SI5350A-B07254-GM

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SI5350A-B07254-GM Clock Generators, PLLs, Frequency Synthesizers, Application Field and Working Principle

The Si5350A-B07254-GM is a clock generator, phase-locked loop (PLL), and frequency synthesizer integrated circuit (IC). It is a type of clock device with programmable, any-frequency output. The single component replaces multiple, discrete components, minimizing component count, cost, and design complexity.

Application Field

The Si5350A-B07254-GM is most commonly used in both wired and wireless communications applications that require performance and reliability, such as those in datacom, telecom, broadcast, test and measurement, and military and aerospace markets. The clock device can be used to develop a clocking solution for any system that requires high-speed, fractional-N, or integer-N control of multiple frequencies.

The clock IC is useful for applications that need to generate multiple outputs. With up to four outputs, the device can be used to drive a network of serdes and DSP blocks among several serial links. Its fractional-N PLL architecture enables clock and data recovery (CDR) to generate a local clock from data received from a serial source.

The clockic is also useful for applications that require a high-performance clock distribution and synchronization solution. Its integer-N PLL architecture can deliver a low-jitter output to drive multiple system clocks.

Working Principle

The Si5350A-B07254-GM clock generator, PLL, and frequency synthesizer uses a multiphase output section to deliver four different PLL-generated clocks. It contains a seven-bit embedded configuration register for configuring the IC\'s input source, frequency multiplication ratio, and output characteristics. It also features an analog VCO loop filter and a programmable charge pump. Additionally, it generates a low-jitter reference clock output.

Internally, the device uses a fractional-N synthesizer architecture that supports up to 400 MHz on all the outputs. The fully integrated PLL enables any output to be frequency-agile in a wide variety, with adjustable bandwidth, slew rate control, and integer-N and fractional-N synthesis capabilities.

The fractional-N PLL architecture provides clock generation with ultra-low jitter, while the integer-N PLL architecture provides low-cost clock generation. This enables the device to be flexible and to accommodate various applications.

The Si5350A-B07254-GM clock generator, PLL, and frequency synthesizer has a programmable input section and a programmable frequency multiplier that allows for multiple operating frequencies. It can also be used for clock and data recovery (CDR) to generate a local master clock from a received serial data source.

The clock IC also features an embedded configuration register for easy, fast programming of clock parameters. This makes the device an ideal solution for applications that require low-jitter, high-performance clock generation.

Conclusion

The Si5350A-B07254-GM is a versatile clock generator, PLL, and frequency synthesizer IC. It combines a fractional-N PLL and an integer-N PLL, enabling clock generation with ultra-low jitter and low-cost clock generation. The programmable input section and frequency multiplier can be used to generate multiple operating frequencies.

The embedded configuration register makes the IC suitable for applications in datacom, telecom, broadcast, test and measurement, and military and aerospace markets. Its fractional-N and integer-N synthesis capabilities make it an ideal solution for applications that require low-jitter and high-performance clock generation.

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