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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The SI5335B-B06474-GM from Silicon Laboratories is a clock generator IC that can be used for a variety of high-performance, low-power digital applications. The IC provides the user with an oscillator at the system clock frequency, along with an output reference clock. It is suitable for designs requiring high-speed digital communication, server applications, and O/E clock conversions.

At the heart of the IC is a PLL that converts an input reference clock into an output system clock at frequencies ranging from 50 kHz to 10 GHz. A variety of input sources can be used including an external reference clock or on-chip crystal. The PLL enables high-speed clock synthesis and adjustment of output clock frequency and duty cycles. A programmable fractional-N divider can be used to further adjust the clock frequency and duty cycle to exact specifications.

For applications requiring low power consumption, the SI5335B-B06474-GM has a number of features that help ensure that it is consuming the lowest amount of power possible. An input voltage range of between 1.65 V and 2.5 V enables it to operate in power-sensitive applications. It has an integrated programmable low-power mode, as well as an adjustable output signal amplitude that can help reduce noise.

To reduce EMI, the SI5335B-B06474-GM utilizes spread-spectrum clock modulation. This ensures that the device meets modern EMI limits for digital pulse width modulation, while still maintaining a high performance output clock. The device also has a programmable slew-rate control to reduce EMI further.

In addition to its versatile clock output, the SI5335B-B06474-GM also has a wide range of advanced features that make it suitable for a variety of applications. It has an on-board phase-locked loop that allows it to lock onto a received signal even when the signal is very weak. It has a dynamic power management system that enables it to switch off certain components when they are not in use, further reducing power consumption.

The SI5335B-B06474-GM is a versatile and highly programmable clock generator IC that can be used for a variety of applications requiring a high-quality, low-power output clock. Its wide range of features such as spread-spectrum clock modulation, dynamic power management, and low-power modes, enable it to meet modern EMI and power requirements in an efficient and cost-effective way.

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