PI6LC48C21LEX

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PI6LC48C21LEX is a highly integrated clock source product which is used in the Clock/Timing - Application Specific category. The product combines an oscillator and voltage controlled crystal oscillator (VCXO) into one chip, enabling customers to reduce the cost and time spent on system design. Also, due to its low power consumption, small size, and compatibility with multiple output formats, it is ideal for applications in the space industry.

The PI6LC48C21LEX application field is mainly space applications in satellites, vehicles, and aircraft, because it is designed to meet the rigorous space environment requirements and high accuracy. Besides, it can also be used in other general timing applications, such as telecommunications, automotive, industrial, and medical equipment.

The working principle of PI6LC48C21LEX is based on a quartz-crystal-based VCXO, implemented with a MEMS-based oscillator integrated core. A VCXO is a type of oscillator that is controlled by an input voltage from 0V to 6V, allowing the frequency to be coarsely adjusted over a wide range.The advantage of a dual-crystal oscillator is that the two frequencies (f1 and f2) will never drift apart over time.

The first crystal (f1) is stabilized by a temperature compensated bond wire that ensures the crystal remains within its specified frequency accuracy range. The second crystal (f2) is used to control the frequency of the VCXO, providing the fine frequency accuracy. An on-chip loop filter creates a low jitter (low phase noise) clock, meeting the requirements of most communication applications.

The oscillator voltage is modulated by the input voltage which controls the oscillator frequency. This feature allows customers to use off-the-shelf components in their system, instead of having to design a custom oscillator for their specific requirements. In addition, the oscillator has an instant on-off feature, allowing the system to remain in a low power state until an input voltage is supplied.

With a wide range of frequencies (20-160MHz) available and an integrated loop control, PI6LC48C21LEX is suitable for space applications such as spacecraft and satellite systems. It also offer a low power consumption for mobile and wearable applications, and its small size makes it ideal for size critical applications. Customers can take advantage of the PI6LC48C21LEX product to reduce design cost, improve system accuracy and reliability.

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