AMIS-710200:200dpi CIS Module

Data Sheet

Figure 1: AMIS-710200 Block Diagram

Figure 2 shows a mechanical cross section of the module's internal structure. Mounted in the module is a number of components.

These components function together to provide the module a complete integrated system. The LED light bar illuminates the documents

through the window and reflection from the imaged documents is picked up and focused by the one-to-one graded indexed micro lens

array.

The lens, through the glass window, focuses the scanned images from the document onto the sensing plane of the sensor chips, which

is mounted on the PCB. During the imaging process, the document is passed across the glass window's surface.

The PCB not only has the sensor chips mounted on it, but it has an on-board amplifier, a clock buffer for both the start pulse (SP), and

the module's master clock (CP) buffer. This amplifier processes the pixel charges from the image sensor chips and converts them into

voltage signal to produce a sequential stream of video at the output pin of the AMIS-710200 module.

All these discussed components are housed in a small plastic housing which has a cover glass, the window. This housing with its

sealed windows protects the imaging array, the micro lens assembly and the LED light source from dust.

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AMI Semiconductor – May 06, M-8-001

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