HomedatasheetMC88915FN55

MC88915FN55 Datasheet

Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers
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Description

The MC88915FN55 Clock Driver utilizes phase&ndash;locked loop technology to lock its low skew outputs&rsquo; frequency and phase onto an input reference clock. It is designed to provide clock distribution for high performance PC&rsquo;s and workstations. The PLL allows the high current, low skew outputs to lock onto a single clock input and distribute it with essentially zero delay to multiple components on a board. The PLL also allows the MC88915FN55 to multiply a low frequency input clock and distribute it locally at a higher (2X) system frequency. Multiple MC88915FN55&rsquo;s can lock onto a single reference clock, which is ideal for applications when a central system clock must be distributed synchronously to multiple boards. MC88915FN55 Features &bull; Five Outputs (QO&ndash;Q4) with Output&ndash;Output Skew < 500 ps each being phase and frequency locked to the SYNC input&bull; The phase variation from part&ndash;to&ndash;part between the SYNC and FEEDBACK inputs is less than 550 ps (derived from the tPD specification, which defines the part&ndash;to&ndash;part skew)&bull; Input/Output phase&ndash;locked frequency ratios of 1:2, 1:1, and 2:1 are available&bull; Input frequency range from 5MHz &ndash; 2X_Q FMAX spec&bull; Additional outputs available at 2X and +2 the system &ldquo;Q&rdquo; frequency. Also a Q (180&deg; phase shift) output available&bull; All outputs have &plusmn;36 mA drive (equal high and low) at CMOS levels, and can drive either CMOS or TTL inputs. All inputs are TTL&ndash;level compatible&bull; Test Mode pin (PLL_EN) provided for low frequency testing. Two selectable CLOCK inputs for test or redundancy purposes
Features

Parameters

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Manufacturer information

SEIKO INSTRUMENTS

Seiko Instruments Inc. Is a Japanese company which head office is located in 8, Nakase 1-chome, Mihama-ku, Chiba-shi, Chiba 261-8507, Japan . It’s business lines are: Watches Business Watches, Watch Movements Electronic Components Business Quartz crystals, Micro batteries, etc. Precision Mechatronics Business Inkjet printer heads, Hard disk components, Thermal printers, Compact precision components, Machine tools, FA, Musical instrument accessories, Radiation detection and measurement systems, etc.


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