AMIS-720649 Datasheet, PDF (1/10 Pages) AMI SEMICONDUCTOR – Contact Image Sensor

AMIS-720649: Contact Image Sensor
Data Sheet
1.0 General Description
AMI Semiconductor’s AMIS-720649 (PI6049A) contact image sensor (CIS) is a 600 dots per inch (dpi) resolution linear image sensor,
which employs AMI Semiconductor’s proprietary CMOS image sensing technology. The sensor contains an on-chip output amplifier,
power down circuitry and parallel transfer features that are uniquely combined with present-day active-pixel-sensor technology. The
image sensors are designed to be cascaded end-to-end on a printed circuit board (PCB) and packaged in an image sensing module.
Applications for the sensor array include facsimiles, PC scanners, check readers, and office automation equipment.
Figure 1 is a block diagram of the sensor. Each sensor consists of 344 active pixels, their associated multiplexing switches, buffers and
an output amplifier circuit with a power-down feature. The detector’s element-to-element spacing is approximately 42.3µm. The size of
each sensor without the scribe lines is 14560µm by 380µm.
2.0 Block Diagram
42.3µm
14560µm
1
2
3
4
Row of 344 Pixels
and Video Line
Multiplexer
341 342
343
344
Parallel Transfer, Storage Cells and Readout Registers
380µm
GBST
Amplifier, Power-
Down and Offset
Control
SI
SIC
CLK AVDD DVDD AVSS DVSS VOUT OR OS VR SO
Figure 1: Sensor Block Diagram
AMI Semiconductor – Dec. 05, M-20488-001
1
www.amis.com