SI5338C-B05411-GM

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The SI5338C-B05411-GM is a product within the family of Clock/Timing Solutions offered by Silicon Laboratories. It is specifically designed for a range of Application Specific applications. The primary function of the device is to provide a reliable and accurate timebase as well as a wide range of configurable outputs.

Features

The SI5338C-B05411-GM is designed to reduce the application engineering time and cost associated with developing a system clock. The device is a high performance, low-cost clock synthesizer that is capable of generating various multi-fractional frequencies up to 833 MHz with a wide range of configurable outputs. It is also capable of generating both crystalless and crystal-based outputs for applications where maximum accuracy is important.

The device offers multiple loop filter-shaping options and programmable duty cycles from 40% to 90%. Pin-selectable voltage options allow for flexibility in customer design, and an integrated temperature compensation algorithm ensures optimal performance over varying temperatures. Additionally, the SI5338C-B05411-GM is designed to operate with a supply voltage as low as 3.0 V and offers a low power mode. The device is ideal for high-volume applications due to its small size.

Performance

The SI5338C-B05411-GM is capable of achieving a high level of frequency stability and accuracy by using integrated temperature compensation algorithms to adjust for temperature variations. The device offers > 0.2 ppm frequency stability for applications that require accurate timing or frequency tracking. Additionally, it is capable of providing clock outputs with very low phase noise jitter to ensure that the signal-to-noise ratio of the output clock is maintained in applications such as hardware-based communications and telecoms systems.

The device is designed to offer a wide range of configurable outputs that are suitable for multiple application requirements. These include differential CMOS and LVPECL differential outputs, as well as single-ended CMOS, LVPECL and LVDS outputs. These outputs can be operated in master or slave mode, and the device is capable of synchronizing to a wide range of external clock reference sources, including selectable crystal references. The SI5338C-B05411-GM supports a minimum output frequency of 15KHz.

Applications

The SI5338C-B05411-GM is an ideal solution for a variety of applications. These include clock generator and distribution systems in handheld, communications and industrial equipment, frequency synthesizers in telecom, datacom and wireless infrastructure equipment, and precision timing systems in aerospace, defense and medical applications. The device is also suitable for a wide range of test and measurement equipment, as well as networking and other computer systems.

Working Principle

The SI5338C-B05411-GM is based on a Phase-Locked Loop (PLL) design. Its core function is to take in an external clock signal, typically a crystal oscillator, and generate a clocking system running at a higher frequency compared to the external signal. The device is designed to support multiple PLLs which are then used to independently generate multiple output clocks. Each PLL is equipped with a Voltage Controlled Oscillator (VCO) whose frequency is tuned by a Digital to Analog Converter (DAC) combined with a loop filter.

Once the loop filter has been tuned, the device is able to generate the desired frequency with a high degree of accuracy and stability. The SI5338C-B05411-GM contains a wide range of features that can be used to optimize the output performance. These include programmable spread spectrum sources, programmable loop filter values, charge pump current and operating voltage, and more. With these features, the device is able to generate multiple fractional clock frequencies up to 833 MHz.

Conclusion

The SI5338C-B05411-GM is a highly configurable, multi-fractional clock synthesizer designed for use in a variety of application specific markets. Its integrated temperature compensation algorithms ensure optimal performance over varying temperatures, and its wide range of configurable outputs can be used to generate a variety of clock frequencies up to 833 MHz. It is a low-cost, low-power, reliable and accurate solution for applications such as communications and telecom, test and measurement systems, and aerospace, defense and medical applications.

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