SI5350B-A-GMR

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Clock/Timing-Clock Generators, PLLs and Frequency Synthesizers provide the clock signals to digital systems. The SI5350B-A-GMR is one such Ultra-Low Jitter Clock Generator, PLL and Frequency Synthesizer from Clock/Timing family of electronics. The SI5350B-A-GMR offers low jitter, low power and high reliability.

Introduction to SI5350B-A-GMR

The SI5350B-A-GMR is an ultra-low jitter programmable clock generator and clock synthesizer from Silicon Labs. This IC from SI5350B-A-GMR family comes with Jitter attenuated digital outputs and is a versatile, highly programmable clock generator. It features high-precision frequency synthesizers and jitter attenuators that improve system performance and facilitates high-speed signal integrity capabilities. With an excellent jitter attenuation of 0.45ps RMS, low-noise clock outputs, and programmable duty cycle, the SI5350B-A-GMR can work with a wide range of frequency sources for clock synthesis and output. The SI5350B-A-GMR can accurately implement clock migration from reference clocks, from 20kHz to 312MHz.

Application Fields of SI5350B-A-GMR

The SI5350B-A-GMR enables a system designer to incorporate the highest measure of stability and performance in electronic design applications. The implementation of ultra-low jitter clock generation reduces dropped frames and maintains error-free transmission of data. Such high-precision clock signals are beneficial in a wide range of applications, such as broadcast audio, communication systems, consumer electronics, instrumentations and medical devices. Hence, the SI5350B-A-GMR can be used in applications such as:

• Clocking and buffering from reference signals:

  The SI5350B-A-GMR’s clock output can be tuned to different oscillators and input frequency sources for synchronization of clocks. The IC is designed to reduce the jitter present in the input clock signals and provide a low jitter output in frequency from 20kHz to 312MHz.

• Clock Migration:

  The SI5350B-A-GMR is also used in clock migration. Clock migration is the mechanism of converting one clock frequency to another. This IC is enabled to perform clock migration from the reference clocks. It can convert the frequency of two or more input clocks or reference clocks to drive the output clock.

• Test Pattern Generation:

  The SI5350B-A-GMR is also used for generating test patterns in data transmission applications. It helps to generate synchronous data streams and detect any accidental transmission errors. This helps to maintain error-free data transmission.

• Digital Data transmission:

  The SI5350B-A-GMR assists in fast and error-free digital data transmission. It helps to reduce the noise present in the output data and transmit data without any errors. In this regard, it is helpful in applications such as digital video, Ethernet and Fibre Channel transmission.

Working Principle of SI5350B-A-GMR

The SI5350B-A-GMR is a highly versatile and programmable clock generator, PLL and frequency synthesizer. It effectively translates reference clocks and buffers them with low jitter output or migrates two or more reference clock frequencies. It supports programmable output spread spectrum clock and frequency synthesis, as well as jitter attenuation features.

The SI5350B-A-GMR consists of two parts: the main device and the interface controller. The main device consists of a highly-integrated PLL and VCO circuits, which are capable of providing clean, low-jitter outputs in frequencies from 20kHz to 312MHz. Additionally, the main device module contains low power consumption circuits for high performance clocks.

The interface controller of the SI5350B-A-GMR consists of integrated I2C protocol controller, from which a user can access the functionality of the main device. The I2C controller also consists of SPI communication register controller for controlling the frequency parameters. The I2C interface helps to access the external registers and settings present in the IC, and hence control and adjust the parameters according to the user-specified requirements.

The SI5350B-A-GMR is also equipped with numerous features such as jitter attenuator, spread spectrum clock generator, oscillator, clock switch, holdover circuit and input clock compensation. These features help the IC to generate and provide clean and low-jitter outputs with minimal power consumption. In addition, the SI5350B-A-GMR offers excellent scalability, allowing operation to be taken to higher accuracy and stability when system requirements increase.

Conclusion

The SI5350B-A-GMR is an ideal solution for providing reliable and low-jitter clock signals for various consumer, industrial and embedded systems. Hence, it is suitable for a range of applications like buffering, synchronization and test pattern generation. The SI5350B-A-GMR is an energy efficient and user-friendly Ultra-Low Jitter Clock Generator, PLL and Frequency Synthesizer that simplifies clocking design, and ensures optimal performance of electronic devices.

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