AMIS-710207-A4: 200dpi CIS Module
7.0 Electro-Optical Characteristics
The tabled values are measured at 25°C.
Table 4: Electro-Optical characteristics at 25°C
Parameter
Symbol
Number of photo detectors
Pixel-to-pixel spacing
(1)
Line scanning rate
Tint
(2)
Clock frequency
fclk
(3)
Bright output voltage
Vpavg
(4)
Bright output non-uniformity
Up
(5)
Adjacent pixel non-uniformity
Uadj
(6)
Dark non-uniformity
Ud
(6)
Dark output voltage
Vd
(7)
Modulation transfer function
MTF
Notes:
1.
2.
3.
4.
Data Sheet
Typical
1728
125
347
5.0
+0.2/-0.1
1.1
<|+/-30|
<25
<75
<200
>40
Units
Elements
µm
µsec
MHz
Volts
%
%
mV
mV
%
Note
@ 5.0MHz clock frequency
5.
6.
Tint is the line scanning rate or integration time. Tint is determined by the interval of two start pulses, SP. The integration time of 347µsec is set at the factory. For
additional comments, see Note (1) under Table 5.
fclk: main clock frequency.
Vpavg =
∑
Vp(n)/1728.
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
th
pixel in the line scan.
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).
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.
AMI Semiconductor
– May 06, M-20494-001
www.amis.com
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