AMIS-721250 参数 Datasheet PDF下载

AMIS-721250: Contact Image Sensor

4.0 Functional Description

4.1 Input/Output Terminals

Data Sheet

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

Start pulse:

SI

I

Input to start a line scan (see discussion of the sensors unique features for further details)

Global start pulse:

GBST

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)

Clock:

CLK

I

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)

Switch control:

SC

I

Selects the 600 or 1200dpi mode (see discussion of the sensors unique features for further details)

VDD

I

Power supply

Video output voltage:

VOUT

O

Output video signal from the amplifier

VSS

I

Ground

Reference voltage:

VREF

I/O

Reference input voltage for the amplifier output. Sets the output’s reset (dark) level.

End of scan pulse:

SO

O

Output from the shift register at the end of a scan

AMI Semiconductor

– Dec. 05, M-20496-004

www.amis.com

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