SI5356A-B04129-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5356A-B04129-GMR is an I2C programmable clock generator from Skyworks Solutions. It synthesizes four independent non-integer related frequencies up to 200 MHz using patented MultiSynth technology, ensuring 0 ppm frequency synthesis error. The device features eight CMOS outputs organized into four banks, each independently configurable for 1.8 V, 2.5 V, or 3.3 V logic levels. It accepts a 25 MHz or 27 MHz crystal or a 5–200 MHz reference clock input. Key electrical parameters include a core supply voltage range of 1.71 V to 3.63 V, a maximum period jitter of 75 ps pk-pk, and operation within an industrial temperature range of –40 °C to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any frequency from 1 to 200 MHz on each of the 4 output banks with guaranteed 0 ppm frequency synthesis error
• Configurable triple A spread spectrum allowing any clock, any frequency, and any spread amount
• Programmable output phase adjustment with less than 20 ps error
• Interrupt pin indicates loss of signal (LOS) or loss of lock (LOL)

Clock Generators, PLLs, Frequency Synthesizers Applications

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

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory-programmed NVM configuration associated with the B04129 suffix against system requirements before procurement. Confirm that the GMR reel packaging aligns with automated assembly capabilities. Ensure compatibility with the ClockBuilder Desktop software for any necessary in-system RAM reconfiguration via the I2C interface.

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 discrete oscillators and multi-PLL solutions, reducing board space and power consumption. Verify that the target application supports the I2C/SMBus programming interface and utilizes the ClockBuilder Desktop tool for optimal configuration generation.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5356 family of highly flexible clock generators. It shares the same core architecture and package outline as other Si5356 variants but differs in its factory-programmed Non-Volatile Memory (NVM) content. The 'A' designation indicates the specific silicon revision supporting the described features.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct functional replacements include other Si5356A variants with different NVM configurations, such as SI5356A-Axxxxx-GMR. Cross-family replacement with the SI5355 requires verification of output count and frequency flexibility constraints.