SY87729LHI

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SY87729LHI Application Field and Working Principle

The SY87729LHI is a low-cost, high-performance phase-locked loop (PLL) device that is used for complete clock and timing circuit solutions.

The device is ideal for applications such as multi-chip systems and networking, embedded control systems, and high-speed data and voice communications that require clock synchronization and timing.

The SY87729LHI can be used in a variety of clock and timing applications including:

• Clocking of digital system components (e.g. CPUs and GPUs)
• Designing and generating clocks and signal timing structures
• Generation of clock sources for communications networks
• Designing and controlling switching power converters
• Generating specific signal frequencies and timing intervals

Working Principle

The SY87729LHI is an integrated PLL device that is used to synchronize and control data between digital systems. It is capable of generating both clock outputs and signal timing structures from a single input signal.

The SY87729LHI works by using a phase-locked loop to synchronize a reference signal, such as a crystal oscillator or system clock signal, to an input signal. The input signal is then used to generate a variety of frequency output signals that are used for clocking and timing within the system.

The device’s on-chip PLL is composed of a phase detector, a loop filter and a voltage-controlled oscillator (VCO). The phase detector analyzes the phase difference between the reference signal and input signal, and produces an error signal that is based on the degree of phase difference. The loop filter is then used to filter out any noise and other unwanted signals in the error signal, and the VCO generates output signals that are in phase with the input signal.

The SY87729LHI also features a frequency synthesizer block that is used to generate different frequency outputs. The frequency synthesizer is composed of a charge pump and a programmable counter, which can be used to generate output signals with a wide range of frequencies.

The SY87729LHI is a versatile and powerful PLL device that can be used in a variety of different clock and timing applications. It has a low power consumption and a high level of integration, making it an ideal solution for a wide range of applications.

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