GENERAL DESCRIPTION

The ICS85357-11 is a 4:1 or 2:1, Crystal Oscillator-to-3.3V LVPECL / ECL Multiplexer and is a member of the HiPerClockS? family of High Performance Clock Solutions from ICS. The ICS85357-11 has 4 selectable crystal inputs.

FEATURES

? 1 differential 3.3V LVPECL output

? 4:1 or 2:1 Crystal Oscillator Multiplexer

? Supports parallel resonant crystals with a frequency range

of 10MHz to 27MHz. The oscillator circuit is optimized for

parallel resonant mode, and will require external capacitance

? Maximum output frequency: 27MHz

? LVCMOS/LVTTL SEL0 and SEL1 inputs have

internal pulldown resistors

? LVPECL mode operating voltage supply range:

VCC = 3.135V to 3.465V, VEE = 0V

? ECL mode operating voltage supply range:

VCC = 0V, VEE = -3.135V to -3.465V

? 0°C to 70°C ambient operating temperature

? Industrial temperature information available upon request