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Oscillators

Oscillators are elements that generate electrical periodic signals, more commonly known as clocks. They are vital components in all kinds of electronic circuits and systems, used for timing control, frequency selection, signal transmission and modulation, and other functions as well.

KC2520K11.2896C1GE00

One type of commonly used oscillator is the KC2520K11.2896C1GE00. This oscillator is a low-cost, high-performance, easily programmable and highly reliable clock device. It can be used for a wide range of digital signal processing applications.

Application Field

The application field for the KC2520K11.2896C1GE00 is mainly digital signal processing. This includes digital audio signal processing, digital video signal processing, baseband digital high-frequency communications, wireless communications and mobile communications. The oscillator is suitable for a wide range of frequency ranges, such as 312.5kHz to 630MHz in the 2.4GHz band.

Working Principle

The working principle of the KC2520K11.2896C1GE00 is governed by the same principles as any other oscillator. It is composed of an oscillator core which utilizes the Direct Digital Frequency Synthesis (DDS) method. The DDS method provides for a high-speed generation of a wide range of frequency outputs with low jitter and very low power consumption. This makes it ideal for a wide range of applications that require high accuracy and minimum power consumption.

In order to generate the clock, the oscillator core utilizes two fundamental blocks: a phase-locked loop (PLL) and a counter. The PLL and the counter work together to generate different frequency outputs. The PLL controls the operating frequency of the oscillator core and is responsible for generating the reference clock, while the counter is responsible for generating the clock output.

The PLL consists of a voltage-controlled oscillator (VCO) and a phase detector. The VCO oscillates at an output frequency that can be adjusted using an external voltage. The output frequency of the VCO is then compared to the reference clock, and the phase detector continuously adjusts the frequency of the VCO to match the reference clock. This is how the PLL maintains the accuracy of the clock output.

The counter converts the output of the PLL to the required frequency. The counter consists of a divide by N (D/N) block which divides the PLL\'s frequency output to the frequency of the desired output. This output from the counter is then used as the output clock for the system.

Conclusion

The KC2520K11.2896C1GE00 is a low-cost, high-performance, programmable and highly reliable oscillator device. It utilizes the Direct Digital Frequency Synthesis (DDS) method to generate clock outputs at a wide range of frequencies. The oscillator is suitable for digital audio signal processing, digital video signal processing, baseband digital high-frequency communications, wireless communications and mobile communications applications.

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