SI5350B-B02708-GT

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The SI5350B-B02708-GT is a clock generator products in the Clock/Timing series by Silicon Labs. It is a frequency synthesizer developed using advanced DSPLL (Digital Phase Locked Loop) technology that integrates both the frequency synthesizer PLL and VCO circuits into one product. It is designed for applicaitons requiring a stable frequency source in the range of 1 kHz up to 1250 MHz.

The SI5350B-B02708-GT is perfect for applications where a tight control of frequency accuracy and high performance are critical. It offers fast lock times, low phase noise, tight integration, low jitter and excellent frequency accuracy. What\'s more, it is fully integrated with on-chip memory, eliminating the need for external EEPROM. The device also integrates advanced features such as power management and on-chip monitoring.

Optimized for use in a wide variety of applications such as communications, medical, aerospace and defense, broadcast, and instrumentation, the SI5350B-B02708-GT features fixed input/output frequency modes, spread-spectrum clock reference synchronization, adaptive automatic calibration, and on-chip monitoring as well as programmable features such as frequency scaling and burst mode.

The SI5350B-B02708-GT operates on a single +3.3V power supply, with the power consumption highly dependent on the required output frequency and duty cycle. It is designed for both commercial and industrial temperature ranges.

Working Principle

The SI5350B-B02708-GT is a frequency synthesizer that converts an input frequency to adjustable/desired output frequency based on a digital control algorithm. It contains both an input reference circuit and a VCO circuit in order to perform frequency synthesizer operations. The input reference circuit receives and demodulates an input reference clock up to 1250MHz for the PLL, while the VCO circuit produces a programmable frequency output up to 1250 MHz.

The PLL algorithm used to control the VCO frequency is based on Phase Locked Loop (PLL) technology, which ensures that the desired output frequency follows the input reference clock frequency. The phase detector compares the input reference clock with the VCO output, and the difference between the two signals is processed by a loop filter. The loop filter plays a key role in the PLL system, as it determines the closed-loop time constant of the system. The filtered output of the loop filter is then fed to a VCO, which then generates the desired output frequency.

The SI5350B-B02708-GT offers a wide range of programmable features that help reduce the number of components in a design, such as frequency multiplexing, spread-spectrum clock reference synchronization, adaptive automatic calibration, and on-chip monitoring. These features help ensure that the generated output frequency is accurate and stable, making it ideal for use in critical applications.

Application Field

The SI5350B-B02708-GT offers high performance and superior frequency accuracy, making it ideal for a variety of applications, such as communications, medical, aerospace and defense, broadcast, and instrumentation. It is well suited for use in system clocking, network synchronization, packet switching, and timing reference applications. It is also suitable for use in high-speed digital data transmission where fast lock times, high accuracy, and low jitter are essential.

The SI5350B-B02708-GT is also used in clock synchronization and distribution applications, such as telecommunications and data centres. It is versatile enough to be used in any application that requires a stable frequency source in the range of 1 kHz up to 1250 MHz, such as frequency-hopping spread-spectrum (FHSS) applications. Additionally, since the device comes in a miniature, lead-free package, it can be used in space-constrained environments.

In summary, the Silicon Labs SI5350B-B02708-GT is a versatile device that is suitable for a wide range of applications requiring a stable frequency source in the range of 1 kHz up to 1250 MHz. Its advanced features, such as power management and on-chip monitoring, as well as its small form factor, make it an ideal choice for applications where high frequency accuracy and performance are demanded.

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