SI5335A-B05308-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5335A-B05308-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 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 voltage levels of 1.5, 1.8, 2.5, or 3.3 V. It features low phase jitter of 0.7 ps RMS, two selectable PLL loop bandwidths (1.6 MHz or 475 kHz), and operates on a single core supply of 1.8, 2.5, or 3.3 V within a –40 to +85 °C temperature range.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Synthesizes four independent, non-integer-related output frequencies up to 350 MHz with 0 ppm frequency error.
• Supports multiple input types: external crystal (25/27 MHz), CMOS (10–200 MHz), SSTL/HSTL, and differential (10–350 MHz).
• Configurable output drivers support LVPECL, LVDS, CML, HCSL, CMOS, and SSTL/HSTL formats with independent voltage selection (1.5, 1.8, 2.5, or 3.3 V).
• Features low phase jitter (0.7 ps RMS typical) and two selectable PLL loop bandwidths (1.6 MHz or 475 kHz) for jitter attenuation.

Clock Generators, PLLs, Frequency Synthesizers Applications

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

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory configuration encoded in the ordering suffix B05308, as this part is customized via the ClockBuilder Pro utility. Confirm that the required pin-selectable configurations and control pin assignments match the system design requirements before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when four independent clock outputs with varying frequencies and formats are required from a single device. Ensure the input reference matches the supported types (crystal, CMOS, or differential) and verify that the output voltage levels align with the target receiver specifications.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The SI5335A-B05308-GM belongs to the Si5335 family of highly flexible clock generators. The 'A' indicates the primary variant, while the suffix specifies the unique factory-programmed frequency plan and pin configuration generated through Skyworks' web-based customization tool.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Replacement requires verifying functional equivalence of the custom frequency plan and pinout configuration against alternative Skyworks clock generator models.