ROHM LSH2004-AA20A Technical data

Contact Image Sensor Heads for narrow-width scanners

LSH2004-AA20A

Compatible with A6 size media, feature a dual-arch structure, allowing straight pass reading (both-directions). In addition, they
are compact, measuring only 119.5mm in length.

Applications

Check readers, card scanners, and a variety of other image input devices.

Features

1) Signal amplifier integrated into each sensor IC in order to eliminate external noise ; compatible with 3.3V interface.

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.

Dimensions (Unit : mm)

5.5±0.3

Paper Feed Direction

(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)

119.5±0.3

109.6 (Effectiv Reading Width :104.6)

C

L

60±0.3 29.75±0.3

A

15.5±1
25±1

Max. 1.5

No.1 Pixel

No.9

3.96±0.5

(12.9)

(3.8)

Pin No. Signal

No.1
No.2
No.3
No.4
No.5
No.6

17.5±0.25

No.1

CLK
SP
VDD
GND
Ao
RLED

2.5

12.5±0.05

Max.2

Pin No. Signal

No.7
No.8
No.9

5±0.1

φ2±0.05

(Depth 1)

10.7±0.4

GLED
BLED
VLED

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2011.03 - Rev.B

Characteristics

Parameter
Effective scanning width
Primary scan dot density
Total dot number
Power supply voltage
Scanning speed
Clock frequency
Maximum dynamic range
Minimum dynamic range
Dark output
Operating temperature

Pin assignments

No.

Circuit
1
2
3
4
5
6
7
8IBLED

CLK

SP

V

DD

Ao

RLED

GLED

I / O

I
I
I
IGND

O

I
I

Functions
Clock
Start Pulse
Power Supply
Ground
Analog Output
LED ground
LED ground
LED ground

LED power supply9IVLED

Symbol Typ. Unit

−

−

−

DD

V
SLT
CLK

VRMax.

VRMin.

Vod

−

104.6
200
864

3.3

0.125×3
8

0.5

0.25

0.8±0.2
5 to 45

mm

dpi

dots

V

ms / line

MHz

V
V
V

°C

Data Sheet LSH2004-AA20A

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2011 ROHM Co., Ltd. All rights reserved.

2011.03 - Rev.B