SI5335B-B05158-GM

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The SI5335B-B05158-GM is a high-performance, high-integrity clock generator from Silicon Labs. It combines a low-jitter voltage-controlled oscillator (VCO) with a clock phase detector and phase-locked loop (PLL) to produce a precise clock output signal.

The SI5335B-B05158-GM is designed for use in a variety of clock and timing applications, such as synchronizing clock signals between different systems, timing critical analog or digital functions, or providing precise timing and synchronization signals to sensitive radio frequency receiver or transmitter circuits.

The device is highly integrated and allows for a precisely controlled frequency output ranging from 1MHz to 200MHz, with very low jitter. This allows designers to precisely control the timing of their applications, with the assurance that the output signal is extremely low-jitter and highly accurate. The output clock can be synchronized to a wide range of external clock sources, including crystal oscillators, SAW oscillators, or digital clocks.

The SI5335B-B05158-GM is ideal for use in applications such as high-speed data transfer, networks, portable devices, automotive systems, and consumer electronics. It is also useful for applications such as digital signal processing, cellular base stations, digital photography, and aerospace/military systems. The device is available in a compact 3 × 3mm package and is fully RoHS compliant.

The SI5335B-B05158-GM is based on the concept of a phase-locked loop (PLL). A PLL is a system designed to lock a voltage-controlled oscillator (VCO) at a frequency that is a multiple of an external reference signal. The PLL consists of four key components: a phase/frequency detector, a loop filter, a VCO, and a reference divider. The phase/frequency detector compares the input reference signal frequency and phase to an internally generated signal and generates a control voltage based on the difference. This control voltage is applied to the VCO, which adjusts its frequency to match the reference signal.

The loop filter serves two purposes: first, it filters out any noise that may be present in the incoming reference signal and secondly, limits the bandwidth of the PLL, allowing it to operate without oscillating. Then, the divided reference signal is compared with the VCO output signal. As the VCO frequency changes, the output will move out of phase with the reference signal and the phase/frequency detector will provide a corrective adjustment to the VCO to keep it in phase with the reference signal.

Once the loop has reached a steady state, the VCO output frequency is exactly the same as the frequency of the reference signal, multiplied by an integer factor called the multiplication factor. This multiplication factor allows the SI5335B-B05158-GM to provide precise clock output signals ranging from 1MHz to 200MHz.

The end result is a low-jitter output clock that is perfect for high-performance clock and timing applications. The SI5335B-B05158-GM is a powerful and reliable solution for designers who require a precise and high-integrity clock output for their applications.

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