SI5356A-B05140-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5356A-B05140-GMR is an I2C programmable clock generator from Skyworks Solutions, featuring eight CMOS outputs organized into four independent banks. It synthesizes four non-integer related frequencies up to 200 MHz using patented MultiSynth technology, ensuring 0 ppm frequency synthesis error. The device supports a core supply voltage of 1.8 V, 2.5 V, or 3.3 V and allows independent output buffer voltages for each bank. It accepts a 25 MHz or 27 MHz crystal or a 5–200 MHz reference clock input. Key electrical specifications include a typical period jitter of 50 ps pk-pk and a maximum of 75 ps pk-pk, with a core supply current of 45 mA at 100 MHz operation.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any frequency from 1 to 200 MHz on each of the 4 output banks
• Guaranteed 0 ppm frequency synthesis error for any combination of frequencies
• Configurable spread spectrum: any clock, any frequency, and with any spread amount
• Programmable output phase adjustment with less than 20 ps error

Clock Generators, PLLs, Frequency Synthesizers Applications

• Printers
• Audio/video systems
• DSLAM equipment
• Storage area networks
• Switches and routers

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory-programmed NVM configuration associated with the B05140 suffix against system requirements before procurement. Confirm that the GMR reel packaging aligns with automated assembly capabilities. Ensure the industrial temperature range meets environmental specifications. Check for RoHS compliance status as indicated in official documentation.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when multiple non-integer related clock frequencies are required from a single source. It replaces multiple discrete oscillators and PLLs, reducing board space and power consumption. Use ClockBuilder Desktop software to generate the necessary register map or NVM file for the desired frequency plan. Ensure the application supports I2C/SMBus programming interfaces for configuration.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5356 family of highly flexible clock generators. It utilizes Skyworks' MultiSynth fractional divider technology to simplify timing architectures. The device integrates four independent PLL functionalities into a single chip, offering significant size and power advantages over traditional multi-PLL solutions. It is designed for applications requiring precise clock distribution with low jitter.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements may include other Si5356 variants with different NVM configurations, such as SI5356A-Bxxxxx-GMR. Verify that substitute parts maintain the same 24-QFN package and pinout compatibility. Ensure the replacement supports the required output frequencies and voltage levels.