416F240X2AAR

Crystals: 416F240X2AAR Application Field and Working Principle

The 416F240X2AAR is a miniature, low-skew, SYCLK crystal quartz oscillator used in precision frequency applications. Although it appears as an innocent “black box” on the outside of the printed circuit board (PCB), the 416F240X2AAR oscillator is based on an intricate principle of crystals that require both a physical force and electrical stimulation. It is essential to understand the design and working principles of such a crystal oscillator in order to gain insight into its many application fields.

Physical Properties of Crystal Quartz

Crystal quartz is a mineral composed of silicon dioxide SiO2. It exists in three naturally occurring states: trigonal, hexagonal and rhombohedral. Trigonal crystals are the most abundant and are used to produce quartz oscillators. Quartz crystals are power dividers that allow energy from an electrical source to be divided, making it possible to generate a precise and continuous frequency. The physical nature of quartz crystal oscillators is their ability to generate an electrical voltage with a precise frequency when stimulated by a small electric field.

Design of 416F240X2AAR

The 416F240X2AAR is a crystal oscillator designed for precision frequency applications. Its small size and specific design features, including a low-skew characteristic, make it suitable for precise timing in the most demanding applications. It has the following design features: a 5MHz through-hole SMD mount, a thin 2mm profile, an extremely low current consumption of 10μA and an extremely low operating temperature range of –40°C to 85°C.

Frequency Generation

The frequency of the 416F240X2AAR oscillator is determined by the quartz crystal’s resonance frequency (often referred to as the “cut”). The resonance frequency is determined by the physical properties of the quartz, i.e. its shape, size and cut angle, and is typically in the range from 4MHz to 40MHz. The oscillator generates its frequency by applying an electric field to the quartz crystal and driving it to oscillate at its resonant frequency. This resonant frequency is then used to generate a precise, continuous frequency.

Applications

The 416F240X2AAR oscillator is suitable for use in precision timing applications, such as frequency synthesisers, phase-locked loops and frequency dividers. Its low-skew characteristics make it well suited for high-precision timing applications, such as the synchronisation of multiple processors or peripheral components. The oscillator is also used in a variety of communication and broadcast applications, such as clock recovery, timing recovery and time code generation.

Conclusion

The 416F240X2AAR oscillator is a miniature, low-skew SYCLK crystal quartz oscillator. It draws its power from a small electric field applied to its quartz crystal and is used in precision frequency applications. It is suitable for use in a variety of applications, including frequency synthesisers, phase-locked loops, frequency dividers, clock recovery, timing recovery, and time code generation.