SI5334B-B03318-GM

Overview

The SI5334B-B03318-GM is a pin-controlled, low-jitter quad clock generator from Skyworks Solutions. It synthesizes any frequency on four differential outputs using MultiSynth technology, supporting frequencies up to 350 MHz generally and select frequencies up to 710 MHz. The device accepts external crystals (8–30 MHz) or reference clocks (5–710 MHz). It features independent output voltage control (1.5, 1.8, 2.5, or 3.3 V) and core supply options (1.8, 2.5, or 3.3 V). Key electrical parameters include a typical phase jitter of 0.7 ps RMS, a maximum propagation delay of 4 ns in buffer mode, and an operating temperature range of -40°C to +85°C.

Feature Summary

• MultiSynth Technology: Enables independent, any-frequency synthesis with zero ppm error on four differential outputs.
• Flexible Output Drivers: Supports LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats with independent supply voltages per driver.
• Pin Control Interface: Factory-programmable configuration without I2C; includes LOS/LOL alarm and OEB pins.
• Glitchless Frequency Adjustment: Pin-controlled frequency increment/decrement capability for margining applications.

Applications

• Ethernet switch/router clocking
• PCI Express 2.0/3.0 timing
• Processor and FPGA clock generation
• Broadcast video/audio synchronization

Procurement Notes

Verify the specific suffix B03318 against the official datasheet ordering table to confirm the programmed frequency plan. Ensure the required output format matches the factory-programmed configuration, as field reprogramming is not supported for this pin-controlled variant.

Selection Notes

Select this component when pin-control simplicity is preferred over I2C programmability. Verify that the target application frequencies fall within the 350 MHz standard limit or the 710 MHz selective limit. Confirm that the required output voltage levels are compatible with the available VDDOx settings.

Part Context

This part belongs to the Si5334 family of pin-controlled clock generators. It shares the same 24-lead QFN package and core architecture with other variants like the SI5334A and SI5334C, differing primarily in the factory-programmed frequency plans and specific feature sets enabled by the middle suffix letter.

Replacement Considerations

Direct replacements must be from the Si5334 family with identical pinouts. Verify that the substitute part number supports the same output frequencies and signal formats, as these are hard-coded at the factory.