixel
2011.03 - Rev.B
LSH2004-AA10A
Data Sheet
(b) Data Output Timing Chart
After turning on the SI pulse, the analog output shape starts from the setting up point of 27 clock pulse.
1
2
3
4
26
27
28
29
CLK
SI
Ao
Note) Output blank part cannot be used as the analog output standard level.
Inner circuit
VDD
0.1μF x 3
864
1
GND
SP
ANALOG MEMORY CIRCUIT
CLK
Ao
V LED
G LED
6
7
1
5
3
4
R2
2
R1
C1
Current adjust
Circuit
A
VDD
SP
CKL
GND
C3
VLED
LED GND
∗R1, R2=500
C1=47 μF
C3=100 μF
∗Please adjust the value of resistance to fit your interface circuit.
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c 2011 ROHM Co., Ltd. All rights reserved.
○
3/3
2011.03 - Rev.B
Notice
Notes
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
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© 2011 ROHM Co., Ltd. All rights reserved.
R1120A
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