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CY2XP311: 312.5 MHz LVPECL Clock Generator | Cypress Semiconductor

CY2XP311: 312.5 MHz LVPECL Clock Generator

Last Updated: 
Aug 26, 2015

312.5 MHz LVPECL Clock Generator


  • One LVPECL Output Pair
  • Output Frequency: 312.5 MHz
  • External Crystal Frequency: 25 MHz
  • Low RMS Phase Jitter at 312.5 MHz, using 25 MHz crystal (1.875 MHz to 20 MHz): 0.3 ps (typical)
  • Pb-Free 8-Pin TSSOP Package
  • Supply Voltage: 3.3V or 2.5V
  • Commercial and Industrial Temperature Ranges

Functional Description

The CY2XP311 is a PLL (Phase Locked Loop) based high performance clock generator. It is optimized to generate 10 Gb Ethernet, SONET, and other high performance clock frequencies. It also produces an output frequency that is 12.5 times the crystal frequency. It uses Cypress’s low noise VCO technology to achieve 0.3 ps typical RMS phase jitter, which meets both 10 Gb Ethernet and SONET jitter requirements. The CY2XP311 has a crystal oscillator interface input and one LVPECL output pair.