SI5335D-B05869-GM

Overview

The SI5335D-B05869-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 options including external crystals (25/27 MHz), CMOS, SSTL/HSTL, and differential inputs. Outputs are configurable as LVPECL, LVDS, CML, HCSL, or CMOS 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.

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 reference: External crystal, CMOS, SSTL/HSTL, or differential signals
• Configurable output drivers: LVPECL, LVDS, CML, HCSL, CMOS, SSTL, HSTL

Applications

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

Procurement Notes

Verify the specific factory configuration encoded in the ordering suffix B05869 against the system requirements. Confirm that the required input source (crystal vs. signal) and output formats match the programmed settings. Ensure the PCB land pattern accommodates the 24-QFN package dimensions.

Selection Notes

Select this model if the design requires four distinct output frequencies with zero ppm error. Verify that the input clock source matches the configured input type (e.g., 25 MHz crystal). Check if the required output voltage levels (1.5V, 1.8V, 2.5V, or 3.3V) align with the target receivers. Consider the loop bandwidth setting (1.6 MHz or 475 kHz) based on jitter attenuation needs.

Part Context

This component belongs to the Si5335 family of highly flexible clock generators. The 'D' variant typically denotes specific electrical characteristics or packaging within the series. The 'GM' suffix indicates a lead-free, halogen-free RoHS-compliant Green package. The unique identifier B05869 specifies the exact frequency plan and pin configuration programmed at the factory.

Replacement Considerations

Direct replacements must be from the Si5335 family with identical B-codes to ensure functional equivalence. Generic clock generators may not support the same number of outputs or the specific 0 ppm synthesis capability. Verify pin compatibility and power supply requirements before substitution.