SI5335B-B05902-GM

Overview

The SI5335B-B05902-GM is a web-customizable, any-frequency, any-output quad clock generator and buffer manufactured by Skyworks Solutions. It utilizes MultiSynth fractional divider technology to synthesize four non-integer-related frequencies up to 350 MHz with 0 ppm frequency synthesis error. The device supports independent output voltage levels of 1.5, 1.8, 2.5, or 3.3 V and features low phase jitter of 0.7 ps RMS. It operates on a single core supply (1.8, 2.5, or 3.3 V) and includes up to five user-assignable pin functions for system control.

Feature Summary

• MultiSynth technology enables independent synthesis of four frequencies up to 350 MHz with 0 ppm error
• Configurable as a clock generator or buffer with three independent, pin-selectable device configurations
• Flexible input reference supporting external crystals (25/27 MHz), CMOS (10–200 MHz), SSTL/HSTL (10–350 MHz), and differential inputs (10–350 MHz)
• Low phase jitter of 0.7 ps RMS with selectable PLL loop bandwidths of 1.6 MHz or 475 kHz

Applications

• PCI Express Gen 1/2/3/4 common clock and jitter attenuation
• Ethernet switch/router and 1 GbE/10 GbE interfaces
• DSL jitter attenuation and MSAN/DSLAM/PON systems
• Processor and FPGA clocking
• Broadcast video/audio timing and Fibre Channel/SAN

Procurement Notes

Verify the specific factory configuration encoded in the B05902 suffix against the target design requirements using the ClockBuilder Pro utility. Confirm that the 24-QFN package dimensions and thermal pad grounding meet PCB layout specifications. Ensure the selected core and output supply voltages align with the device's recommended operating conditions across the –40 to +85 °C temperature range.

Selection Notes

Select this component when a single device must replace multiple clock generators or buffers due to its support for three independent configurations. Choose between the 1.6 MHz and 475 kHz loop bandwidth settings based on whether jitter attenuation for applications like PCIe or DSL is required. Verify that the required output formats (LVPECL, LVDS, CML, HCSL, CMOS, SSTL, HSTL) are supported by the available output drivers.

Part Context

The SI5335 belongs to Skyworks' MultiSynth family of highly flexible clock synthesizers. This series allows for web-based customization without minimum order quantity restrictions, typically delivering factory-configured devices within two weeks. The part number structure indicates the specific electrical and functional configuration provided by the manufacturer.

Replacement Considerations

Direct replacements require matching the specific frequency plan and output configurations defined by the B05902 suffix. Other Si5335 variants may offer different loop bandwidth options or input/output combinations but will not be functionally equivalent without reconfiguration via ClockBuilder Pro.