SI5335A-B05532-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5335A-B05532-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 output drivers configurable for LVPECL, LVDS, CML, HCSL, CMOS, SSTL, or HSTL formats with independent voltage levels of 1.5, 1.8, 2.5, or 3.3 V. It operates on a single core supply (1.8, 2.5, or 3.3 V) and accepts external crystals (25/27 MHz), CMOS, differential, or SSTL/HSTL inputs. Key electrical parameters include a typical phase jitter of 0.7 ps RMS, a core supply current of 45 mA in PLL mode, and operation within a temperature range of –40 to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Four-output clock generator supporting any frequency (< 350 MHz) with 0 ppm synthesis error via MultiSynth technology
• Configurable as clock generator or buffer with three independent, pin-selectable device configurations
• Flexible output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats with independent voltage selection
• Low phase jitter of 0.7 ps RMS and two selectable PLL loop bandwidths (1.6 MHz or 475 kHz)

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 ordering suffix B05532, as this part is web-customized. Confirm that the required input reference type (crystal, CMOS, or differential) and output voltage levels match the pre-programmed settings. Check for availability constraints, as customized parts may have limited stock or longer lead times compared to standard inventory items.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when multiple distinct clock frequencies are required from a single device with zero ppm error. Ensure the design utilizes the ClockBuilder Pro utility to define the specific frequency plan and control pin assignments before ordering. Verify that the target application supports the available input formats and that the output load requirements align with the specified driver capabilities.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5335 family of highly flexible clock generators. Unlike fixed-function oscillators, it allows for post-manufacturing customization through Skyworks' web-based tools. The 'GM' suffix indicates a Green (RoHS compliant) package, typically housed in a 24-lead QFN form factor measuring 4 x 4 mm.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements require identical frequency plans and pin configurations. Generic Si5335 variants may differ in output drive strength or input compatibility. Verify that any substitute device supports the same MultiSynth architecture and jitter performance metrics required by the PCIe or Ethernet standards being implemented.