SI5338N-B08158-GMR

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The SI5338N-B08158-GMR is an Application Specific Clock/Timing device manufactured by Silicon Laboratories, Inc. It is a highly integrated, precision frequency synthesizer, phase locked loop (PLL) and oscillator suitable for a variety of clock and timing applications.

The SI5338N-B08158-GMR is a low-power, single-chip device that is configurable via an I2C interface. This effectively eliminates the need to design, or source, complicated multiple-component clock trees and therefore enables cost, time, and space savings. It is designed to implement low-frequency high-precision clock trees with PLLs, one or more oscillators, and fractional frequency synthesizers for a number of digital logic applications including microprocessors, digital signal processors and communications base-stations.

The SI5338N-B08158-GMR uses a fractional-N PLL, which removes the fractional spurs and jitter from traditional PLLs to ensure low jitter generation, minimize noise and harmonics, and manage the battery consumption. It is available in various packages, depending on the application and chip complexity.

The features and benefits of the SI5338N-B08158-GMR include:

• High-precision frequency synthesis
• Low-noise, low-jitter PLL
• Low-power consumption
• Very small form factor
• Cost effective solution
• Enhanced jitter performance

The SI5338N-B08158-GMR is based on a digital phase-locked loop (DPLL) architecture and operates using a variety of modes. In the FM mode, it achieves frequency step size as small as ±0.01% of the reference frequency and a phase-noise performance of -169 dBc/Hz at 1 MHz offset. In the Fractional-N mode, it offers the highest phase noise performance, with a phase noise of -173 dBc/Hz at 1 MHz offset.

The I2C interface is used to control the device and includes features such as frequency/phase offset, trim and calibration to adjust the frequency output, as well as jitter attenuation and adjustment of loop bandwidths. The SI5338N-B08158-GMR integrates a temperature-compensated crystal oscillator (TCXO). Additionally, it is configurable through the low-frequency noise shaping (LFNS) architecture with a wide allow range for noise attenuation needs.

The SI5338N-B08158-GMR is ideally suited for applications that require low-jitter, high-precision clock and timing Signal Synthesis, generated from a flexible range of reference frequencies. These include applications such as servers, routers, network switches, base stations and consumer electronics.

The SI5338N-B08158-GMR is a cost-effective and reliable solution that simplifies the clock design process and reduces overall system power consumption. The combination of features such as a robust frequency synthesis method, low jitter and high-precision PLLs, and configurability through an I2C interface make the SI5338N-B08158-GMR an ideal choice for a variety of Clock/Timing applications.

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