AMIS-710600-A8: 600dpi CIS Module

Data Sheet

4.3 Electro-Optical Characteristics (25

rs at 25

Table 4 lists the typical operational paramete

Table 4: Electro-Optical Characteristics at 25

Parameter

Symbol

Parameter

Units

Note

Number of photo detectors

1344

Elements

Pixel-to-pixel spacing

42.3

µm

Line scanning rate

Ti

(1)

nt

680

µsec

@ 2.0MHz clock

frequency

(see Note 1)

Clock frequency

(2)

f

2.0

MHz

Bright output voltage

(3)

Vpavg

1.0

V

Bright output non-uniformity

(4)

Up

<+/-30

%

Adjacent pixel non-uniformity

(5)

Uadj

<15

%

Dark non-uniformity

(6)

Ud

<200

mV

Dark output voltage

(7)

Vd

<0.1

V

See Note 7

Modulation transfer function

(8)

MTF

>30

%

Notes:

(1)

Tint: line scanning rate

the Vpavg is directly proportional to

or the integration time. Tin

rmined by the interval

SPs. The minimum tint of 390us is avai

MHz clock. However,

the integration

or example, if tint is in

d two times, Vpavg increases by two. Alternately, if tint is decreased by two

(2)

(3)

g] x 100% or [(Vpavg - Vpmin) / Vpavg] x 100%

.D.=0.8)

(9)

(O.D.= 0.8)

is close to 0V.

(8)

(11)

(10)

4.4 R

rating Conditions (25

of the module.

t is dete

time. F

of two

crease

lable w h a 3.5

it

then Vpavg decreases by two. The Vpavg of this module is adjusted to 1.0V with an integration time of 680µsec with a CP = 2.0MHz, hence if the SP is increased

or decreased, the output will also increase or decrease. Note that changing the clock frequency will also change the tint if the SP rate is divided down from the

CP.

f: main clock frequency

The video output is 1.0V with an integration time of 680µs. The video output is calculated based on Vpavg =

∑ Vp(n)/1344

Up = [(

(4)

Vpmax - Vpavg) / Vpav

Where Vpmax = the maximum video pixel value and

Vpmin = the minimum video pixel value in the line scan.

(5)

Upadj = MAX[ | (Vp(n) - Vp(n+l) | / Vp(n)) x 100%

Where Vp(n) is the n

Upadj i

non-uniformity percentage pixel to pixel

s the

(6)

Ud = Vdmax – Vdmin

Vdmin is the minimum output on a black document(O

Vdmax: maximum output voltage of a black document

(7)

Vd is adjustable, it can be set to ground, (0V). The factory adjust

(8) MTF = [(Vmax - Vmin) / (Vmax + Vmin)] x 100 [%]

Vmax: maximum output voltage on a 11.8lp/mm

Vmin: minimum output voltage on a 11.8lp/mm (300dpi) bar target.

(9)

O.D. = optical density

lp / mm: line pair per mm

DPI = dots per inch

(11)

ecommended Ope

Table 5 lists the recommended operating conditions

Table 5: Recommended Operating Conditions (25

Item

Symbol

Min.

Mean

Max.

Units

VDD

4.5

5.0

5.5

V

VLED

4.5

5

5.5

V

IDD

20

25

30

ma

Power supply

ILED

85

115

150

ma

Input voltage at digital high

Vih

Vdd-1.0

Vdd-.5

Vdd

V

Input voltage at digital low

Vil

0

0.8

V

Clock frequency

f

3.5

MHz

Clock pulse high duty cycle

25

50

75

%

Clock pulse high duration

71

(1)

ns

Integration time

Tint

3

)

1

90

(2

0000

µs

Operating temperature

Top

25

50

Notes:

(1)

This is with a m

(2)

The integration

aximum clock frequency of 3.5MHz a

ty cycle of 25

nt.

time is the minimum allowable time at

Hz clock rate.

nd a du

a 3.5M

pe e

rc

4

AMI Semiconductor – July. 06, M-20597-001

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