SI5350C-B04231-GTR

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The SI5350C-B04231-GTR is a high-ship PLL clock generator with clock and data recovery (CDR) from Silicon Labs. With pin-selectable differential or single-ended input, this device is fully configurable via a heavyweight GUI or via the simple I2C serial port. The SI5350C-B04231-GTR provides a large number of features, including integrated Filtered Jitter Attenuator (FJA™), Spread Spectrum Clocking (SSC), clock and data recovery, input hysteresis, pulse squelch, duty cycle correction, and automatic output power control. This device is designed to provide flexibility and superior performance.

The SI5350C-B04231-GTR is designed for applications such as Gigabit Ethernet, Portable/Mobile computing, Networking and Communications, Set-Top Boxes, Print Servers, and Home Automation. It is a great solution for applications where lowest jitter, extended EMI reduction, and higher clock frequencies are required for improved system performance.

The SI5350C-B04231-GTR works on the principle of frequency synthesisation technology and input frequency selection, which enables the output frequency to be easy and accurately set or changed.

1. Input Frequency Selection: Input frequency is chosen based on the input clock source. The SI5350C-B04231-GTR can accept input from multiple clock sources such as Crystals, as well as from differential and single ended TTL, LVCMOS and LVPECL inputs.
2. Frequency Synthesis Feed-forward: The SI5350C-B04231-GTR provides frequency synthesisation feed-forward, which enables the device to match the incoming input clock frequency to a desired output frequency.
3. Phase-Locked Loop (PLL): PLL is used to provide a feedback loop to maintain the predefined output frequency. The PLL locks the output to the desired frequency by monitoring the skew between the input and output. If the output frequency starts to drift, the PLL will compensate for the drift by adjusting the VCO frequency.
4. Spread Spectrum Clocking (SSC): The SSC feature helps to reduce EMI in some applications. It does this by spreading the spectral density of the output clock, consequently reducing the peak power. The peak power reduction is achieved by modulating the output frequency with a low-frequency signal called the spreading signal.

The SI5350C-B04231-GTR is the ideal choice for providing high-performance, low-jitter clock solutions. It is suitable for a wide variety of clock applications, from simple to complex, and from low to high frequency. This device is fully configurable, provides wide frequency ranges, and features a number of features that enable improved system performance.

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