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DP83241 - CDD Device

Datasheet Summary

Description

The CDD device is a clock generation and distribution device intended for use in FDDI (Fiber Distributed Data Interface) networks The device provides the complete set of clocks required to convert byte wide data to serial format for fiber medium transmission and to move byte wide data between the PL

Features

  • Y Y Y Y Y Y Y Y Y Provides 12 5 MHz and 25 MHz TTL clocks 12 5 MHz and 125 MHz ECL clocks 5 phase TTL local byte clocks eliminate clock skew problems in concentrators Internal VCO requires no varactors coils or adjustments Option for use of High Q external VCO 125 MHz clock generated from a 12 5 MHz crystal External PLL synchronizing reference for concentrator configurations 28-pin PLCC package BiCMOS processing TL F 10385.
  • 1 FIGURE 1-1 FDDI Chip Set Block Diagram TRI-STATE is a.

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