SI5338B-B04857-GMR

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The SI5338B-B04857-GMR is an application specific device designed to provide a wide range of clock and timing solutions for various applications. It features a hybrid design that combines a high-performance voltage-controlled crystal oscillator (VCXO) with direct frequency synthesis and a PLL, allowing for a wide range of low-jitter clocks to be generated.

The SI5338B-B04857-GMR is based on a double-conversion system, allowing multiple clocks to be generated on the same device. The first conversion is done by the VCXO, with the frequency of the VCXO being controlled by a resistor and/or capacitor which can be programmed to set the desired frequency. The frequency from the VCXO is then passed through a digital frequency synthesizer where multiple different high-precision clocks can be generated in the same device. The digital frequency synthesizer can also be used to create additional frequency outputs with selectable output formats.

The PLL in the SI5338B-B04857-GMR is used to clean up the jitter of the different clocks that have been generated. This is done by multiplying the frequency from the VCXO and/or the frequency synthesizer by a factor of 2 or 4, and averaging out any jitter in the signal. In addition, the PLL also has a “holdover” mode that will keep the jitter of the clocks stable when the main clock fails.

The SI5338B-B04857-GMR is ideal for applications that require multiple clocks with high-accuracy and low jitter, such as communication and software-defined radios, network switches, and other high-speed data transfer applications. It is also commonly used in industrial and medical applications, where precision and stability of the clocks is essential. The ability to generate multiple clocks with different frequencies, as well as the low jitter performance, makes it an ideal clock and timing solution for a wide variety of applications.

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