SI5350A-B08989-GTR

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The SI5350A-B08989-GTR is a clock generator, phase-locked loop (PLL) and frequency synthesizer device designed for highly precise, low power, small size applications. It is optimized to meet the stringent criteria demanded in many wireless infrastructure, military and aerospace applications, providing the accuracy and low jitter performance needed for the most advanced system designs. Combining the features of two technology-leading families of single-chip frequency synthesis, the Si5350A-B08989-GTR is a true high-performance clock generator/frequency synthesizer solution.

The core technology of the Si5350A-B08989-GTR is its integrated PLL, which is composed of an oscillator and a feedback circuit. The oscillator uses an external voltage-controlled crystal oscillator (VCXO), designed to mimic the reference clock’s frequency. The PLL feedback circuit is composed of an analog phase detector, a charge pump and a digitally controlled variable frequency divider. The phase detector and charge pump work together to compare the phase and frequency of the reference clock with the phase and frequency of the VCXO. The output of the phase detector is used as the control voltage for the oscillator, thus controlling its phase so as to lock the output frequency of the PLL to the reference clock frequency.

The Si5350A-B08989-GTR features integrated clock outputs, clock generator/PLLs, jitter attenuators, and a wide range of frequency synthesizers. The clock generator/PLLs offer integration of an oscillator, PLL, and voltage-controlled oscillator (VCO) into a single device. The output of the PLL adjusts to the reference clock frequency and maintains accuracy over supply voltage, temperature, and output frequency changes, eliminating the need for external components. It has a variety of different output frequency selections and modulation steps, allowing for highly precise fine tune adjustments. The jitter attenuators improve the overall jitter performance of the system, resulting in improved performance in high-speed applications. The frequency synthesizers are designed to provide highly precise frequency conversion from a selected reference clock. The frequency synthesizers can support up to 32 output frequencies, allowing for a wide range of applications. The synthesizers feature a wide range of reference clock sources, including crystal oscillators, VCXO, FSK and PLL.

The Si5350A-B08989-GTR is ideal for applications in the wireless communications market where superfast clock generation and high jitter performance is required. It offers superior dynamic phase and frequency performance with low power consumption and small size, making it ideal for space-constrained applications. Its high integration and configurability makes the device ideal for a variety of applications that require the highest performance, such as cellular base station applications, PLLs, frequency synthesizers, clock buffers, clock distribution, and frequency translation. In addition, the Si5350A-B08989-GTR has been designed for use in military, aerospace and automotive applications, providing superior performance and reliability.

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