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Crystals

Crystals are present in nature and many items like watches, microwave ovens and cell phones have them embedded in them as an integral part of their functionalities. Various types of crystals are used in different real-world applications like frequency and timing generation.

ECS-121-S-4 is one such type of crystal, which is a 4-pin miniaturized quartz crystal with an overall size of 10.8*3.3(mm). Its unique design enables it to be used in a wide range of applications. This includes but is not limited to compensating frequency errors of devicess like cell phones, PDA and lots more.

Application Field

ECS-121-S-4 is mainly used in 3G communications like GSM/CDMA/WCDMA mobile phones, PDAs, notebooks, media players, and other wireless communication devices. It is also often used in wireless charging receivers and wireless power transmitters. The crystal ensures proper synchronization and efficient transmission of data in the three-dimensional mode.

The crystal’s frequency stability, waveform, and temperature characteristics are suitable for long-term operation in GSM/CDMA/WCDMA mobile phones. It is also very useful in applications requiring miniaturization characteristics with a high frequency tolerance.

Working Principle

The principle behind the working of ECS-121-S-4 crystal is simple. It is basically a piezoelectric crystal which vibrates at a certain frequency when an electric field is applied to it. This vibration helps in maintaining proper synchronization and efficient transmission of data in the three-dimensional mode.

The crystal is made up of two pieces of quartz and has a silver frame around it. When electric field is applied to it, the quartz pieces starts to vibrate. Its frequency is determined by the size of the crystal and how it is cut. The cut of the crystal should be such that the crystal has a resonance at the desired frequency. The overall frequency stability, waveform and temperature characteristics depend on the size of the crystal and the shape of the cut.

The ECS-121-S-4 quartz crystal has four pins, which are connected to the amplifier or processor to facilitate the transmission of data from and to the crystal. The pins are used as input and output lines. The first pin is the ground, the second and third are for VCC and the fourth is for the frequency output.

In summary, ECS-121-S-4 is a quartz crystal with four pins, which is mainly used in 3G communications to achieve accurate frequency generation and efficient transmission of data. It consists of two pieces of quartz and operates on the principle of piezoelectricity.

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