PI223MC-A6 Datasheet, PDF (4/6 Pages) AMI SEMICONDUCTOR – 200DPI CIS Sensor

Electro-Optical Characteristics (25° C)
Table 4. Electro-optical characteristics at 25° C.
Parameter
Number of photo detectors
Pixel to pixel spacing
Line scanning rate
Symbol
Tint⁽¹⁾
Parameter
832
125
420
Units
elements
µm
µsec
Clock frequency⁽²⁾
f
2
MHz
Bright output voltage⁽³⁾
Video Output
1.0
V
Bright output
nonuniformity⁽⁴⁾
Adjacent pixel
nonuniformity⁽⁵⁾
Dark nonuniformity⁽⁶⁾
Dark output voltage
Modulation transfer
function⁽⁷⁾
Up
Uadj
Ud
Vd
MTF
<+/-30
%
<25
%
<20
mV
<200
mV
>50
%
Note
@ 2 MHz
clock
frequency
See note 2
for 5.0 MHz
operation.
Specified
for
420µsec.
See note 7
for MTF &
DOF.
Definition:
(1) Tint: Line scanning rate or integration time. Tint is determined by the interval of two
SP, start pulses. See note 2 for the high scanning speed operation.
(2) f: main clock frequency. The call out is at 2.0 MHz, but electrically it reliably operates
to 5.0 MHz. However, it must be optically modified to obtain the minimum integration
time of 167 µsec. This modification is offered as a user's option.
(3) Vpavg = ∑ Vp(n)/832
(4) Up = [(Vpmax - Vp) / Vp] x 100% or [(Vp - Vpmin) / Vp] x 100%
(5) Upadj = MAX[ | (Vp(n) - Vp(n+l) | / Vp(n)] x 100%
Upadj is the nonuniformity percentage pixel to pixel
(6) Ud = Vdmax - Vdmin
Vdmin is the minimum output on a black document(O.D.=0.8)
Vdmax: maximum output voltage of black document (O.D.= 0.8)
(7) MTF = [(Vmax - Vmin) / (Vmax + Vmin)] x 100 [%]. DOF range is defined with the MTF.
MTF is measure at glass surface and at 0.4mm from the glass > 50% and peaks at
approximately mid-point of 0.2mm.
Vmax: maximum output voltage at 50 lp/inch (At 1/2 of the optical Nyquest Frequency)
Vmin: minimum output voltage at 50 lp/inch
(8) O.D. = Optical Density
(9) lp / inch: line pair per inch
PAGE 4 OF 6 - PI223MC-A6, 5/24/00