SI5338N-B08730-GMR

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The SI5338N-B08730-GMR is a highly integrated, fan-out clock generator that seamlessly integrates the latest ultra-low jitter oscillator technologies. It is engineered to support a wide variety of digital system applications, including communications, networking, computing, and consumer, with asymmetric and/or symmetric transmission networks.

The SI5338N-B08730-GMR offers ultra-low jitter and power consumption, making it ideal for clock/timing applications specific to the communications market. The device supports a single input clock that can be divided and fan-out to eight different output clocks, when configured in its optimized fan-out arrangement.

The SI5338N-B08730-GMR features two reference clock inputs and seven differential outputs in an integrated 56-bump package. The inputs support both differential and single ended input references up to 3 frequencies. The outputs can be programmably divided by a value between 2 and 256 and clock polarity is programmable on each differential output. The device also provides an output-enable control on all seven differential outputs as well as a programmable spread spectrum modulation rate. The high-accuracy frequency synthesizer supports up to eight different frequencies, with a single clock at the input and all frequencies at the same time at the output.

The device is developed for the range of 3.3V and 5V logic devices, but it can also be powered with a 2.5V supply. It supports a wide range of clock output frequencies from 4kHz up to 2GHz, with 2.5nS jitter, and consumes only 100mA of quiescent current. The device also includes a self-test feature to monitor the device\'s timing parameters, allowing users to obtain the highest levels of performance and quality.

The SI5338N-B08730-GMR provides many benefits over traditional clock designs, such as cost savings and improved performance. With its industry-leading ultra-low jitter and low power cut design, the device can drive up to 8–10 clocks out of a single device, eliminating the need for multiple clock sources in many applications. Additionally, the reference clock frequencys can be changed without changing pin settings, reducing the time needed for system tuning and device configuration. The device also provides integrated spread spectrum modulation, reducing system noise and electromagnetic interference.

In terms of working principle, the SI5338N-B08730-GMR operates by using a crystal oscillator as the reference clock, which is then divided down by the integrated frequency synthesizer. The on-chip frequency synthesizer is used to multiply or divide the reference clock until it reaches the desired output clock frequency for each output. The device then applies a digital filter to clean up the reference clock signal, to reduce its jitter, and finally it outputs the filtered clock. Using the on-chip frequency synthesizer, the device can produce a wide range of frequencies, providing flexibility and easy control over the output clock signals.

In summary, the SI5338N-B08730-GMR is an ideal clock/timing device for communications applications. It offers cost savings, improved performance, and up to 8–10 different clocks output from a single device. The device features an integrated frequency synthesizer, reducing the time needed for device configuration and system tuning, and the integrated spread spectrum modulation reduces system noise and EMI. Finally, the device offers ultra-low jitter and power consumption, which makes it ideal for clock/timing applications.

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