SI5332BC08899-GM3

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5332BC08899-GM3 is a factory-programmed, 12-output programmable clock generator housed in a 48-QFN package. Utilizing MultiSynth technology, it synthesizes frequencies up to 200 MHz with 190 fs RMS jitter using an external crystal reference. The device supports integer and fractional synthesis modes with 0 ppm frequency error. It features user-configurable output signal formats including LVDS, LVPECL, HCSL, and LVCMOS across multiple independent supply banks (1.5 V to 3.3 V). Configuration is managed via ClockBuilder Pro software or an I2C serial interface.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates up to 12 differential clock outputs with 190 fs RMS jitter performance.
• Supports any-frequency synthesis up to 200 MHz with 0 ppm frequency error.
• Features user-configurable output formats: LVDS, LVPECL, HCSL, and LVCMOS.
• Includes spread spectrum modulation capability for EMI reduction.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Servers, Storage, and Search Acceleration
• Ethernet Switches and Routers
• Small Cells and Mobile Backhaul/Fronthaul
• Communications and Broadcast Video

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific NVM code '08899' corresponds to the required frequency plan and configuration parameters. Confirm that the 48-QFN package dimensions match the PCB land pattern requirements. Ensure the design accommodates the necessary external crystal components if operating in free-run mode.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model for designs requiring high output counts (up to 12) with mixed voltage domains. The Si5332B grade limits output frequencies to 200 MHz; verify this range meets system requirements. Consider the embedded crystal options (Si5332E-H) if minimizing BOM count is a priority over external component flexibility.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5332 family of any-frequency clock generators. The 'B' designation indicates support for frequencies up to 200 MHz with integer and fractional synthesis modes. The 'GM3' suffix specifies the 48-pin QFN package supporting up to 12 outputs. The '08899' sequence represents a unique factory-programmed configuration generated by ClockBuilder Pro.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same family include other Si5332B variants with different package sizes (e.g., GM1 for 6 outputs, GM2 for 8 outputs) or different NVM codes. Cross-vendor equivalents require verification of jitter specifications, output drive capabilities, and pin compatibility.

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the maximum output frequency for the Si5332B series?

The Si5332B series supports output frequencies up to 200 MHz.

How is the device configured?

Configuration is performed using Silicon Labs' ClockBuilder Pro software, which assigns a custom part number and programs the NVM at the factory. In-system programming is also supported via the I2C interface.

Does the device support spread spectrum?

Yes, the Si5332 supports both center and down spread spectrum modulation from 0.1% to 2.5% to reduce electromagnetic interference.