843246I
843246I is Crystal-to-3.3V LVPECL Frequency Synthesizer W/Integrated Fanout Buffer manufactured by IDT.
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 2.5 8 6 4 2
FEATURES
- Six LVPECL outputs
- Crystal oscillator interface
- VCO range: 490MHz to 680MHz
- Crystal input frequency range: 25MHz to 33.333MHz
- RMS phase jitter at 125MHz, using a 25MHz crystal (1.875MHz...
