SI5338M-B02923-GMR

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The SI5338M-B02923-GMR is an application-specific clock/timing device designed to generate multiple system clocks with low jitter, selectable frequencies, and clock outputs of various polarities and outputs of various rise/fall times. It delivers outstanding jitter performance, low additive phase jitter, clock design flexibility, and high reliability.

The SI5338M-B02923-GMR resides in a single-delayed-pull package and meets PLL-based clock needs for applications such as central office, optical cross-connect switches, digital data storage, buffered storage, and high speed packet switches. Produced by Silicon Labs, the SI5338M-B02923-GMR uses a single supply voltage, allowing for improved design flexibility and system scalability.

The SI5338M-B02923-GMR is designed to deliver an unequaled level of performance and stability. The device has an excellent jitter performance of below 200fs. The clock generator uses a crystal oscillator as its reference clock source, and features a wide range of output frequencies, which supports different server platforms. The system utilizes an internal voltage-controllable oscillator, which is programmable over a wide range and capable of handling moderate frequency changes or recombination of multiple frequencies. It is also able to change clock frequency, phase and output type directly.

At its core, the system utilizes a low-phase-noise PLL core to achieve stability and low jitter. The clock generator operates in an adjustable frequency range between 10MHz to 900MHz, which supports server platforms like DDR2 and DDR3. The system also provides excellent control options for the PLL, enabling the user to control jitter peaking, loop damping, corner frequency of the VCO, and other parameters such as phase-locked frequency and loading.

The device uses an on-chip programmable frequency divider to provide different output clocks. This divider can be programmed to divide the input frequency by an integer N, for example divide it by four or eight. The system also features programmable phase delay slip control which helps the device maintain phase accuracy over system threshold temperatures.

The SI5338M-B02923-GMR also has excellent control options for the noise transfer function and provides programmable load control for the output stages for different output types. This gives the user more flexibility in controlling the clock distribution and helps reduce the complexity of the system. The device also provides programmable slew rate control for outputs in multiple voltage domains, and provides selectable levels of output-to-output jitter.

The SI5338M-B02923-GMR is a great cost-effective choice for clock/timing applications that require high performance, power efficiency, and low jitter. It delivers high system stability, great phase accuracy, low jitter performance, and flexibility in clock distribution. Thanks to its single supply voltage, it is easy to scale up system clock performance, and its features provide ample control over noise transfer functions and ensure system stability.

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