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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The SI51214-A01AFM is a high-performance Any-Frequency Modulator (AFM) used to modulate an analog signal with a periodic reference clock. This device is often used as part of a clock generator/synthesizer package, which enables the user to generate multiple frequency signals from a single input. The SI51214-A01AFM is well suited for applications where multiple frequency outputs are needed, such as High Definition Multimedia Interface (HDMI), audio/video synchronization, communications and networking, and switching power supply regulation.

Application Field

The SI51214-A01AFM is well suited for applications which require a high-performance frequency modulator. It is especially well suited for generating precisely timed frequency signals from a single reference clock. The wide range of input frequency sources and selectable modulation schemes makes it an ideal solution for applications where multiple frequency outputs need to be generated. Examples of such applications include High Definition Multimedia Interface (HDMI), audio/video synchronization, communications and networking, and switching power supply regulation.

Working Principle

The working principle of the SI51214-A01AFM can be simplified to three steps: reference clock input, frequency modulation, and signal output. The first step involves the input of a reference clock. This reference clock, along with a selection of internal modulator parameters, is used to generate the modulated signal. The modulation is realized by the SI51214-A01AFM’s Any-Frequency Modulation (AFM) scheme, which enables the generation of highly accurate and reproducible frequency signals. The second step involves the modulation of the frequency of the reference clock. This is done by changing the phase, frequency, or level of the reference clock signal in order to create a waveform with the desired characteristics. The third step involves the output of the modulated signal. This signal is then used as the source for generating the multiple frequency signals in applications where reference clocks are needed.

Conclusion

The SI51214-A01AFM is an ideal solution for generating precisely timed frequency signals from a single reference clock. Its Any-Frequency Modulation (AFM) scheme enables the generation of highly accurate and reproducible frequency signals, and its wide range of input frequency sources and selectable modulation schemes makes it a great choice for applications which require multiple frequency outputs.

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