SI5335B-B05653-GM

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The SI5335B-B05653-GM is a high-performance, integrated clock generator featuring 66 selectable different frequency outputs for numerous application fields. It is ideal for clock generation and clock recovery needs in wireless infrastructure, back-plane, digital and video applications.

The SI5335B-B05653-GM clock generator offers a variety of output combinations in many frequencies, ranging from 10 kHz to 750 MHz. It is offered in a tiny 3x3 mm QFN package, making it the right choice for compact applications, such as SoC designs, portable and wearable devices, automotive, and embedded or industrial applications. The flexible and cost-effective solution can handle a wide voltage range (1.8 V to 5.5 V).

The SI5335B-B05653-GM is a highly integrated clock source, providing a single reference crystal or a single reference voltage source to generate multiple, low-jitter clock outputs, eliminating the need for dedicated clock sources. Its core features include an integrated, low-phase-noise voltage-controlled oscillator (VCXO), clock multiplier, jitter attenuator, fan-out buffer, dual loop PLL and multiple dividers. The VCXO is designed to provide tracking and generation of low-spread-spectrum transitioning clocks of frequencies from 10 kHz to 750 MHz.

The SI5335B-B05653-GM features separate inputs for the differential reference clock and for the differential reference voltage. The voltage-controlled oscillator (VCXO) allows the phase-locked loop (PLL) control voltage to directly affect the oscillator frequency. This allows the device to realize frequency changes with minimal jitter on the output.

The dual-loop PLL mechanism in the SI5335B-B05653-GM makes it possible to quickly switch between two different frequencies in a predefined range of frequencies with low latency. This helps to reduce long settle times associated with other clock generators and reduce timing skews. The dual loop PLL also helps to compensate the jitter in noisy or high-frequency signals.

The SI5335B-B05653-GM fan-out buffer enables different clocks to be generated from a single reference clock. The output clock is deskewed after passing through the PLL as well as a jitter attenuator to provide low-jitter clock outputs with different frequencies. The jitter attenuator works in the time domain and improves the jitter performance on the clock outputs, even when using a noisy differential reference clock as the input.

The many different clock outputs offered by the SI5335B-B05653-GM make it ideal for use in a variety of diverse application fields, such as wired and wireless backplanes, data communication equipment, multimedia broadcasting systems, enterprise networking, and cellular backhaul. With its wide voltage range, the device is suitable for use in applications requiring the supply of the device from a wide AC input range (1.8 V to 5.5 V).

The SI5335B-B05653-GM from Silicon Labs is a highly integrated device offering numerous output clocks for multiple application fields. It features a voltage-controlled oscillator for low-jitter clock transmission, a dual loop PLL for switching between multiple frequencies with low latency, and an integrated jitter attenuator for low jitter on output clocks. The device is offered in a compact 3x3 mm QFN package and can be operated across the widespread voltage range of 1.8 V to 5.5 V.

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