ROHM LSH1208-BD70A Technical data

Multi line sensor heads for Wide format Scanner

LSH1208-BD70A

Multi line Sensor heads(MLS) corresponding to high speed scan and to reading wrinkles and fold lines due to 6 output channels
and dual light source. Newly developed shield-structure sensor IC improved anti-noise characteristic.

Applications

High speed reading equipment (i.e. document scanners, wide format scanners devices).

Features

1) High speed reading capability due to 6 analog output.

2) Newly developed shield-structure sensor IC shuts out external noise. Moreover, it reduces malfunction due to applying
electro-static as represented by IEC61000-4-2.

3) Reduction of shade due to wrinkles and fold lines by adopting dual light source.

Dimensions (Unit : mm)

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2009.12 - Rev.A

Characteristics

Parameter

Effective scanning width

Primary scan dot density

Total dot number

Power supply voltage

Reference voltage

Scanning speed

Clock frequency

Maximum dynamic range

Minimum dynamic range

Dark output

Operating temperature

Pin assignments

Pin No. Signal Pin No. Signal

No.1

No.2

No.3

No.4

No.5

No.6

No.7

No.8

No.9

No.10

No.11

No.12

No.13

No.14

No.15

GND

Ao1

GND No.18

Ao2

GND No.20

Ao3

GND No.22

Ao4

GND

Ao5

GND

Ao6

GND

VREF

VDD

No.16

No.17

No.19

No.21

No.23

No.24

No.25

No.26

No.27

No.28

No.29

No.30SPMODE

Symbol Typ. Unit

−

−

−

V

DD

REF

V

SLT

CLK

VRMax

VRMin.

Vod

−

CLK

GND

G-GND

R-GND

B-GND

V-LED

GND

G-GND

R-GND

B-GND

V-LED

GND

VDD

216

1200

10368

3.3

0.8

0.125×3

8

0.5

0.25

V

REF

5 to 45

+

0.1

−

mm

dpi

dots

V

V

ms / line

MHz

V

V

V

°C

Data Sheet LSH1208-BD70A

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2009.12 - Rev.A

Timing chart

(a) CLK Timing Chart

CLK

1/fCLK

twCLK

Data Sheet LSH1208-BD70A

twCLK

SP

Ao

50%

1 to 3

50%

tHOLDtSETUP

90%

1pixel 2pixel

ts

(b-1) Data Output Timing Chart (1200dpi mode)
After turning on the SP pulse, the analog output starts from the setting up point of 83 clock pulse.

1200dpi mode

1

2 82 83 1810 1811

CLK

SP

A

O

REF

output period V

V

Analog output period
(Not guaranteed)

Ao1 :
Ao2 :
Ao3 :
Ao4 :
Ao5 :
Ao6 :

Note)The CLK section area which is over the effective pixel numbers
(Output blank part) cannot be used as the analog Output
standard level.

1 to 82clock 1 to 64pixels 65 to 1728pixels
1 to 82clock
1 to 82clock
1 to 82clock
1 to 82clock
1 to 82clock

−

−

−

−

−

Analog output period
(Guaranteed)

1729 to 3456pixels
3457 to 5184pixels
5185 to 6912pixels
6913 to 8640pixels
8641 to 10304pixels

Analog output period
(Not guaranteed)

−

−

−

−

−

10305 to 10368pixels

REF

output

period

1811clock to
1811clock to
1811clock to
1811clock to
1811clock to
1811clock to

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2009.12 - Rev.A

(b-2) Data Output Timing Chart (600dpi mode)
After turning on the SP pulse, the analog output starts from the setting up point of 83 clock pulse.

600dpi mode

CLK

SP

A

O

1

2 82 83 946 947

REF

output period V

V

Analog output period
(Not guaranteed)

Analog output period
(Guaranteed)

Analog output period
(Not guaranteed)

REF

period

Data Sheet LSH1208-BD70A

output

Ao1 :
Ao2 :
Ao3 :
Ao4 :
Ao5 :
Ao6 :

Note)The CLK section area which is over the effective pixel numbers
(Output blank part) cannot be used as the analog Output
standard level.

1 to 82clock 1 to 32pixels 33 to 864pixels
1 to 82clock
1 to 82clock
1 to 82clock
1 to 82clock
1 to 82clock

−

−

−

−

−

865 to 1728pixels
1729 to 2592pixels
2593 to 3456pixels
3457 to 4320pixels
4321 to 5152pixels

5153 to 5184pixels

(b-3) Data Output Timing Chart (300dpi mode)
After turning on the SP pulse, the analog output starts from the setting up point of 83 clock pulse.

300dpi mode

1 2 82 83 514 515

CLK

SP

O

A

−

−

−

−

−

947clock to
947clock to
947clock to
947clock to
947clock to
947clock to

V

REF

output period V

Ao1 :
Ao2 :
Ao3 :
Ao4 :
Ao5 :
Ao6 :

Note)The CLK section area which is over the effective pixel numbers
(Output blank part) cannot be used as the analog Output
standard level.

1 to 82clock 1 to 22pixels 23 to 432pixels
1 to 82clock
1 to 82clock
1 to 82clock
1 to 82clock
1 to 82clock

Analog output period
(Not guaranteed)

−

−

−

−

−

Analog output period
(Guaranteed)

433 to 864pixels
865 to 1296pixels
1297 to 1728pixels
1729 to 2160pixels
2161 to 2570pixels

Analog output period
(Not guaranteed)

−

−

−

−

−

2571 to 2592pixels

REF

output

period

515clock to
515clock to
515clock to
515clock to
515clock to
515clock to

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2009.12 - Rev.A

Inner circuit

V

DD

GND

SP

CLK

1μF×6

Data Sheet LSH1208-BD70A

1

ANALOG MEMORY CIRCUIT

10368

V

V

MODE

DD

REF

Peripheral circuit

4132

Ao1

Ao2

Ao3
Ao4

Ao5
Ao6

MODE
V

REF

V

LED

GND

R

G

GND

B

GND

1

V

LED

R

GND

G

GND

B

GND

Multi Line Sensor Heads

30 272928

8 10

6 16 22 20, 21 23 25

12

10368

5, 7, 9, 11,

14

13, 15, 17
19, 24, 26

18

B

LED GND

R3

R3

RG

C3

C4

V

LED

B

LED GND

RG

C3

C4

V

Ao6

LED

Ao5

R3

R3

R3

Ao4 Ao3 Ao2 Ao1

C1

V

R3

V

DD

C2

REF

C5

R1

R2

CLKSP

R1=R2=100Ω, R3=100KΩ
C1=C2=47μF
C3=100μF, C4=0.1μF, C5=100pF

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2009.12 - Rev.A

MODEGND

Notes

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consent of ROHM Co.,Ltd.

The content specied herein is subject to change for improvement without notice.

The content specied 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 specications,
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 specied 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 specied 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 par ties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.

Notice

The Products specied in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, ofce-automation equipment, commu­nication devices, electronic appliances and amusement devices).

The Products specied in this document are not designed to be radiation tolerant.

While ROHM always makes ef forts 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
against the possibility of physical injury, re or any other damage caused in the event of the
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shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.

The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
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