SI5335B-B05727-GMR

Overview

The SI5335B-B05727-GMR 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 fractional divider technology, ensuring 0 ppm frequency synthesis error. The device supports flexible input references including external crystals (25/27 MHz), CMOS, SSTL/HSTL, and differential inputs. Outputs are independently configurable for LVPECL, LVDS, CML, HCSL, CMOS, or SSTL/HSTL formats with selectable supply voltages 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
• Configurable as a clock generator or buffer with two selectable PLL loop bandwidths (1.6 MHz or 475 kHz)
• Supports up to three independent, pin-selectable device configurations via user-assignable control pins
• Low phase jitter performance of 0.7 ps RMS in typical applications

Applications

• PCI Express Gen 1/2/3/4 common clock and jitter attenuation
• Ethernet switch/router and 1 GbE/10 GbE timing
• Processor and FPGA clocking
• DSL jitter attenuation and telecom line cards

Procurement Notes

Verify the specific factory configuration encoded in the ordering suffix B05727 against system requirements. Confirm that the required input reference type and output voltage levels match the programmed settings. Check current availability status as customized parts may have limited stock or longer lead times compared to standard inventory items.

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single source with precise frequency accuracy. Ensure the design utilizes the ClockBuilder Pro utility to define the specific frequency plan and pin assignments before ordering. Verify that the target application supports the available output driver formats and voltage levels provided by the Si5335 family.

Part Context

This part belongs to the Si5335 family of highly flexible clock generators. The 'B' indicates a specific package or variant within the series, while the suffix 'B05727' denotes a unique factory-programmed configuration generated via the Skyworks web customization tool. It replaces multiple discrete clock oscillators and buffers in complex digital systems.

Replacement Considerations

Direct replacement requires matching the exact frequency plan and pin configuration. Generic Si5335 devices must be reconfigured using ClockBuilder Pro to replicate the B05727 settings. Verify compatibility with existing PCB land patterns and power supply rails.