N8519WT

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N8519WT is a narrow-band frequency synthesizer. It is widely used in civil aviation, radio spectrum management, communications receiver and some other high-performance RF system fields. It has extremely narrow bandwidth, adjustable frequency step, wide frequency coverage and the function of noninterfering with adjacent channels. Due to these excellent characteristics, it has the function of receivers for test and research. This article will introduce the application field and working principle of the N8519WT in detail.

Application Field of N8519WT

N8519WT is a narrow-band frequency synthesizer which is mainly used in civil aviation fields. It is an indispensable component in ground station equipment module. The comprehensive use of N8519WT in this field is mainly attributed to its extreme narrow bandwidth and adjustable step frequency. The transmission signal of civil aviation thanks to this device is very strong which makes it very reliable. In addition, the signal transmission of ground station equipment is very effective. With the help of the step frequency, the selection of the transmitting frequency is very accurate and so the reliability of the transmission signal is greatly improved. Besides, it is also widely used in radio spectrum management.

The low power consumption of the N8519WT is also an advantage for radio spectrum management. As we all know, in the radio spectrum, interference and cross point of signal become more and more serious. With the help of the N8519WT, the power consumption of the spectrum can be greatly improved. The interference and cross point of the signal will be effectively reduced and so the signal transmission range of the spectrum will also be effectively extended. In some high-end receiver system, the interference and cross point of signal can also be eliminated while using the N8519WT.

Working Principle of N8519WT

The N8519WT is mainly composed of a phase-locked loop, a voltage-controlled oscillator, an automatic frequency control loop and a frequency synthesizer. Firstly, the oscillator in the loop produces an output signal directly from the crystal frequency. Secondly, this output signal is amplified and divided by digital dividers in the circuit, and the output frequency of each divider is varied by the voltage-controlled oscillator to facilitate the control of the total frequency. Thirdly, the frequency control loop controls the frequency deviation of the signal output by the voltage-controlled oscillator, and the reference signal required for the frequency control is provided by the signal of the first frequency divider in the loop.

Finally, the frequency synthesizer works by using the digital signal generated by the frequency control loop. By using the frequency between the two fixed frequency signals, the frequency of the synthesizer can be adjusted, and thus the desired frequency can be obtained. Therefore, the frequency synthesizer can realize the frequency control on a narrow-band frequency range.

In conclusion, the N8519WT is a narrow-band frequency synthesizer which is mainly used in communication receivers, radio spectrum management and some other high-performance RF systems. It has excellent features such as low power consumption, maximum frequency stability and wide frequency coverage. What\'s more, its working principle mainly depends on phase-locked loop, voltage-controlled oscillator, automatic frequency control loop and frequency synthesizer.

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