http://www.cardinalxtal.comThe term “frequency jitter” has become popular in the last few years to define the short-term stability of a frequency source. A ...

Silicon Laboratories has developed a clock multiplier for the port cards in telecoms switches that, in common with its other clock devices, is an all-CMOS design. The digital phase-locked loop (PLL) ...

The way time is measured is on the edge of a historic upgrade. At the heart of this change is a new kind of atomic clock that uses light instead of microwaves. This shift means timekeeping could ...

The next generation of atomic clocks “ticks” at the frequency of a laser. That is around 100,000 times faster than the microwave frequencies of the caesium clocks that currently generate the second.