Stable, accurate reference frequencies are basic to almost all digital electronics. The most common references combine quartz crystals with clock-generator circuits, often employing a PLL ...

The quartz crystal is our go-to standard when we need an affordable, known, and stable clock frequency for our microprocessors and other digital circuits. Perhaps it’s time we took a closer look at it ...

The DS1339B serial real-time clock (RTC) is a low-power clock/date device with two programmable time-of-day alarms and a programmable square-wave output. Address and data are transferred serially ...

Quartz is one of the purest minerals known. Nevertheless, tiny amounts of impurities have an important effect on this crystalline form of silicon dioxide. The delicately hued type of natural quartz ...

I go to sleep every night right after setting several alarms to ensure I actually get my ass out of bed at a reasonable time every day; I wake up every morning to my iPhone’s “Radar” alarm sound ...