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16bit AFE speeds up SOHO operations

Posted: 01 Apr 2008 ?? ?Print Version ?Bookmark and Share

Keywords:3-channel? 16bit analog front end? multi-functional peripherals? small office? home office environment?

S7R77024

Seiko Epson Corp. has announced a 3-channel, 16bit analog front end (AFE) capable of speeds up to 75MSps and higher copying speeds for multifunctional peripherals in the small office/home office (SOHO) environment. Volume production of this new product is expected to commence at the end of Q1 08, with a projected output of more than 50,000 units per month.

The S7R77024 incorporates a high-performance timing generator capable of controlling various types of CCD and conductor image sensors, and an LVDS output function for image data output. Furthermore, Epson's own built-in automatic offset and gain adjustment function enables ideal values to be easily set for input to each of the three channels independently.

Wide range
Although the S7R77024 is a 3-channel product, it can be used with one or two channels, making it suited to a wide variety of equipment, ranging from monochrome copying machines to color copying machines. For these applications, the sampling rate (ADC rate) is 25MSps for one channel; 50MSps for two channels; and 75MSps for three channels. Moreover, as the image data format of the LVDS output can be changed as needed, the S7R77024 facilitates the development of systems by making possible the use of various elements such as enabling connection with existing SoC.

Incorporating these functions in the S7R77024 enables the MFP to achieve high reading speeds in excess of 40 sheets per minute for color, reduces EMI, and makes it possible to provide a platform applicable to monochrome copying machines as well as color copying machines, thereby significantly contributing to the development of systems.

Companion chip
In conjunction with the release of the S7R77024, Epson will provide the S1R77084 LVDS channel link receiver as a companion chip to the product. The S1R77084 is a QFP-48-pin package that converts three LVDS data streams back into 21bit CMOS/TTL data to enable interfacing with SoC. Using the S1R77084 together with the S7R77024 will substantially reduce EMI and the number of cables needed in the data transfer unit, and also improve the reliability of data transfer.





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