SI5335B-B04322-GMR

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The SI5335B-B04322-GMR is a highly integrated, low-jitter clock generator integrated circuit from Silicon Labs. It is a clock generator and can also be used in frequency synthesizers and phase-locked loops (PLLs) to extend the range of crystal frequency coverage. The device provides low-jitter output signals up to 270 MHz. It is designed for applications requiring the highest performance, such as telecommunications and networking, military, and broadcast.

The SI5335B-B04322-GMR is tailored for high-speed telecom and datacom applications, supporting 2.5, 3.3 and 5 V logic inputs, as well as 12 to 25 MHz crystal inputs and up to 6 selectable output frequencies from 8 kHz to 270 MHz. It has a high jitter tolerance and features a high output drive capability, making it suitable for harsh telecom and datacom environments.

The device includes the Silicon Laboratories\' PLL Frac-N phase-locked loop architecture and supports I2C and SPI bus interfaces for programmability; this allows various industry-standard configurations to be easily programmed. The SI5335B-B04322-GMR also features programmable skew between output pairs, spread spectrum functionality and programmable output drive strength. All clock output functions are independently selectable and the outputs may be enabled and disabled individually.

In terms of clock generator applications, the SI5335B-B04322-GMR can generate a wide range of clock frequencies with excellent accuracy and jitter. It can be used in applications such as broadcast, telecommunications, storage/networking, computer and peripheral clocks, broadcast, datacom servers and routers, and military applications. In PLL and frequency synthesizer applications, the device can replace more expensive crystals and other parts, such as dividers and programmable logic arrays.

The working principle of the SI5335B-B04322-GMR is based on the use of a phase-locked loop (PLL) to allow the crystal frequency to be multiplied. The device accepts an input frequency on the crystal terminals, which is multiplied to higher frequencies. The device\'s PLL architecture is an Fractional-N design. This design allows the device to have very fine-grained control of its output frequency while keeping its output signals ultra low in jitter. The device can be programmed via I2C or SPI bus interface with various configurations. It also features spread spectrum and programmable output drive strength, allowing it to be used in higher reliability applications.

The SI5335B-B04322-GMR also features a range of features that make it more suitable for some applications than other clock generators, such as its flexible programmability and high output drive strength. Additionally, its spread spectrum function helps reduce EMI radiation from the output frequency, making it suitable for applications where reduced interference is an important parameter. All of these features make it suitable for high-performance applications requiring stability, low-jitter, flexibility, and accurate clocks.

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