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ICS840N021I-01 - Clock Synthesizer

Description

The ICS840N021I-01 is a LVCMOS/LVTTL clock synthesizer designed for Ethernet applications.

The device generates a 125MHz clock signal from a 25MHz crystal with excellent phase jitter performance.

Features

  • Fourth generation FemtoClock® NG technology.
  • 125MHz output clock synthesized from a 25MHz fundamental mode crystal.
  • One 2.5V or 3.3V LVCMOS/LVTTL clock output.
  • Crystal interface designed for 25MHz, 12pF parallel resonant crystal.
  • RMS phase jitter @ 125MHz, using a 25MHz crystal (1.875MHz - 20MHz): 0.151ps (maximum).
  • RMS phase jitter @ 125MHz, using a 25MHz crystal (12kHz - 20MHz): 0.478ps (maximum).
  • LVCMOS/LVTTL interface level for.

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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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FemtoClock® NG Crystal-to-LVCMOS/LVTTL ICS840N021I-01 Clock Synthesizer DATA SHEET General Description The ICS840N021I-01 is a LVCMOS/LVTTL clock synthesizer designed for Ethernet applications. The device generates a 125MHz clock signal from a 25MHz crystal with excellent phase jitter performance. The device uses IDT’s fourth generation FemtoClock® NG technology for an optimum of high clock frequency, low phase noise performance and low power consumption.The device supports 2.5V or 3.3V voltage supply and is packaged in a small, lead-free (RoHS 6) 8-lead TSSOP package. The extended temperature range supports wireless infrastructure, telecommunication and networking end equipment requirements. Frequency Table fXTAL (MHz) 25 30.72 Output Frequency (MHz) 125 153.
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