AMIS-721250 Datasheet, PDF (3/12 Pages) AMI SEMICONDUCTOR – Contact Image Sensor

AMIS-721250: Contact Image Sensor
Data Sheet
4.0 Functional Description
4.1 Input/Output Terminals
The AMIS-721250 image sensor has ten input and output (I/O) pads. Their symbols and function descriptions are listed in Table 1.
Table 1: Input and Output Terminals
Signal
I/O Description
SI
I
Start pulse:
Input to start a line scan (see discussion of the sensors unique features for further details)
GBST
Global start pulse:
I Globally initializes the start inputs of all sensors and starts the scanning process of the first sensor (see
discussion of the sensors unique features for further details)
CLK
I
Clock:
Clock input for the shift register
Start input control:
SIC
I Input to control the Start Pulse to the first sensor (see discussion of the sensors unique features for further
details)
SC
I
Switch control:
Selects the 600 or 1200dpi mode (see discussion of the sensors unique features for further details)
VDD
I Power supply
VOUT
O
Video output voltage:
Output video signal from the amplifier
VSS
I Ground
VREF
I/O
Reference voltage:
Reference input voltage for the amplifier output. Sets the output’s reset (dark) level.
SO
O
End of scan pulse:
Output from the shift register at the end of a scan
AMI Semiconductor – Dec. 05, M-20496-004
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