Rohm LSH3004-AA20A Multi line sensor heads for narrow-width scanner Datasheet

Multi Line Sensor Heads for narrow-width scanners
LSH3004-AA20A
Compatible with A6 size media, feature a dual-arch structure, allowing straight-pass reading (both-directions). In addition, it is
compact, measuring only 119.5mm in length.
zApplications
Check readers, card scanners, and a variety of other image input devices.
zFeatures
1) Signal amplifier integrated into each sensor IC in order to eliminate external noise.
2) LED light source mounted on the same substrate as the sensor chip itself, resulting in a more compact, lightweight package.
3) Proprietary prism maintains a uniform output signal.
4) Ceramic substrate used, ensuring excellent dimensional and thermal stability.
6.5
119.5
10.7
104.9(Effective Reading Width)
φ2(Depth 1)
5
29.75
15.5
25
MAX.1.5
MAX.2.3
60
12.5
17.5
2.5
5.5
Paper Feed Direction
zDimensions (Unit : mm)
(12.9)
No.9
No.1
Pin No.
No.1
No.2
No.3
No.4
No.5
No.6
(NOTE 1)
Deflection at the top of glass:0-0.25
Projection to platen is positive.
(NOTE 2)
Socket Housing:IL-Z-9S-S125C3(JAE)
Socket Contact:IL-Z-C3-A-15000(JAE)
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Signal
CLK
SP
VDD
GND
AO
RLED
Pin No.
No.7
No.8
No.9
Signal
GLED
BLED
VLED
2009.11 - Rev.A
LSH3004-AA20A
Data Sheet
zCharacteristics
Parameter
Symbol
Typ.
Unit
Effective scanning width
−
104.9
mm
Primary scan dot density
−
300
dpi
Total dot number
−
1296
dots
Power supply voltage
VDD
3.3
V
Scanning speed
SLT
0.28×3
Clock frequency
CLK
5
MHz
ms / line ∗
Maximum dynamic range
VRMax.
0.5
V
Minimum dynamic range
VRMin.
0.25
V
Vod
0.8±0.2
V
−
5 to 45
°C
Dark output
Operating temperature
∗ Analogue signals are produced output at double rate of clock frequency.
zPin assignments
No.
Circuit
I/O
1
CLK
I
Clock
2
SP
I
Start pulse
3
VDD
I
Power Supply
4
GND
I
Ground
5
Ao
O
Analog Output
6
RLED
I
LED ground
Functions
7
GLED
I
LED ground
8
BLED
I
LED ground
9
VLED
I
LED power supply
zTiming chart
(a) CLK Timing Chart
1/fCLK
twCLK
50%
twCLK
50%
50%
CLK
ts
SP
50%
50%
tSETUP tHOLD
Ao
1pixel
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2pixel
2009.11 - Rev.A
LSH3004-AA20A
Data Sheet
(b) Data Output Timing Chart
After turning on the SP pulse, the analog output shape starts from the setting up point of 83 clock pulse.
1
2
82
83
84
CLK
SP
Ao
VREF Output Period (82pixels)
Analog Output Period
1 to 82clock
1 to 1296pixels
Note) Output blank part cannot be used as the analog output standard level.
zInner circuit
VDD
1µF x 6, 0.1µF x 1
680Ω
1296
1
GND
1µFx1
SP
VDD
220Ω
ANALOG MEMORY CIRCUIT
CLK
VREF
100kΩ
Ao
VLED
RGND
GGND
BGND
zPeripheral circuit
8
7
6
9
5
3
2
1
4
C2
R2
B
G
R1
R
C1
C3
C4
LED GND
VLED
AO
VDD
SP
CLK
GND
∗ R1=R2=100Ω
C1=47µF, C2=100pF
C3=100µF, C4=0.1µF
∗ Please adjust the value of resistance to fit your interface circuit.
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2009.11 - Rev.A
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
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The Products are not designed or manufactured to be used with any equipment, device or
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