SI5335A-B05435-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5335A-B05435-GM 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, 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 within the -40 to +85 °C temperature range.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Four outputs supporting any frequency (< 350 MHz) with 0 ppm synthesis error via MultiSynth fractional divider technology
• Three independent, user-assignable, pin-selectable device configurations for replacing multiple ICs
• Flexible input reference: External crystal (25/27 MHz), CMOS (10–200 MHz), SSTL/HSTL (10–350 MHz), or Differential (10–350 MHz)
• Configurable output drivers: Up to four differential pairs or eight single-ended outputs with independent voltage levels (1.5, 1.8, 2.5, 3.3 V)

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
• Processor and FPGA clocking
• DSL jitter attenuation and telecom line cards

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory configuration encoded in the B05435 suffix against system requirements, as this part is a custom-programmed device. Confirm availability status directly with Skyworks Solutions or authorized distributors, as lead times may vary for customized orders. Ensure the selected output formats and frequencies match the design constraints before ordering.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a single device must replace multiple clock generators or buffers with varying frequency and format requirements. Use the ClockBuilder Pro utility to define the specific frequency plan, output formats, and control pin assignments. Verify that the required output voltages (LVPECL, LVDS, etc.) align with the available VDDO supplies (1.5V, 1.8V, 2.5V, 3.3V).

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5335 family of highly flexible clock generators. The 'A' indicates the package type (24-QFN), while 'B05435' represents a unique factory-configured frequency plan and control pin assignment. The '-GM' suffix denotes the RoHS-compliant tape and reel packaging option.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacement requires matching the factory-configured frequency plan and pinout. Generic Si5335 devices require reprogramming via ClockBuilder Pro if the existing configuration is not preserved. Verify compatibility with existing control signals (SSENB, RESET, FS pins) and power supply rails.