SI5341A-A-GMR

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The SI5341A-A-GMR is a high-performance, clock generator, PLL and frequency synthesizer manufactured by Silicon Laboratories. It is designed to provide an easy-to-use solution to improve the performance and accuracy of timing applications. The high-performance, low-power SI5341A-A-GMR supports a wide range of clock frequencies, with high-level frequency resolution, low-level jitter and synthesized frequencies for up to 18 different outputs.

Applications

The SI5341A-A-GMR is typically used in communications and networking systems, high-end industrial and medical applications, and in automotive infotainment and navigation systems. The wide-ranging clock outputs, small form factor and integrated PLLs, make this device an ideal choice for applications requiring precision timing, such as 10/100/1000 Ethernet, Gigabit Ethernet, and PCIe interfaces. In addition, the SI5341A-A-GMR provides a variety of clock- and frequency-synthesis solutions for 3G/4G wireless applications and many leading edge ICs.

Working Principle

The SI5341A-A-GMR Clock Generator and Synthesizer uses phase-locked loop (PLL) techniques to generate precision clock signals in the range of 2.5MHz to 810MinHz. The device can generate up to 18 low-jitter output clocks and reference clocks. It can also be used with existing crystal oscillator or clock source and integrated with a wide range of clock ICs for best in class system performance.

The device is powered by a low-voltage supply, typically 1.8V to 3.3V, and accepts input clocks from a high-frequency crystal oscillator or from clock sources, such as crystal oscillators, reference clock inputs, and from on-board design. The output frequency can be precisely programmed from 1Hz to 810MHz with a resolution of 1Hz for a wide range of applications, such as server systems, Ethernet switches and routers, and a variety of digital signal processing systems.

The onboard PLL provides a wide range of programmability to meet various design requirements. It also offers flexibility in setting up the operating mode, clock output voltage, skew compensation, noise and power supply rejection, control impedance, spread spectrum, as well as security features, such as low drift and high jamming immunity.

The SI5341A-A-GMR enables designers to reduce the costs and time-to-market associated with customized timing solutions and provides the best-in-class performance that can meet any need.

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