General Description

The ICS844246D is a Crystal-to-LVDS Clock Synthesizer/Fanout

Buffer designed for Fibre Channel frequencies and Gigabit Ethernet

applications. The output frequency can be set using the frequency

select pins and a 25MHz crystal for Ethernet frequencies, or a

26.5625MHz crystal for a Fibre Channel. The low phase noise

characteristics of the ICS844246D make it an ideal clock for these

demanding applications.

Features

• Six LVDS output pairs

• Crystal oscillator interface

• Output frequency range: 50MHz to 333.3333MHz

• Crystal input frequency range: 25MHz to 33.333MHz

• RMS phase jitter @ 125MHz, using a 25MHz crystal

(1.875MHz - 20MHz): 0.416ps (typical)

• Full 3.3V or mixed 3.3V core, 2.5V output supply modes

• 0°C to 70°C ambient operating temperature

• Available in lead-free (RoHS 6) package