SI5335B-B04882-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks Solutions SI5335B-B04882-GM is a web-customizable, any-frequency, any-output quad clock generator and buffer. It synthesizes four non-integer-related frequencies up to 350 MHz using MultiSynth technology, ensuring 0 ppm frequency synthesis error. The device supports three independent pin-selectable configurations and features flexible output drivers compatible with LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, with individual output voltage selection. Key electrical parameters include a maximum output frequency of 350 MHz, a typical phase jitter of 0.7 ps RMS, and an operating temperature range from –40 °C to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• MultiSynth fractional divider technology enables independent synthesis of four completely non-integer-related frequencies up to 350 MHz with 0 ppm error.
• Supports up to three independent, user-assignable, pin-selectable device configurations for system flexibility.
• Flexible input reference options including external crystals (25/27 MHz), CMOS, SSTL/HSTL, and differential inputs.
• Configurable output drivers support various formats (LVPECL, LVDS, CML, HCSL, CMOS, SSTL, HSTL) with independent voltage levels.

Clock Generators, PLLs, Frequency Synthesizers Applications

• PCI Express Gen 1/2/3/4 common clock and jitter attenuation
• Ethernet switch/router and 1 GbE/10 GbE interfaces
• DSL jitter attenuation and MSAN/DSLAM/PON systems
• Processor and FPGA clocking

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory configuration encoded in the ordering suffix B04882 against the target design requirements. Confirm that the package marking and physical dimensions match the 4 x 4 mm, 24-QFN outline specified in the datasheet. Ensure compatibility with the ClockBuilder Pro utility for final validation of the customized settings.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when multiple distinct clock frequencies are required from a single source without integer relationships. Verify that the input reference signal matches one of the supported formats (crystal, CMOS, differential). Check if the required output voltage levels (1.5, 1.8, 2.5, or 3.3 V) align with the load devices. Consider the loop bandwidth settings (1.6 MHz or 475 kHz) based on the jitter attenuation needs of the application.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The SI5335B-B04882-GM belongs to the Si5335 family of highly flexible clock generators. The 'B' indicates a specific performance grade or revision within the series, while the suffix 'GMR' typically denotes tape-and-reel packaging. This part replaces multiple discrete clock oscillators and buffers, simplifying board layout and reducing component count in complex digital systems.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements must be from the Si5335 family with identical or compatible output configurations. Verify that substitute parts support the same frequency plan and output formats. Note that ordering suffixes define unique factory configurations; generic Si5335 parts require reconfiguration via ClockBuilder Pro.