Overview

Description

The 84314 is a general purpose quad output frequency synthesizer. When the device uses parallel loading, the M bits are programmable and the output divider is hard-wired for divide by 2 thus providing a frequency range of 125MHz to 350MHz. In serial programming mode, the M bits are programmable and the output divider can be set for either divide by 2 or divide by 4, providing a frequency range of 62.5MHz to 350MHz. The low cycle-cycle jitter and broad frequency range of the 84314 make it an ideal clock generator for a variety of demanding applications which require high performance.

Features

  • Fully integrated PLL
  • 4 differential 3.3V or 2.5V LVPECL outputs
  • Selectable crystal oscillator interface or LVCMOS TEST_CLK input
  • Output frequency range: 62.5MHz to 350MHz
  • VCO range: 250MHz to 700MHz
  • Parallel interface for programming counter and output dividers during power-up
  • Serial 3 wire interface
  • Cycle-to-cycle jitter: 23ps (typical)
  • Output skew: 16ps (typical)
  • Output duty cycle: 49% < odc < 51%, fout <= 125MHz
  • Full 3.3V or mixed 3.3V core, 2.5V operating supply
  • Lead-Free package available
  • 0°C to 85°C ambient operating temperature

Comparison

Applications

Documentation

Design & Development

Models