SI5338C-B08954-GM

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Clock/Timing - Application Specific clocks offer a wide range of specialized, application-specific features. These features enable improved performance, enhanced stability and flexibility, and greater ease of use. The SI5338C-B08954-GM is an example of a clock/timing Application Specific product.

The SI5338C-B08954-GM is an ultra-low-jitter, digitally-programmable clock generator that operates with a wide range of input frequencies. It can accept a 25MHz crystal clock input, and will multiply it up to frequencies of up to 900MHz. This clock generator is tailored for communications applications such as SONET/SDH, Gigabit Ethernet, Fibre Channel and PCI Express. Its flexible design allows for a variety of output configurations to suit a range of application requirements.

SI5338C-B08954-GM Working Principle

The SI5338C-B08954-GM uses a Phase Locked Loop (PLL) architecture. A PLL is a device that locks the phase of an output signal to the phase of an input signal, while allowing the frequency of the output signal to be adjusted to a desired value. The SI5338C-B08954-GM incorporates a Voltage Controlled Oscillator (VCO) and a combination of analog and digital blocks to provide the necessary circuitry to generate PLL-based signals.

The basic working principle of the SI5338C-B08954-GM is that it takes the input signal and multiplies it to a desired output frequency. For example, if the input signal is 25MHz, the SI5338C-B08954-GM can be configured to generate an output frequency of 450MHz. The PLL consists of three main functional blocks namely, the feedback divider, the loop filter and the VCO. The feedback divider divides the output signal by a certain factor and provides it back to the PLL, while the loop filter acts as a low-pass filter to filter any noise and distortion. The VCO is a voltage-controlled oscillator that is used to generate the desired output signal.

The SI5338C-B08954-GM also has advanced features like spread-spectrum and frequency-spread clock outputs. Spread-spectrum clock outputs are used when jitter and EMI noise must be reduced. This feature reduces the peak power in the output signal by spreading and modulating the power spectral density of the signal. Frequency spread is used to reduce the potential for aliasing and crosstalk between multiple output clocks. In addition, the SI5338C-B08954-GM has power-down, sleep and wake-up control modes to reduce power consumption and improve system reliability.

SI5338C-B08954-GM Application Field

The SI5338C-B08954-GM is designed for a wide range of clock and timing applications. It is used in enterprise networks, data centers, storage, video and broadcasting systems, Ethernet switches, and many more. The wide range of output frequencies makes it ideal for use in applications such as SONET/SDH, Gigabit Ethernet, Fibre Channel and PCI Express. The SI5338C-B08954-GM can be used in both synchronous and asynchronous applications.

The SI5338C-B08954-GM is also used in embedded systems, consumer electronics, automotive and industrial applications. The spread-spectrum and frequency-spread features make it suitable for use in high-noise environments, while the power-down, sleep and wake-up control modes make it ideal for battery-powered applications. The SI5338C-B08954-GM is also used in clock recovery systems, modulation and demodulation, time division multiplexing, frequency synthesis, and more.

Conclusion

The SI5338C-B08954-GM is a versatile, digitally-programmable Clock/Timing - Application Specific product. Its advanced features such as spread-spectrum and frequency-spread outputs make it suitable for high-noise and battery-powered applications. Its wide range of frequencies makes it suitable for use in a variety of applications including SONET/SDH, Gigabit Ethernet, Fibre Channel and PCI Express. Offering improved performance, enhanced stability and flexibility, and greater ease of use, the SI5338C-B08954-GM is the clock generator of choice for a wide range of applications.

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