SI5325A-B-GM

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Clock/Timing applications have become increasingly popular in recent years. One of the most popular among them is the SI5325A-B-GM, which is a clock generator, PLL, and frequency synthesizer all in one.

Features of the SI5325A-B-GM

The SI5325A-B-GM is a frequency synthesizer capable of converting an input signal into a signal with frequency ranges between 8 kHz and 868 MHz. It has a signal-to-noise ratio (SNR) of -155 dBc/Hz and a power dissipation of less than 200mW. It accepts input signals such as LVCMOS, CMOS, SMA and SMA high frequency. Additionally, it supports a wide range of output frequencies with fractional-N steps, pulse-dropping functions, and gain control. It also has an integrated low jitter mux, monitor and alarm features.

Applications of the SI5325A-B-GM

Clock and timing applications are typically used in many digital electronics and consumer devices, such as digital televisions, smart phones, and more. The SI5325A-B-GM is suitable for a wide range of such applications, such as base station clocks, DSL modems, network switches, data servers and storage, wireless communications, industrial automation, and consumer electronics. This frequency synthesizer is well-suited for a variety of broadcast and consumer applications.

Working Principle of the SI5325A-B-GM

The SI5325A-B-GM works by converting an input signal into a signal with higher accuracy, finer resolution, and lower jitter than what is possible with basic frequency synthesizers. This is done using a low-noise phase-locked loop (PLL). The PLL contains a frequency reference, an 11-section frequency divider and a voltage controlled oscillator (VCO). This setup allows the SI5325A-B-GM to convert input signals with frequency range 8 kHz to 868 MHz, with fractional-N frequency steps of 9-bits (roughly 500ppt). In addition, the SI5325A-B-GM has a low power dissipation and can be implemented in low-power applications.

Conclusion

The SI5325A-B-GM is a clock generator, PLL, and frequency synthesizer capable of converting an input signal into a signal with frequency ranges between 8 kHz and 868 MHz. This makes it suitable for a wide range of clock and timing applications, from base station clocks to consumer electronics. It features low power dissipation, low-jitter, and gain control. Additionally, it has an 11-section frequency divider and a voltage controlled oscillator for higher accuracy and finer resolution than what can be achieved with most other frequency synthesizers. As such, the SI5325A-B-GM is a great choice for applications requiring clock and timing solutions.

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