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Interface for office equipment

28.11.2006

Three-channel, 16-bit analog interface chip (analog front end, AFE) from National Semiconductor, according to the manufacturer, can significantly improve the performance of multifunctional devices (MFPs) focused on office use.

For example, color copy speeds are estimated by National Semiconductor to be in excess of 40 pages per minute. Operating at frequencies up to 45 MHz, the LM98714 is the first AFE to integrate a programmable time clock for charge-coupled devices (CCD) and contact image sensors (CIS), as well as a low-voltage serial interface with using difference signals (LVDS).

Today's high-speed copiers capable of making color copies are quite bulky and expensive. The LM98714 is expected to enable cost-effective and fast desktop-sized devices. The set of functions implemented in the microcircuit makes it possible to place the AFE directly on the CCD board, optimizing the design of the copier, reducing the level of electromagnetic interference and increasing its speed.

The LM98714 has the industry's best signal-to-noise ratio of 74dB and the industry's lowest power consumption of 505mW. It is expected that the novelty will find application in copiers, MFPs, devices for counting banknotes, scanners, faxes. The chip is available in a 48-pin TSSOP package.

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