CY2308SXI-1HT

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The CY2308SXI-1HT is a high-performance Frequency Synthesizer integrated circuit device (IC). It includes a fully programmable 8-channel phase-locked loop (PLL), a high-performance programmable frequency synthesizer (PLL), and a low phase-noise clock divider/multiplier. It is designed for use in a wide range of applications, from communication systems to consumer electronics.

The CY2308SXI-1HT is ideal for communications and consumer applications requiring precise timing and frequency control (such as GPS, wireless, and consumer applications), and for reference clocks for processors, DSPs and ASICs. This device combines high-performance PLL and frequency synthesizer blocks with a robust clock divider/multiplier, providing a complete timing solution in a single package.

Application Field: The CY2308SXI-1HT can be used in low-integer-ratio-applications, frequency synthesis, and digital stepsize applications, providing designers with flexibility and advanced features to meet their system requirements. It is suitable for use in a variety of wireless, consumer and communication applications, including wireless base station clock generators, wireless communications systems, signal receivers, GPS systems, fiber-optic transmission systems, and consumer electronics.

Working Principle: The CY2308SXI-1HT is based on a phase-locked loop (PLL). In a phase-locked loop, an input signal is combined in a loop with feedback from one or more dividers and/or multipliers. The combination of the input signal, the dividers, and the multipliers forms a closed loop, in which the output signal tracks the input signal. The PLL is a form of negative feedback control system, which can be used to lock onto the frequency of the input signal and keep it locked, even when the frequency of the input signal varies. The PLL can also be used to generate a new signal at a different frequency than the input signal.

The CY2308SXI-1HT also incorporates an advanced frequency synthesizer. This allows it to generate a wide band of multiple frequencies with a high degree of accuracy. The frequency synthesizer comprises a reference oscillator, a digital loop filter, and a numerically-controlled oscillator (NCO). The reference oscillator is used to lock onto a reference frequency and the NCO is used to synthesize the desired frequency. The digital loop filter is used to minimize the jitter and phase noise in the output signal.

The CY2308SXI-1HT also includes a high-performance clock divider/multiplier chain. This can be used to divide or multiple the frequency of the output signal, depending on the application. The clock divider/multiplier chain can operate up to 650MHz, and can be programmed for different division/multiplication ratios. This allows the frequency of the output signal to be tailored to the application.

Overall, the CY2308SXI-1HT is an advanced, high-performance frequency synthesizer device that is designed to provide flexible and accurate control of clock and timing signals in a wide variety of applications. Its advanced PLL and frequency synthesizer blocks, along with its low phase noise clock divider/multiplier, make it an ideal choice for communication and consumer applications that require precise control of frequency and timing signals.

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