A vision chip for optical wireless LAN : verification of basic operations

Abstract

We proposed and designed a new vision chip (CMOS image sensor with intelligent functions) for optical wireless LAN( local area network) system using 0.8μm BiCMOS process, and demonstrated it's basic operations. We fabricated an 8×8 pixel array chip, and demonstrated that it works both in the APS (active pixel sensor) mode and in the high speed focused readout mode. The fabricated test pixel circuit with TZ (trans-impedance) amplifiers shows that -3dB bandwidth was 200MHz.