SI5335A-B08211-GM

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SI5335A-B08211-GM is a high-performance programmable Clock Generator for demanding high-performance applications, such as datacom, telecom, instrumentation and condition in industrial control. It belongs to the Clock/Timing – Clock Generators, PLLs, Frequency Synthesizers, which offers over 500 high-performance, configurable clock sources, from which users can choose different clock options. 

SI5335A-B08211-GM is a two-in-one solution for both frequency synthesizer- and VCXO-based clocking designs. It integrates two clocks: a frequency synthesizer clock and a programmable VCXO. The output of the VCXO can be used to control the internal PLL, resulting in a tight phase lock between the VCXO and the frequency synthesizer output. This integration gives designers a programmable way to produce low-jitter clock waveforms while maintaining a narrow phase relationship between different clock generation domains.

The SI5335A-B08211-GM is a programmable, high-performance clock generator with the flexibility of a wide range of output frequencies and phase jitter performance. It can be used in both frequency and phase-locked loop (PLL) applications. The programmable feature enables users to optimize the device configuration and performance according to the clocking needs of their system.

The clock generator has both analog and digital connections. The analog connections include a multi-bit I/O port, serial peripheral interface, I2C bus and an active amplifier. The digital connections consist of parallel port and other digital I/O. The I/O port, serial peripheral interface, I2C bus and active amplifier provide the user with access to the parameters of the clock frequency, phase, and active energy level.

The working principle of SI5335A-B08211-GM is based on the principle of frequency synthesis, meaning creating signals from multiple frequency sources to produce complex waveforms. It is accomplished by performing separate arithmetic operations on multiple, independent clock sources and combining them with a programmable logic circuit. In order to optimize the clock output performance, the frequency synthesis approach incorporates the elements of frequency multiplication, division, addition and subtraction.

The frequency synthesizer component of the SI5335A-B08211-GM is used to generate a variable frequency output from a fixed frequency signal source. The frequency synthesizer component is controlled through a programming interface which allows adjustment of the clock frequency output and its jitter performance. The frequency synthesizer component programmability also enables the user to modify its frequency output over time.

The VCXO component of the clock generator is used to produce a stable clock signal with low jitter performance. It is a type of voltage-controlled oscillator, which means that its frequency output is dependent on the voltage applied. The voltage applied determines the frequency at which the oscillator will operate. The VCXO component is able to generate a stable output signal with low jitter performance as it is based on a quartz crystal with a low frequency drift over temperature.

SI5335A-B08211-GM is an ideal solution for demanding high-performance applications, such as datacom, telecom, instrumentation and industrial control. With its variable tuning range and flexibility in performance optimization, this clock generator offers a comprehensive programmable clocking solution for the aforementioned applications.

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