SI5335D-B15677-GMR

Overview

The SI5335D-B15677-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 fractional divider 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 and includes loss-of-signal alarm functionality.

Feature Summary

• Four independent output banks supporting any frequency (< 350 MHz) with 0 ppm synthesis error via MultiSynth technology
• Three user-assignable, pin-selectable device configurations for replacing multiple clock ICs
• Flexible input options: External crystal (25/27 MHz), CMOS (10-200 MHz), SSTL/HSTL, or Differential (10-350 MHz)
• Configurable output drivers: Up to four differential pairs or eight single-ended outputs with independent voltage levels

Applications

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

Procurement Notes

Verify the specific factory configuration encoded in the B15677 suffix against the system requirements, as this part number represents a custom design generated via the ClockBuilder utility. Confirm availability status with authorized distributors, as customized parts may have limited stock or longer lead times compared to standard off-the-shelf inventory. Ensure the RoHS compliance and moisture sensitivity level match the assembly process specifications.

Selection Notes

Select this component when the design requires four distinct, non-integer-related clock frequencies from a single package. Choose the D-series variant if the application demands support for higher input frequencies up to 350 MHz via differential or SSTL/HSTL sources, as opposed to the A-series which is limited to lower reference frequencies. Verify that the required output formats (LVPECL, LVDS, etc.) and voltage levels are supported by the specific pinout configuration provided in the datasheet.

Part Context

This part belongs to the Si5335 family of highly flexible clock generators. The 'D' suffix typically denotes support for higher frequency inputs (up to 350 MHz) compared to other variants like the 'A' series. The 'GMR' suffix indicates a tape-and-reel packaging format suitable for automated surface-mount assembly, distinguishing it from tray-packaged versions.

Replacement Considerations

Direct replacements within the same family include other Si5335 variants with different B-suffixes configured for different frequency plans. For generic replacement without custom configuration, standard Si5335 models can be used if the frequency requirements align. Cross-family replacements such as the Si5338 should be evaluated for pin compatibility and feature set differences.