SI5338N-B02027-GM

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The SI5338N-B02027-GM is a clock generator from Silicon Labs that is most commonly used in high-performance, low-power clock and timing applications. The SI5338N-B02027-GM is a CMOS integrated circuit (IC) designed for use in telecommunications and networking applications, but is also applicable in many other fields including medical, automotive, industrial, and consumer. It provides a highly flexible, proven and reliable clock/timing solution with integrated internal phase-locked loop (PLL) circuitry, as well as supporting a variety of frequency conversion functions including synthesizer and frequency divider, divided-by-two oscillator and spread spectrum functions.

The SI5338N-B02027-GM can be considered a “clock generator” because it generates multiple low-skew output clocks, each with independent phase and frequency characteristics. At the same time, it is a very sophisticated clock/timing function with a variety of features that facilitate the generation of multiple, independent clock/timing signals. The core of the SI5338N-B02027-GM is its on-chip PLL and dual DLL blocks, which are programmed using an I2C interface. This allows for quick and easy setup and programming of multiple outputs and integrated features such as spread spectrum and jitter filtering.

The SI5338N-B02027-GM is optimized for applications that require low-EMI (electromagnetic interference), low cost, high speed and low power. The application-specific nature of the SI5338N-B02027-GM is driven by many factors including the output frequency range of its on-chip PLL, the clock/timing-specific features it supports, and its ability to integrate seamlessly with other components.

The SI5338N-B02027-GM enables designers to quickly and easily generate multiple clocks, albeit at discrete frequencies, with minimal external components. It offers a simple and intuitive programming interface that preserves the integrity of the output clock signals while providing fine-grain control over the various programmable features. The low noise floor and low distortion of the clocks produced also give it an edge in many applications where absolute clock fidelity is crucial.

In terms of clock/timing capabilities, the SI5338N-B02027-GM features two phase-locked loops and two digital-locked loops which allow for advanced synchronization, phase alignment, and dynamic frequency selection. The phase-locked loops can be used for direct generation of low-skew, low-jitter clocks for a wide range of applications including synchronous Ethernet, telecom, and timing. The digital-locked loops are used for more precise synchronization of multiple clocks, as well as for simple frequency conversion and frequency synthesis.

The SI5338N-B02027-GM also offers several integrated features that are designed to reduce cost while also increasing reliability and robustness. These features include spread-spectrum, punch-through and anti-glitch, adjustable duty cycle distortion cancellation, sigma-delta jitter filtering and spread spectrum disable control. All these features prevent the clock signals from being distorted or corrupted and ensure that both the output clock duty cycle and frequency remain accurate over time.

The SI5338N-B02027-GM is available in several different packages, including SOIC and TSSOP, and is also available in both through-hole and surface-mount configurations. It also comes in several different frequency ranges, allowing it to cover a wide variety of applications. The IO voltage may be adjusted from 2.3 to 3.3 V for compatibility with the latest low-power logic standards, and the output frequency range covers from 25 kHz to 800 MHz.

In conclusion, the SI5338N-B02027-GM is a sophisticated clock generator designed for use in low-power applications where a low noise floor and low EMI are desired. It offers a wide range of features, including programmable low-skew output timing, spread spectrum modulation, and jitter filtering, as well as both high-frequency and low-frequency output options. It can be used in a variety of application-specific scenarios and is particularly well-suited to telecommunications, networking, automotive, medical and industrial applications.

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