EDN

Perfect timing: performing clock division with jitter and phase-noise measurements

When measuring ultra-low-jitterdevices and equipment,engineers must constantly askwhether the measurement valuesare from the DUT (device undertest) or from the test equipment.Engineers are also always ...
Hackaday

Ask Hackaday: Is Your Clock Tied To Mains Frequency?

Earlier in March we heard about a quirk of the interconnected continental European electricity grid which caused clocks to lose about six minutes so far this year. This was due to a slight dip in the ...
Electronic Design

Measure Spread-Spectrum Clock’s Effects On Switching Supply EMI

Fig 1. In a typical PWM controller in which the active devices are driven by a simple square wave, a Fourier representation of the clock’s frequency spectrum consists of the fundamental switching ...
Hackaday

mains frequency clock

Earlier in March we heard about a quirk of the interconnected continental European electricity grid which caused clocks to lose about six minutes so far this year. This was due to a slight dip in the ...
Electronic Design

Measuring digital clock stability and jitter with an oscilloscope

Clocks are the heartbeats of embedded systems, providing timing references and synchronization between components, subsystems, and entire systems. Incorrect clock signal amplitudes and timing can ...