SI5351A-B02247-GTR

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The SI5351A-B02247-GTR is a modern clock generator that makes use of advanced frequency synthesis techniques to produce high-precision, low-noise clock signals. It belongs to the family of clock generators, phase-locked loops (PLLs), and frequency synthesizers. As a clock generator, the SI5351A-B02247-GTR is used for designing intricate timing circuits for equipment that requires precise clock signals.

This clock generator operates with an input frequency of 25 MHz and can produce up to 6 clock outputs with a selectable frequency range of 0.5 MHz to 200 MHz and a jitter of less than 1 ps (RMS) over 12 kHz bandwidth. It is also capable of generating multiple frequencies, with the ability to cycle through all programmed frequencies in under 1 ms. The SI5351A-B02247-GTR also features a low phase noise of -133 dBc in a 10 MHz reference oscillator and is stability temperature compensated over the full -40 C to 85 C operating range.

The SI5351A-B02247-GTR is suitable for use in communications infrastructure, sensor and instrumentation systems, medical imaging and other applications where precision, stability and low-power operation are key. The device can switch quickly between multiple clock frequencies, making it an ideal choice for systems that require quick synchronization or frequency hopping.

The working principle of the SI5351A-B02247-GTR is based on the direct digital synthesizer (DDS) technology, which is a digitally controlled oscillator that is capable of generating frequencies from 0.5 MHz to 200 MHz. By changing the input frequency, the output clock frequency range can be obtained. This is achieved by a series of programmable multiplication and division ratios, thus enabling the parallel generation of multiple frequencies. The generated clock frequency can be fine-tuned by a 9-bit, 80 MHz parameter-loaded resolution, which provides an output frequency resolution of 0.0125%.

When the multiplication and division ratios are set, the clock frequencies are synthesized by a bank of charge-pump digital phase-locked loops (PLLs). The PLLs provide excellent frequency stability, low jitter and low noise, even in high EMI environments. The generated clock signals are then further filtered and amplified before being passed on to the output buffers. The output buffers are particularly useful, as they allow the SI5351A-B02247-GTR to drive long lines while still providing low jitter and noise.

The SI5351A-B02247-GTR is a low-power, high-precision clock generator that is ideal for applications that need precision timing, frequency control, and low-jitter clocks. By combining an adjustable frequency range, a high level of frequency stability, and low-power operation, the SI5351A-B02247-GTR is perfect for a wide range of applications such as communications systems, IoT applications, medical imaging and other critical functions.

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