GENERAL DESCRIPTION

The ICS84325 is a Crystal-to-3.3V LVPECL Frequency Synthesizer with Fanout Buffer and a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. The output frequency can be programmed using frequency select pins. The low phase noise characteristics of the ICS84325 make it an ideal clock source for Fibre Channel 1, Fibre Channel 2, Infiniband and Gigabit Ethernet applications.

FEATURES

• 6 differential 3.3V LVPECL outputs

• Crystal oscillator interface

• Output frequency range: 106.25MHz to 250MHz

• Crystal input frequency: 25MHz and 25.5MHz

• Output skew: 60ps (maximum)

• RMS phase jitter at 212.5MHz, using a 25.5MHz crystal (637KHz to 10MHz): 2.76ps

• Phase noise: Typical at 212.5MHz

Offset Noise Power

100Hz ................. -92 dBc/Hz

1KHz ................. -112 dBc/Hz

10KHz ................. -120 dBc/Hz

100KHz ................ -122 dBc/Hz

• 3.3V supply voltage

• 0°C to 70°C ambient operating temperature

• Lead-Free package available.

• Industrial temperature information available upon request