AMIS-710600-A8: 600dpi CIS Module
4.3 Electro-Optical Characteristics (25
°
C)
°
°
Data Sheet
Table 4: Electro-Optical Characteristics at 25 C
Parameter
Number of photo detectors
Pixel-to-pixel spacing
Line scanning rate
(2)
Symbol
Tint
(1)
Parameter
1344
42.3
680
Units
Elements
µm
µsec
Note
@ 2.0MHz clock
frequency
(see Note 1)
Clock frequency
(3)
Bright output voltage
(4)
Bright output non-uniformity
(5)
Adjacent pixel non-uniformity
(6)
Dark non-uniformity
(7)
Dark output voltage
(8)
Modulation transfer function
Notes:
(1)
f
Vpavg
Up
Uadj
Ud
Vd
MTF
2.0
1.0
<+/-30
<15
<200
<0.1
>30
MHz
V
%
%
mV
V
%
See Note 7
Tint: line scanning rate or the integration time. Tint is determined by the interval of two SPs. The minimum tint of 390us is available with a 3.5MHz clock. However,
the Vpavg is directly proportional to the integration time. For example, if tint is increased two times, Vpavg increases by two. Alternately, if tint is decreased by two
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.
(2) f: main clock frequency
(3) The video output is 1.0V with an integration time of 680µs. The video output is calculated based on Vpavg =
∑
Vp(n)/1344
(4) Up = [(Vpmax - Vpavg) / Vpavg] x 100% or [(Vpavg - Vpmin) / Vpavg] x 100%
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
th
pixel in the scan.
Upadj is the non-uniformity percentage pixel to pixel
(6) Ud = Vdmax – Vdmin
Vdmin is the minimum output on a black document(O.D.=0.8)
(9)
Vdmax: maximum output voltage of a black document (O.D.= 0.8)
(7) Vd is adjustable, it can be set to ground, (0V). The factory adjust is close to 0V.
(8) (8) MTF = [(Vmax - Vmin) / (Vmax + Vmin)] x 100 [%]
Vmax: maximum output voltage on a 11.8lp/mm
(10)
bar target (300dpi)
(11)
Vmin: minimum output voltage on a 11.8lp/mm (300dpi) bar target.
(9) O.D. = optical density
(10) lp / mm: line pair per mm
(11) DPI = dots per inch
4.4 Recommended Operating Conditions (25
°
C)
Table 5: Recommended Operating Conditions (25 C)
Item
Symbol
Power supply
VDD
VLED
IDD
ILED
Input voltage at digital high
Vih
Input voltage at digital low
Vil
Clock frequency
f
Clock pulse high duty cycle
Clock pulse high duration
Integration time
Tint
Operating temperature
Top
Notes:
(1)
(2)
°
Min.
4.5
4.5
20
85
Vdd-1.0
0
25
(1)
71
(2)
390
Mean
5.0
5
25
115
Vdd-.5
50
Max.
5.5
5.5
30
150
Vdd
0.8
3.5
75
10000
50
25
Units
V
V
ma
ma
V
V
MHz
%
ns
µs
°
C
This is with a maximum clock frequency of 3.5MHz and a duty cycle of 25 percent.
The integration time is the minimum allowable time at a 3.5MHz clock rate.
AMI Semiconductor
– July. 06, M-20597-001
www.amis.com
4
AMI [ AMI SEMICONDUCTOR ]
