SSPT7F-7PF20PPM

Crystals

Crystals have been an integral part of electronics ever since they were first invented in the early 1900s. They have become increasingly important to modern-day applications as technology advances to offer higher performance, higher reliability, and greater energy efficiency. The SSPT7F-7PF20PPM crystal is one such example of a crystal used in today’s applications.

Application Field

The SSPT7F-7PF20PPM crystal is a small, quartz crystal used primarily in frequency domains up to 200MHz and on frequencies near 7/14/20 PPM. With a frequency tolerance of ±20ppm and an operating temperature range of -20°C to +70°C, it is optimum for use in mobile, automotive, consumer electronics and computer networking applications. It is often used in RF circuits because of its ability to provide crisp, stable signals over a wide frequency range.

Working Principle

The SSPT7F-7PF20PPM is an AT-cut crystalf. It is constructed of two quartz plates cut and mounted with electrodes on either side. The plates are positioned along the X and Y axes of the crystal and sandwiched together, with a small gap between the plates. When a voltage is applied to the plates through the electrodes, a force is exerted between them, producing oscillations along the X-Y axes. This vibration then produces a frequency, which is determined by the positioning of the electrodes and the thickness of the quartz plate. This frequencyis then used to generate an output, as in an oscillator circuit.

Uses

One of the most common uses for the SSPT7F-7PF20PPM is to provide a stable frequency reference for oscillators such as those found in radio transmitter and receiver circuits. The oscillator circuit consists of amplifying circuitry and the crystal, which generates the reference frequency. This frequency is then used by the oscillator to create a stable, accurate output signal. The SSPT7F-7PF20PPM is also used in digital circuits such as CPUs, FPGAs and ASICs, as well as in voltage controlled oscillators (VCOs), transceivers, cellular phones and GPS receivers.

Conclusion

Crystals like the SSPT7F-7PF20PPM are used in a variety of applications to provide accurate frequency references or timing signals. By combining two quartz plates positioned along the X-Y axes and applying a voltage, the crystal vibrates along the same axes, generating a stable frequency. The frequency is then used to generate an output for oscillator circuits, digital circuits, VCOs and transceivers. Crystals are an essential component of today’s electronics and offer improved performance, reliability and energy efficiency.