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ICS840001-31 Datasheet Crystal-to Lvcmos/lvttl Frequency Synthesizer

Manufacturer: Integrated Circuit Systems

Overview: PRELIMINARY Integrated Circuit Systems, Inc. ICS840001-31 FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/LVTTL FREQUENCY.

General Description

The ICS840001-31 is a two output LVCMOS/ LVTTL Synthesizer and a member of the HiPerClockS™ HiPerClocks TM family of high perfor mance devices from ICS.

One output is the LVCMOS/ LVTTL main synthesized clock output (Q) and one output is a three-state LVCMOS/LVTTL reference clock (REF_CLK) output at the frequency of the crystal oscillator.

The device can accept 26.5625MHz and 40MHz crystals and can synthesize 106.25MHz or 100MHz outputs.

Key Features

  • (2) LVCMOS/LVTTL outputs, 20Ω typical output impedence (1) Main clock output (Q) (1) Three-state reference clock output (REF_CLK).
  • Crystal oscillator interface can accept 26.5625MHz or 40MHz 18pF parallel resonant crystals.
  • Output frequency range: 106.25MHz or 100MHz.
  • VCO range: 490MHz to 640MHz.
  • RMS phase jitter @ 106.25MHz, using a 26.5625MHz crystal (637kHz - 10MHz): 0.38ps (typical).
  • 3.3V operating supply.
  • 0°C to 70°C ambient op.

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