PI310MC-DR Datasheet, PDF (8/10 Pages) AMI SEMICONDUCTOR – 300DPI CIS Two Level Digital Output Module

Peripheral Imaging corporation
Setup and Adjustments
The Clock Rate and Integration Time
The following values were factory set for a specific application.
See note 1 under Table 2, Electro-optical characteristics at 25° C.
The clock frequency was set to 2.4 MHz.
The total integration time was set to 560 µsec.
The Required Power
The required power is slightly greater than the specified values in Table 3.
Circuit Power:
Positive Supply:
Negative Supply:
LED Power:
+5 Volts
-10 Volts
+24 Volts
@ 25 mA
@ 10 mA
@ 90 mA
Adjustments
General Location of Test, Adjustment and Monitor Points
BACK SIDE OF THE PCB AS VIEWED ON MODULE
WITH THE GLASS WINDOW FACING DOWN.
R16 (Gain Adj)
TV
TR
R18 (Offset Adj)
TVD
Connector
VLED
GLED
FIGURE 5. PI310MC-DR PCB Monitor & Test Points
Figure 5, PI310MC-DR PCB MONITOR AND TEST POINTS, shows the pictorial layout of
the controls and the tests points. These adjustment potentiometers and the test points are
shown relative to the connector and to the output pads for LED light power. This is a bird’s
eye view of the PCB’s backside with the glass window of the module facing down on the
documents.
Test point labeled TV is for the analog image pixels, just as it is produced at the output of
the CIS array section, and prior to its entry into the tracking digitizer circuit.
Test point labeled TR is the output of the tracking reference level from the tracking digitizer
circuit.
Test point labeled TVD is the digital output from the comparator.
Page 8 of 10 PI310MC-DR Description, 7/30/99