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ICS844S0258-07 - Crystal/LVCMOS-toLVDS/LVCMOS Frequency Synthesizer

Datasheet Summary

Description

The ICS844S0258-07 is an eight output synthesizer optimized to generate Gigabit and 10 Gigabit Ethernet clocks.

Using a 25MHz, 18pF parallel resonant crystal, the device will generate 125MHz clocks with mixed LVDS and LVCMOS/ LVTTL output levels.

Features

  • Seven LVDS differential output at 125MHz One LVCMOS/LVTTL single-ended outputs at 125MHz.
  • Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input and PLL bypass from a single select pin.
  • Output enable signal for three LVDS outputs.
  • RMS phase jitter @ 125MHz, using a 25MHz crystal (1.857MHz - 20MHz): 0.278ps (typical.

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Datasheet Details

Part number ICS844S0258-07
Manufacturer IDT
File Size 472.72 KB
Description Crystal/LVCMOS-toLVDS/LVCMOS Frequency Synthesizer
Datasheet download datasheet ICS844S0258-07 Datasheet
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FemtoClock® Crystal/LVCMOS-toLVDS/LVCMOS Frequency Synthesizer ICS844S0258-07 DATASHEET General Description The ICS844S0258-07 is an eight output synthesizer optimized to generate Gigabit and 10 Gigabit Ethernet clocks. Using a 25MHz, 18pF parallel resonant crystal, the device will generate 125MHz clocks with mixed LVDS and LVCMOS/ LVTTL output levels. ICS844S0258-07 uses IDT’s 3rd generation low phase noise VCO technology and can achieve <1ps typical RMS phase jitter, easily meeting Ethernet jitter requirements. ICS844S0258-07 is packaged in a small, 32-pin VFQFN package that is optimum for applications with space limitations.
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