NORWOOD, Mass.--Analog Devices Inc. here and Fuji Photo Film Co. Ltd. of Japan have co-developed a new charged-coupled-device (CCD) signal processor, which the companies say improves sharpness and clarity in digital cameras while prolonging battery life.
Analog Devices said it worked with Fujifilm to develop an advanced imaging architecture that integrates a timing generator and 12-bit converter with the company's PxGA technology. Analog Devices' PxGA is a proprietary analog frontend technology that integrates high-performance functions onto a single chip for increased system performance and efficiency.
The PxGA technology equalizes the signal level for each color channel at the full read-out rate of the CCD, said Analog Devices. This capability enables each pixel value to be accurately placed at the optimum value required for sampling by the analog-to-digital converter, according to the Norwood company.
The result, said Analog Devices, is crisp and accurate colors without requiring complex digital processing. This capability will allow system designers more time to concentrate on value-added system features rather than dealing with weaknesses inherent in CCD imagers, said the company.
Fuji Photo Film is using the PxGA technology in its recently FinePix4700Z camera. "Analog Devices' PxGA technology enables Fujifilm's digital camera to achieve a fully integrated 12-bit analog front-end (AFE), and has greatly improved the performance and picture quality of our digital cameras," said Shozo Iijima, executive general manager of the Electronic Imaging Products Division of Fuji Photo Film. "Offering our customers this advanced picture technology is giving Fujifilm a competitive advantage in the rapidly expanding digital camera market."