Microsemi ZL30254
Clock Multiplier and Jitter Attenuator
FEATURES
Input Clocks● Two CMOS inputs, both 8kHz or 25MHz
● Inputs continually monitored for frequency accuracy (±1%)
● Automatic revertive reference switching Low-Bandwidth DPLL
● 25Hz bandwidth for jitter attenuation
● ±120ppm tracking range
● Digital hold on loss of all inputs Clock Multiplier APLL and Output Clocks
● Easy-to-configure, encapsulated design requires no external VCXO or loop filter components
● Two CML outputs, both 125MHz or 156.25MHz
● Outputs easily interface with CML, LVDS or LVPECL components
● Output jitter <1ps RMS (12kHz-20MHz) ZL30254 2-In, 2-Out 8kHz/25MHz to 125/156.25MHz Clock Multiplier and Jitter Attenuator Data Sheet April 2016 Ordering Information ZL30254LDG1 ZL30254LDF1 32 Pin QFN Trays 32 Pin QFN Tape and Reel Matte Tin Package size: 5 x 5 mm -40C to +85C
GENERAL FEATURES
● Operates from low-cost 49.152MHz fundamental-mode crystal● Status output pins indicate selected input clock, holdover, and locked/unlocked states
● Input clock selection cont...