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Femtoclocks™ Crystal-to-3.3V LVPECL Frequency Synthesizer W/Integrated Fanout Buffer
843246I
Data Sheet
GENERAL DESCRIPTION
The 843246I is a Crystal-to-3.3V LVPECL Clock Synthesizer/Fanout Buffer designed for Fibre Channel and Gigabit Ethernet applications and is a member of the family of High Performance Clock Solutions from IDT.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 843246I make it an ideal clock for these demanding applications.
SELECT FUNCTION TABLE Inputs
FB_SEL N_SEL1 N_SEL0 00 0 00 1 01 0 01 1 10 0 10 1 11 0 11 1
Function M Divide N Divide
20 2 20 4 20 5 20 8 24 3 24 4 24 6 24 12
M/N 10 5 4 2.
843246I Datasheet
