Hot-selling and scarce IDT82V3255TFG8 Stratum Clock/Frequency Generator, Multiplexer IC 64-LQFP spot stock

Product Descriptions

The IDT82V3255 is an integrated, single-chip solution for the Synchronous Equipment Timing Source for Stratum 3, SMC, 4E and 4clocks in SONET /SDH equipments, DWDM and Wireless base station,such as GSM,3G,DSL concentrator,Router and Access Network applications 

The device supports three types of input clock sources: recoveredclock from STM-N or OC-n, PDH network synchronization timing andexternal synchronization reference timing .

Product Features

•     Provides an integrated single-chip solution for Synchronous Equip ment Timing Source,including Stratum 3,SMC,4E and 4 clocks

•     Employs DPLL and APLL to feature excellent jitter performance and minimize the number of the external components

•     Integrates T0 DPLL and T4 DPLL;T4 DPLL locks independently or locks to T0 DPLL

•     Supports Forced or Automatic operating mode switch controlled by an internal state machine; the primary operating modes are Free Run,Locked and Holdover

•     Supports programmable DPLL bandwidth (0 .1 Hz to 560 Hz in 11 steps)and damping factor (1.2 to 20 in 5 steps)

•     Supports 1 .1X10-5 ppm absolute holdover accuracy and 4 .4X10-8 ppm instantaneous holdover accuracy

•     Supports PBO to minimize phase transients on T0 DPLL output to be no more than 0.61 ns

•     Supports  phase  absorption when  phase-time  changes  on  T0 selected input clock are greater than a programmable limit over an interval of less than 0.1 seconds

•     Supports programmable input-to-output phase offset adjustment

•     Limits the phase and frequency offset of the outputs

•     Supports manual and automatic selected input clock switch

Product Applications

•     BITS /SSU

•     SMC /SEC (SONET /SDH)

•     DWDM cross-connect and transmission equipments

•     Central Office Timing Source and Distribution

•     Core and access IP switches /routers

•     Gigabit and Terabit IP switches /routers

•     IP and ATM core switches and access equipments

•     Cellular and WLL base-station node clocks

•     Broadband and multi-service access equipments

•     Any other telecom equipments that need synchronous equipment system timing

Product Specifications

Product Photos

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