What this PLL clock generator does for a high-speed system
The LTC6952IUKG#PBF integrates a PLL synthesizer with an 11-output CML fanout buffer, all in a single 52-QFN (7x8 mm) package. It accepts one differential input and distributes up to eleven CML clock copies at frequencies up to 4.5 GHz. The 1:11 fanout ratio means a single reference oscillator can feed multiple ADC/DAC clocks, SERDES reference lanes, or FPGA transceiver banks without adding external distribution ICs. The CML output type is the usual choice for high-speed serial links because its constant-current swing keeps jitter low.
Temperature range and supply rail
The supply range is 3.15 V to 3.45 V — a tight window that demands a clean 3.3 V rail with ±5 % regulation.
Lifecycle and compliance
ROHS3 compliant.