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| Magnum Announces MS3900 Front-End Processor for Optical Drives Magnum Semiconductor has announced the new MS3900 Front-End Processor for DVD recorders and players. The MS3900 provides optical disk data and servo processing on a single chip, performing DVD encoding, DVD and CD decoding, and servo control functions. During read operations, the on-chip digital PLL (phase-locked loop) provides high data-recovery rates with EFM and EFM+ demodulation. During write operations, the on-chip DLL (delay-locked loop) provides write-strategy while the PLL provides write clock generation. The MS3900 includes on-chip AD and DA (analog-to-digital, and digital-to-analog) converters. The architecture makes use of a proprietary DSP (digital signal processor), and built-in RAM (random access memory) for servo control programming, to enhance the flexibility of the servo control function. The MS3900 provides a full ATAPI interface, as well as a direct host bus interface for popular multimedia back-end processors such as Magnum's MS9400 family. The direct host bus interface allows the front end and back end tasks to be integrated into mono-board systems which reduce product costs by eliminating the separate optical drive controller board with its CPU and memory. The MS3900 works with optical pick-up units from multiple vendors including Hitachi and Samsung. In addition the MS3900 provides CSS and CPRM keys for digital rights management. write your comments about the article :: © 2007 Computing News :: home page |