PI325MC-A4 Datasheet, PDF (2/6 Pages) AMI SEMICONDUCTOR – 300DPI CIS Module

signal to produce a sequential stream of video at the video output pin of the PI325MC-A4
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 PI325MC-A4 is shown in Figure 1 and the block diagram in Figure 2.
DOCUMENT SURFACE
LIGHT PATH
GLASS WINDOW
BAR
LED
PCB
SENSORS
INSIDE PICTORIAL OF MODULE
Figure 1. PI325MC-A4 Cross Section
GLED
VLED
LED
LED
LED
LED
LED
LED
LED
LED
12
34
ROD LENS
PHOTO SENSORS
2590
2592
2591
5 ----------------
VIDEO
LINE
BUFFER
SHIFT REGISTER
VIDEO AMPLIFIER
VN(-V)
VDD (+5)
GRD
VOUT
CP
SP
GRD
Figure 2. PI325MC-A4 module block diagram.
(See Table 1 for pin-out designations)
PAGE 2 OF 6 - PI325MC-A4, 11-15-00