Electronics depend on Frequency control devices to provide precise time and frequency. A vibrating quartz crystal / resonator is the heart-beat of all frequency control devices, source of precise frequency. It serves as the “flywheel” in atomic frequency standards, making it the most accurate entity known.
Time is important for determining sequence of events in systems, accessing and staging information through communication systems, for example. Frequency sources determine frequencies of radio and TV transmissions, radar systems, communication and navigation systems, etc. Control of the carrier frequency in the ‘spectrum’ was the driver of frequency control technology. Modern systems demand ever-higher clock accuracies. Surveillance systems require low noise oscillators. Portable systems require accuracies with minimal & efficient battery consumption, in the smallest possible encapsulation.
Frequency Control Devices link up to most if not all electronic development projects.