SI5350A-B05259-GTR

Series:	*
Packaging:	Tape & Reel (TR)
Moisture Sensitivity Level (MSL):	--
Part Status:	Active

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Introduction

The SI5350A-B05259-GTR is a low-jitter, modular frequency synthesizer from Silicon Labs. It offers integrated frequency synthesis solutions for designs requiring low-power and high-performance clock solutions. The SI5350A-B05259-GTR supports multi-reference and multi-frequency clock distribution applications such as power management, clocking, and timing applications. This article explains the application field and working principle of the SI5350A-B05259-GTR.

Application Field

The SI5350A-B05259-GTR is designed to support a highly flexible, integrated approach to clock and timing generation. It is suitable in a variety of applications such as network routers, set-top boxes, wireless base stations, and PTP grandmaster clocks. The SI5350A-B05259-GTR supports a wide range of low-jitter master clock solutions, including GSM/EDGE, WiMAX, Orthogonal Frequency Division Multiplexing (OFDM),and two-wire/three-wire interfaces. It is also suitable for multiplexing of clocks from multiple oscillators, multiplying clock signals from a single source, and referencing multiple clocks from low-jitter sources. The SI5350A-B05259-GTR\'s feature set includes ultra-low power consumption, fast-lock times of 10 milliseconds, adjustable loop bandwidth for low noise, and programmable electronic tuning for wide range adjustment and wide range hold ranges for frequency deployment, centralizes clock and timing management, power management, phase-locked loop (PLL) phase noise, modulation and harmonic suppression, and multiple reference sources.

Working Principle

The SI5350A-B05259-GTR operates by electronically tuning both the integer and fractional sections of a programmable PLL. It utilizes a combination of programmable digital logic and analog components. It is designed to tolerate reference clock variations and to act as a zero-jitter clock generator and frequency synthesizer. The SI5350A-B05259-GTR uses a closed-loop feedback system to maintain a reference frequency derived from a main reference clock. The frequency is maintained by comparing the output frequency to a reference and adjusting the tunable PLL parameters accordingly. An integrated temperature-compensated oscillator (TCXO) is also used to ensure stability and accuracy over temperature changes. The SI5350A-B05259-GTR can be programmed to support a wide range of output frequencies and configurations, including full- and half-rate frequencied, as well as integer- and non-integer frequencies. This allows for integration of various circuits in diverse applications. The SI5350A-B05259-GTR has an integrated loop filter and VCO that delivers ultra-low jitter performance. It is also capable of supporting fast lock speeds and wide tuning range adjustments by allowing adjustment of the loop bandwidth. The PLL also supports numerous modulation and harmonic suppression settings, which allow components to be integrated in applications where low jitter performance is key.

Conclusion

The SI5350A-B05259-GTR is a low-jitter, modular frequency synthesizer suitable in a variety of applications. It uses a combination of programmable digital logic and analog components to support wide frequency range settings and fast lock speeds. This allows for integration of various circuits in diverse applications. Additionally, the SI5350A-B05259-GTR supports numerous modulation settings and harmonic suppression settings for ultra-low jitter performance.

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