SI5338B-B01350-GMR

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Application Field and Working Principle of SI5338B-B01350-GMR

The SI5338B-B01350-GMR is a high-performance, high-resolution clock generator from Silicon Labs. It is used primarily in clock/timing, application-specific applications. It is suitable for a variety of data, telecom, and semiconductor applications, as well as networking, gaming, and GPS solutions.

The SI5338B-B01350-GMR offers excellent performance with industry-leading Phase Noise, integrated Jitter Attenuators, and three low-jitter outputs. The low-power fabrication technology allows the device to be implemented in a small form factor. The combination of industry-leading performance and low power consumption makes the SI5338B-B01350-GMR an ideal solution for applications requiring stringent timing performance.

Working Principle

The SI5338B-B01350-GMR is based on a patented Multipurpose MultiSynth architecture which enables programmable output clock frequencies from 3kHz to 500MHz. The device has 10 outputs that are individually programmable and have integrated jitter attenuation for superior performance.The device is functionally split into two parts: the Programmable Frequency Synthesizer (PFL) and the MultiSynth. The PFL accepts a crystal reference input and generates a 10-bit binary number representing a part of the desired output frequency. This is then sent to MultiSynth that modulates it to generate the desired output frequency.

The SI5338B-B01350-GMR integrates a MultiSynth PlusTM capability which adds additional levels of flexibility to the MultiSynth architecture. The MultiSynth PlusTM architecture allows for independent control of the output’s frequency, duty-cycle and jitter. This makes it possible to generate complex clock waveforms such as spread spectrum and modulated clock signals.

Features and Benefits

The SI5338B-B01350-GMR offers several features and benefits, including:

• High-accuracy output frequencies, with guaranteed absolute accuracy up to ±50ppm
• Low reference clock jitter (<100fs RMS) for optimal performance
• Programmable frequency divide ratios from 1 to 14, division by 1 to 250, and programmable duty cycles
• On-chip jitter attenuators that can be enabled or disabled, offering up to 50fs of jitter attenuation
• On-board crystal oscillator and external clock reference input, with support for both LVCMOS and LVDS (2.5V)
• Optional “open-drain” input for crystal oscillator enable/disable control

These features allow the SI5338B-B01350-GMR to be easily configured to meet the highest performance standards for timing applications. The on-board jitter attenuators can be enabled to reduce output jitter below the levels achievable with traditional clock synthesis techniques. The adjustable duty cycle and frequency divide ratios provide precise control of output frequencies, and the open drain input allows for precise control of the crystal oscillator.

Applications

The SI5338B-B01350-GMR is well suited for use in a variety of data, telecom, and semiconductor applications, as well as networking, gaming, and GPS. Its high performance and low power profile makes it an ideal solution for applications requiring stringent timing performance. Due to its flexibility and programmability, it can be used in applications such as frequency and phase synchronization, Ethernet framing, packet switching, and SONET/SDH networks.

The SI5338B-B01350-GMR can also be used in embedded applications such as medical imaging, wireless communications, and in control applications such as motion control, robotics, machine vision, and automation. In addition, it can be used in applications requiring low noise, high precision timing, such as telecom and military radar systems, mobile location services, and telemetry systems.

Conclusion

The SI5338B-B01350-GMR is an excellent, high-resolution clock generator with industry-leading performance. It is ideal for applications requiring precise timing, such as data and telecom applications, networking, gaming, and GPS solutions, as well as embedded applications. Its features and benefits make it an ideal solution for your clock/timing application-specific needs.

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