SI5338B-B01163-GMR

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The SI5338B-B01163-GMR is a clock generator module part of the SiTime family of clock generators. SiTime\'s technology enables the use of programmable clocks and oscillators in a wide range of applications. The SI5338B-B01163-GMR clock generator is specifically designed for applications in the clock/timing space, with features such as selectable frequencies up to 150 MHz and jitter reduction for improved system performance.

The SI5338B-B01163-GMR is ideal for applications such as synchronous clock distribution, clock conversion and multiple reference clock interface in consumer and networking, enterprise and datacom, consumer audio and video, and mobility wireless applications. It features a 1.8V (1.2V to 3.3V) supply voltage with a power-down mode, a holdover mode, an overshoot mode, adjustable skew, and a wakeup smart switching algorithm.

The SI5338B-B01163-GMR also provides clock frequency tuning and an adaptive jitter filtering and squelch circuitry that allows output frequencies to remain locked, even if the input frequencies drift and suffer from noise. Additionally, it allows an input frequency offset tuning of up to ±75 ppm with digital control, providing the user with adjustable skew with a resolution of 85 ps.

The SI5338B-B01163-GMR features a spread spectrum mode that reduces the peak emissions spectrum of a periodic signal, making it ideal for applications needing compliance with EMC/EMI requirements.

The working principle of the SI5338B-B01163-GMR clock generator is based on the company\'s proprietary MultiSynth fractional synthesizer. This fractional synthesizer utilizes an input frequency, set by the user, which is fed into a phase-locked loop (PLL). This PLL works to match the input frequency as closely as possible, and adjusts the output frequency accordingly. When the output frequency is correct, the PLL locks into the input frequency and the desired output frequency is achieved.

The SI5338B-B01163-GMR also has a proprietary jitter attenuation circuit, which helps reduce output jitter and allows the device to achieve a high level of timing accuracy. This jitter attenuation circuit reduces the jitter of a device by controlling the PLL\'s loop bandwidth, thereby allowing it to be more sensitive to any input frequency changes, and react accordingly.

In summary, the SI5338B-B01163-GMR clock generator module is optimized for clock/timing applications such as synchronous clock distribution, clock conversion, multiple reference clock interface, and frequency tuning. Its unique input frequency offset tuning and jitter attenuation capabilities provide the user with exceptional performance and accuracy. Additionally, the spread spectrum mode ensures compliance with EMC/EMI requirements.

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