AMIS-710207-A4: 200dpi CIS Module

Data Sheet

7.0 Electro-Optical Characteristics

The tabled values are measured at 25°C.

Table 4: Electro-Optical characteristics at 25°C

Parameter

Symbol

Typical

Units

Note

Number of photo detectors

1728

Elements

Pixel-to-pixel spacing

125

µm

Line scanning rate

(1)

Tint

347

µsec

@ 5.0MHz clock frequency

Clock frequency

(2)

fclk

5.0

MHz

Bright output voltage

(3)

Vpavg

1.1

+0.2/-0.1

Volts

Bright output non-uniformity

(4)

Up

<|+/-30|

%

Adjacent pixel non-uniformity

(5)

Uadj

<25

%

Dark non-uniformity

(6)

Ud

<75

mV

Dark output voltage

(6)

Vd

<200

mV

Modulation transfer function

(7)

MTF

>40

%

Notes:

1.

Tint is the line scanning rate or integration time. Tint is determined by the interval of two start pulses, SP. The integration time of 347

µsec is set at the factory. For

additional comments, see Note (1) under Table 5.

2.

fclk: main clock frequency.

3.

Vpavg =

∑ Vp(n)/1728.

4.

Up = [(Vpmax - Vpavg) / Vpavg] x 100% or [(Vpavg - Vpmin) / Vpavg] x 100%, where Vpmax = maximum pixel amplitude in the line scan and Vpmin = minimum

pixel amplitude in the line scan.

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

Upadj is the non-uniformity in percent between adjacent pixels, where Vp(n) is the n

5.

Ud = Vdmax – Vdmin.

Vd = the average dark output level.

Vdmin is the minimum output on a black document (LED is turned off).

Vdmax: maximum output voltage of black document (LED is turned off).

6.

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

Vmax: maximum output voltage at 50lp/in and Vmin: minimum output voltage at 50lp/in, where lp / in is the line pairs per inch.

4

AMI Semiconductor – May 06, M-20494-001

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