PI224MC-A6 Datasheet, PDF (2/6 Pages) AMI SEMICONDUCTOR – 200DPI CIS Sensor

micro lens array that focuses the scanned documents to image onto its sensing plane.
The on-board amplifier processes the video signal to produce a sequential stream of video
at the video output pin of the PI224MC-A6 module.
Illumination is by means of an integrated LED light source. All components are housed in
a small plastic housing which has a cover glass which acts as the focal point for the object
being scanned and protects the imaging array, micro lens assembly, and LED light source
from dust. I/O to the module is the 10-pin connector located on one end of the module.
The cross section of the PI224MC-A6 is shown in Figure 1 and the block diagram in
Figure 2.
DOCUMENT SURFACE
GLASS WINDOW
LIGHT PATH
BAR
LED
PCB
SENSORS
INSIDE PICTORIAL OF MODULE
Figure 1. PI224MC-A6 Cross Section
GLED
VLED
LED
LED
LED
LED
LED
LED
LED
LED
12
34
ROD LENS
PHOTO SENSORS
830
832
831
5 ----------------
VIDEO
LINE
BUFFER
SHIFT REGISTER
VIDEO AMPLIFIER
VN(-V)
VDD (+5)
GRD
VOUT
CP
SP
GRD
Figure 2. PI224MC-A6 module block diagram
PAGE 2 OF 6 - PI224MC-A6, 8/25/00