SI5335D-B04218-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5335D-B04218-GM is a web-customizable, any-frequency, any-output quad clock generator and buffer manufactured by Skyworks Solutions. 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 input references including external crystals (25/27 MHz), CMOS, SSTL/HSTL, and differential inputs. Outputs are configurable as LVPECL, LVDS, CML, HCSL, CMOS, or SSTL/HSTL with independent voltage levels of 1.5, 1.8, 2.5, or 3.3 V. It operates on a single core supply of 1.8, 2.5, or 3.3 V within an ambient temperature range of –40 to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Four independent output banks supporting any frequency up to 350 MHz with 0 ppm synthesis error
• Three user-assignable, pin-selectable device configurations for replacing multiple ICs
• Flexible input options: 25/27 MHz crystal, CMOS (10–200 MHz), SSTL/HSTL, or differential (10–350 MHz)
• Configurable output drivers with independent voltage selection (1.5, 1.8, 2.5, or 3.3 V)

Clock Generators, PLLs, Frequency Synthesizers Applications

• PCI Express Gen 1/2/3/4 common clock generation
• Ethernet switch and router timing
• Processor and FPGA clocking
• DSL jitter attenuation

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory configuration encoded in the B04218 suffix via the official Skyworks ClockBuilder Pro tool or datasheet ordering section. Confirm that the pin-selectable control functions match the system design requirements, as the device supports up to five user-assignable pins for spread spectrum, reset, and frequency plan selection.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a single device must replace multiple clock generators or buffers with distinct frequency plans. Ensure the required output formats (LVPECL, LVDS, CML, etc.) and voltage levels are supported by the four independent output banks. Verify that the input reference source matches the supported frequency ranges for CMOS, differential, or crystal inputs.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5335 family of highly flexible clock generators. The 'D' variant typically denotes specific performance or feature sets within the series, while the alphanumeric suffix defines the unique factory-programmed frequency plan and pin configuration. It is designed to simplify system design by consolidating multiple clock sources into one customizable package.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Replacement requires matching the exact frequency plan and pin configuration, which necessitates consulting the specific datasheet for the target replacement part to ensure electrical and functional compatibility.