Description
The Si5323 is a jitter-attenuating precision clock multiplier for high-speed communication systems,
including SONET OC-48/OC-192, Ethernet, and Fibre Channel. The Si5323 accepts dual clock inputs ranging from 8 kHz to 707 MHz and generates two equal frequency-multiplied clock outputs ranging from 8 kHz to 1050 MHz. The input clock frequency and clock multiplication ratio are selectable from a table of popular SONET, Ethernet, and Fibre Channel rates.

FEATUREs
„ Selectable output frequencies ranging from 8 kHz to 1050 MHz
„ Ultra-low jitter clock outputswith jitter generation as low as 0.3 ps rms (50 kHz–80 MHz)
„ Integrated loop filter with selectable loop bandwidth (60Hz to 8.4kHz)
„ Meets OC-192 GR-253-COREjitter specifications
„ Dual clock inputs w/manual or automatically controlled hitless switching
„ Dual clock outputs with selectable signal format (LVPECL, LVDS, CML, CMOS)
„ Support for ITU G.709 FEC ratios (255/238, 255/237, 255/236)
„ LOL, LOS alarm outputs
„ Pin-controlled output phase adjust
„ Pin-programmable settings
„ On-chip voltage regulator for 1.8, 2.5, or 3.3 V ±10% operation
„ Small size: 6 x 6 mm 36-lead QFN
„ Pb-free, ROHS compliant

APPLICATIONs
„ SONET/SDH OC-48/OC-192 line cards
„ GbE/10GbE, 1/2/4/8/10GFC line cards
„ ITU G.709 line cards
„ Optical modules
„ Test and measurement