SI5335D-B11835-GMR

Overview

The SI5335D-B11835-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 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 (< 350 MHz) with 0 ppm synthesis error via MultiSynth fractional divider technology.
• Three user-assignable, pin-selectable device configurations allowing one IC to replace multiple clock generators.
• Flexible input reference support for external crystals (25/27 MHz), CMOS (10–200 MHz), SSTL/HSTL, and differential inputs (10–350 MHz).
• Configurable output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, and SSTL/HSTL formats with independent supply voltages.

Applications

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

Procurement Notes

Verify the specific factory configuration encoded in the B11835 suffix against system requirements, as this part is a custom web-configured device. Confirm package type is 24-QFN and check RoHS compliance status. Ensure design compatibility with the specified input/output electrical parameters before procurement.

Selection Notes

Select this model when four distinct, non-integer-related clock frequencies are required from a single source. Verify that the desired output formats (LVPECL, LVDS, etc.) and voltage levels match the load requirements. Ensure the input reference signal matches the supported ranges (Crystal, CMOS, or Differential) and that the system can accommodate the 24-QFN package footprint.

Part Context

This component belongs to the Si5335 family of highly flexible clock generators. The 'D' suffix typically denotes specific performance or packaging variations within the series, while 'GMR' indicates tape-and-reel packaging. It serves as a drop-in replacement for multiple discrete crystal oscillators and buffer ICs in complex digital systems requiring precise timing.

Replacement Considerations

Direct replacements must be other Si5335 variants with identical B11835 configuration data. Generic Si5335 parts without the specific suffix will have different default configurations. Verify pinout compatibility and ensure the substitute supports the same output drive strengths and voltage levels.