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841608 Datasheet Crystal-to-HCSL Clock Generator

Manufacturer: Renesas

Overview: FemtoClock® Crystal-to-HCSL Clock Generator 841608 Datasheet.

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General Description

The 841608 is an optimized PCIe and sRIO clock generator.

The device uses a 25MHz parallel crystal to generate 100MHz and 125MHz clock signals, replacing solutions requiring multiple oscillator and fanout buffer solutions.

The device has excellent phase jitter (< 1ps rms) suitable to clock components requiring precise and low-jitter PCIe or sRIO or both clock signals.

Key Features

  • Eight HCSL outputs: configurable for PCIe (100MHz) and sRIO (125MHz) clock signals.
  • Selectable crystal oscillator interface, 25MHz, 18pF parallel resonant crystal or LVCMOS/LVTTL single-ended reference clock input.
  • Supports the following output frequencies: 100MHz or 125MHz.
  • VCO: 500MHz.
  • PLL bypass and output enable.
  • PCI Express (2.5 Gb/S) and Gen 2 (5 Gb/s) jitter compliant.
  • RMS phase jitter at 125MHz, using a 25MHz crystal (1.875M.

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