FS7145-02G-XTP

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FS7145-02G-XTP, a type of clock/timing device, is a signal generator used in a wide variety of applications where low frequency precision signal, jitter performance and signal quality are critical. It is a synthesizer that uses a phase locked loop (PLL) to generate an output frequency. This device is a frequency synthesizer and combiner solution integrated into a single IC that operates up to 6 different output frequencies. This device is ideal for communications and networking applications.

The purpose of the FS7145-02G-XTP is to provide a low-jitter, low-phase noise signal output with a programmable output frequency. The design and operation of the FS7145-02G-XTP are based on several components, beginning with its digital frequency synthesizer, which can generate a set of programmable frequencies. It has an open loop architecture, meaning that the output frequency is not caused by a feedback path from the output to its input. The synthesizer has an adjustable frequency control loop, allowing the frequency tuning of the output.

When an external reference clock is applied, the clock signal is first receive by the FS7145-02G-XTP\'s frequency synthesizer. Then the PLL circuit is used to match the output frequency to the reference clock. The PLL is composed of a phase detector, a charge pump, and a voltage-controlled oscillator (VCO). The phase detector receives the reference clock and compare it with a sample of the output frequency. The charge pump compares the phase error and generates a corresponding voltage. The voltage is then used to adjust the frequency of the VCO and thus the output frequency.

The PLL in the FS7145-02G-XTP operates in a closed-loop mode, meaning that any deviation between the reference frequency and the output frequency is detected and corrected. This allows the system to maintain a stable output frequency and reduces jitter. In addition, the charge pump has two gain settings that allow for fine-tuning of the output frequency with minimal phase jitter output. The VCO also offers programmable frequency synthesis and direct control features that allow for flexibility in design.

The FS7145-02G-XTP is designed for a wide range of applications, such as for communications, networking, and audio systems. Its low-jitter, low-phase noise output allow for precision timing requirements to be met. Its main features, such as programmable output frequencies and direct control, makes designing with it easier and more flexible. Its reliability, low cost, and easy-to-use operation make it the perfect choice for applications that require precision timing.

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