SI5335A-B04671-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5335A-B04671-GMR is a web-customizable, any-frequency, any-output quad clock generator and buffer from 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 support LVPECL, LVDS, CML, HCSL, CMOS, and SSTL/HSTL formats 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 output banks supporting any frequency up to 350 MHz with 0 ppm synthesis error
• Three independent, user-assignable, pin-selectable device configurations
• Flexible input options: External crystal, CMOS, SSTL/HSTL, or differential signals
• Low phase jitter performance (0.7 ps RMS typical) with selectable PLL loop bandwidths

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 telecom line cards
• Broadcast video/audio timing and processor/FPGA clocking

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory configuration encoded in the ordering suffix B04671 via Skyworks ClockBuilder Pro, as this part number represents a customized frequency plan rather than a generic functional unit. Confirm RoHS compliance and lead times directly with authorized distributors, as availability for custom-configured silicon varies by production batch.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when multiple distinct clock frequencies are required from a single package. Ensure the input reference matches the supported formats (crystal, CMOS, or differential). Validate that the required output voltage levels (1.5V–3.3V) align with the load requirements. Use the ClockBuilder utility to generate the specific binary file corresponding to the B04671 suffix before procurement.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5335 family of highly flexible clock generators. The 'A' indicates the A-series variant, while 'GMR' denotes the tape-and-reel packaging format. The unique suffix 'B04671' identifies a specific pre-programmed frequency plan and control pin configuration provided by Skyworks Solutions through their web customization service.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacement requires matching the exact frequency plan and pin configuration. Generic Si5335 devices must be reconfigured via ClockBuilder Pro to replicate the B04671 settings. Verify compatibility with existing PCB land patterns and control signal logic levels if substituting with other Si5335 variants.