SI5351A-B05130-GT

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The SI5351A-B05130-GT from Silicon Labs is a fully-integrated clock generator, with three phase-locked loops capable of producing 8 outputs in the range of 8kHz to 220MHz. It integrates a wide range of features, including using the latest multi-synth technology, improved jitter performance, increased frequency resolution, improved temperature stability, and self-adjustment to system clocking constraints. The SI5351A-B05130-GT can be used in a wide variety of applications, such as communications networks, medical imaging systems, test and measurement equipment, instrumentation, and consumer electronics.

The SI5351A-B05130-GT’s application fields include any application requiring accurate clock timing, such as those found in communications systems (3G/4G/5G base stations, satellites, etc.), medical systems (CT/MRI scanners, etc.), and computer systems (servers, workstations, etc.). This device excels in applications needing precise timing control, distributed clocking architectures, and high frequency stability. It is ideal for a broad range of RF and microwave applications, such as: WLAN, WiMAX, ADSL, CATV, and VSAT.

The SI5351A-B05130-GT is based on Phase Locked Loop (PLL) technology and operates on a large oscillator frequency range of 8kHz to 220MHz. The SI5351A-B05130-GT is a complete, integrated clock generator, with three phase-locked loops, providing eight output frequencies. The device is also capable of generating frequencies with extreme jitter performance, excellent temperature stability, and clock synchronization features.

The SI5351A-B05130-GT features a flexible programmable clock architecture that allows for easy selection between PLL and Multi-Synth operating modes. It utilizes the latest Multi-Synth technology, offering improved jitter performance, frequency resolution, and temperature stability. The device can be programmed via the I2C bus, using either serial or parallel programming modes. The Multi-Synth technology also provides synchronization features, allowing for clock synchronization and adjustment to system clocking constraints.

The SI5351A-B05130-GT also features integrated spread spectrum functionality, which provides an extra layer of jitter and noise attenuation, and it also provides improved immunity to EMI/RFI. This feature is especially useful when used in noisy environments, such as consumer electronics, automotive, and medical applications.

The working principle behind the SI5351A-B05130-GT is based on the use of phase-locked loops (PLLs) to generate multiple output clocks, each with a precisely controlled frequency, that are synchronized to a single reference clock. The reference clock is combined with a synthesizer and phase detector, which creates an inertial reference for the output clocks. The phase detector compares the reference clock with each output clock and maintains their frequency relationship. Any change in the reference frequency is quickly reflected in the output clocks and at the same time phase noise is minimized.

The phase-locked loops are integrated as part of the device, providing a high level of stability, accuracy, and low jitter performance. Additional features such as spread spectrum synchronous clock stretching, for improved immunity to EMI/RFI, and synchronous frequency adjust, for adaptation to system clock constraints, are available in the device. The SI5351A-B05130-GT also provides other features such as integrated clock buffering and programmable output slew rate.

In conclusion, the SI5351A-B05130-GT is an ideal clock generator and PLL solution for a wide range of applications. Its integrated PLLs and Multi-Synth technology enables accurate and low jitter frequencies, with excellent temperature stability. It is especially suitable for use in communications networks, medical imaging systems, test and measurement equipment, and consumer electronics, as well as other applications needing precise timing control and distributed clocking architectures. It is also well-suited for applications requiring improved jitter performance, frequency resolution, temperature stability, and self-adjustment to system clocking constraints.

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