AST3TQ-T-19.440MHZ-50-SW-T5

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Oscillators

Oscillators, also known as electronic oscillators, are electronically generated resonant circuits capable of creating a clock, a signal, or a waveform. They are widely used in various applications, ranging from electronic test equipment to consumer electronics and computing.

AST3TQ-T-19.440MHZ-50-SW-T5 Application Field

AST3TQ-T-19.440MHZ-50-SW-T5 is a type of oscillator designed for use in RF and IF applications. It can be used in the design of new transceivers, receivers, and amplifiers, as well as in other related applications. This oscillator provides high-stability tuning over a wide temperature range with frequency accuracy of +/- 10 ppm.

It can also be used in broadband amplification and signal-conditioning applications. This includes cellular base stations, remote-control systems, consumer video, and other telecommunication systems. In addition, it can be used in commercial and military communications systems, as well as automotive, medical, and industrial control systems.

AST3TQ-T-19.440MHZ-50-SW-T5 Working Principle

The AST3TQ-T-19.440MHZ-50-SW-T5 has a basic circuit configuration that is based on a combination of a Colpitts and Hartley oscillator. Improving on this basic design, the device employs the advanced technology of temperature-compensated crystal oscillators (TCXO) to increase its frequency stability over a wide range of environmental conditions.

At its core, the device utilizes a quartz crystal resonator with a frequency of 19.440 MHz. This crystal is mounted on a brass plate and extends its electrical contacts to the circuitry. Additionally, the crystal is surrounded by a temperature-compensating network, which is composed of two resistors and two capacitors. This network ensures that the oscillator operates with a constant frequency over a wide range of temperatures.

The two-stage amplifier also plays an important role in the operation of the oscillator. The amplifier boosts the output of the crystal to drive the radio frequencies required for most applications. Finally, the design includes an output filter, which helps reduce spurious and harmonic signals.

Conclusion

The AST3TQ-T-19.440MHZ-50-SW-T5 is a very reliable and robust oscillator designed for applications that require a high degree of frequency stability and accuracy. With its wide range of applications and its impressive temperature compensation, it is an ideal choice for a variety of radio frequency and signal processing applications.

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