pi627mc-a4 AMI Semiconductor, Inc., pi627mc-a4 Datasheet - Page 8

• Manufacturer Part Number: pi627mc-a4
• Description: A Family Of 600dpi Cis Modules, Each With A Specific Led Light Source Semiconductor
• Manufacturer: AMI Semiconductor, Inc.

PI627MC-A4 / PI628MC-A4 / PI629MC-A4 Engineering Data Sheet
_______________________________________________________________________
Module: PI629MC-A4
Light source: Low Power Yellow-Green LED
Notes:
1. Tint is the line-scanning rate or integration time and is determined by the interval between two start
2. Fclk is the main clock frequency, also equals the pixel rate.
3. Video output level is dependent on the Integration time and LED light power.
4. Up = [Vp(max) - Vpavg] / Vpavg x 100% or [Vpavg - Vp(min)] / Vpavg} x 100%, whichever is
5. Adjacent Photo-Response Non-Uniformity (Upn).
6. Ud = Vdmax - Vdmin, where Vdmin is the minimum output voltage with LED off and Vdmax is
7. See paragraph under Reset Level and Video Sampling Time on page 10 for explanation.
8. See the paragraph under Depth of Focus on page 11. A graph of the typical MTF vs Depth of Focus
pulses, SP. The integration time listed for each module is the minimum integration time required to
give 0.5 volts output at each modules maximum clock frequency.
greater. Where Vp(max) = maximum pixel level, Vp(min) = minimum pixel level, and Vpavg =
average of all pixels.
Upn = Max ((Vpn – Vpn+1) / Min (Vpn, Vpn+1)) x 100%, where Vpn is the pixel output voltage of
pixel n in the light.
maximum output voltage with LED on.
is shown.
Table 9. PI629MC-A4 / Low Power Yellow-Green LED Electro-Optical Characteristics
Line scanning rate
Clock frequency
Bright output voltage
Bright output nonuniformity
Adjacent photo-response non-
uniformity
Dark nonuniformity
Dark output voltage
Modulation transfer function
Parameter
(5)
(2)
(1)
(6)
(7)
(3)(7)
(4)
(8)
Page 8 of 13, Revised 9-08-05
Dark Level (DL)
Video Output
Symbol
MTF
Upn
Fclk
Tint
Up
Ud
< +/-30
Value
< 100
< 350
> 40
<25
450
3.0
0.5
Units
µsec
MHz
Volt
mV
mV
%
%
%
@ 3.0MHz
clock frequency
Notes