Preliminary PI3041A datasheet

PI3041A

300DPI CIS Sensor Chip

Engineering Data Sheet

Description:

Peripheral Imaging Corporation PI3041A CIS, Contact Image Sensor, chip is a 300 dot per

inch resolution, linear array image sensor chip. The sensor chip is processed using a CMOS

Image Sensing Technology, a possession of ISPL (Image Sensor Product Line) group within

AMIS. Designed for cascading multiple chips in a series, the image sensor chips, uses a chip-

on-board process. They are bonded end-to-end on a printed circuit board (PCB). This

bonding process allows the CIS module manufacturers to produce variable CIS module

lengths in increments of the chip array lengths. Hence, the modules are easily applied in a

large number of document scanners, found in today’s facsimile market. Examples are wide

format maps and architectural drawings scanners down to the narrow width scanners, such

as, those found in check readers, lotto tickets, entrance gates tickets, etc. This is not to

exclude the many office automation equipments, which require an even more variety in

scanning widths, as well as, those with special mechanically configurations.

Figure 1 is a block diagram of the imaging sensor chip. Each sensor chip consists of 96 detector

elements, their associated multiplexing switches, buffers, and a chip selector. The detector's

element-to-element spacing is approximately 83.3 µm. The size of each chip without scribe lines is

8080 µm by 380 µm. Each sensor chip has 7 bonding pads. The pad symbols and functions are

described in Table 1.

8080 µm

380 µm

Row of 96 Sensors

and Video Signal

Multiplexers

Readout Shift Register

Buffer

Buffer

Chip

Select

Buffer

SP

CP VDD DGND

IOUT

AGND EOS

Figure 1. PI3041A Block Diagram

SYMBOL

FUNCTION

SP

Start Pulse: Input clock to start the line scan.

CP

Clock Pulse: Input clock to clock of the Shift Register.

VDD

Positive Supply: +5 volt supply connected to substrate.

DGND

Digital Ground: Connection topside common

IOUT

Signal Current Output: Output for video signal current

AGND

Analog Ground: Connection topside common

EOS

End of Scan Pulse: Output from the shift register at end of scan.

Table 1. Pad Symbols and Functions

Page 2 of 18 Date: 09/23/05