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特性

  • Six 3.3V differential LVPECL output pairs
  • Output frequency range: 62.5MHz to 625MHz
  • Crystal input frequency range: 15.625MHz to 25.5MHz
  • RMS phase jitter at 156.25MHz, using a 25MHz crystal (1.875MHz to 20MHz): 0.41ps (typical) @ 3.3V
  • Operating supply modes:
    Core/Output
    3.3V/3.3V
    3.3V/2.5V
  • 0°C to 70°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

描述

The 843256 is a Crystal-to-3.3V LVPECL clock synthesizer/fanout buffer designed for Fibre Channel and Gigabit Ethernet applications. The output frequency can be set using the frequency select pins and a 25MHz crystal for Ethernet frequencies, or a 19.44MHz crystal for SONET. The low phase noise characteristics of the 843256 make it an ideal clock for these demanding applications.

Part NumberStatusSamplesStockPackageLead Count (#)Carrier TypeMoisture Sensitivity Level (MSL)Qty. per Reel (#)Qty. per Carrier (#)Pb (Lead) FreePb Free CategoryTemp. Range (°C)
843256BGLFObsoleteN/AIn StockTSSOP24#Tube1062#Yese3 Sn0 to 70°C
843256BGLFTObsoleteN/AOut of StockTSSOP24#Reel12500#0Yese3 Sn0 to 70°C
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