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ICS843021 - FEMTOCLOCKS CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR

General Description

The ICS843021 is a Gigabit Ethernet Clock Generator and a member of the HiPerClocksTM HiPerClockS™ family of high performance devices from ICS.

The ICS843021 uses a 25MHz crystal to synthesize 125MHz.

20MHz integration

Key Features

  • 1 differential 3.3V LVPECL output.
  • Crystal oscillator interface designed for 22.4MHz - 28MHz, 18pF parallel resonant crystal.
  • Output frequency range: 112MHz - 140MHz.
  • VCO range: 560MHz to 700MHz.
  • Output duty cycle range: 49% - 51%.
  • RMS phase jitter @ 125MHz, using a 25MHz crystal (1.875MHz - 20MHz): 0.37ps (typical).
  • RMS phase noise at 125MHz (typical) Offset Noise Power 100Hz -94.2 dBc/Hz 1KHz -122.8 dBc/Hz 10KHz -132.2 dBc/Hz 1.

📥 Download Datasheet

Datasheet Details

Part number ICS843021
Manufacturer Integrated Circuit Systems
File Size 217.27 KB
Description FEMTOCLOCKS CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR
Datasheet download datasheet ICS843021 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Integrated Circuit Systems, Inc. www.DataSheet4U.com ICS843021 FEMTOCLOCKS™ CRYSTAL-TO3.3V LVPECL CLOCK GENERATOR FEATURES • 1 differential 3.3V LVPECL output • Crystal oscillator interface designed for 22.4MHz - 28MHz, 18pF parallel resonant crystal • Output frequency range: 112MHz - 140MHz • VCO range: 560MHz to 700MHz • Output duty cycle range: 49% - 51% • RMS phase jitter @ 125MHz, using a 25MHz crystal (1.875MHz - 20MHz): 0.37ps (typical) • RMS phase noise at 125MHz (typical) Offset Noise Power 100Hz ............... -94.2 dBc/Hz 1KHz .............. -122.8 dBc/Hz 10KHz .............. -132.2 dBc/Hz 100KHz .............. -131.3 dBc/Hz • 3.