SI5334K-B05547-GMR

Overview

The SI5334K-B05547-GMR is a pin-controlled 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 features low phase jitter of 0.7 ps RMS typical and zero ppm frequency accuracy. It accepts external crystals (8–30 MHz) or reference clocks (5–710 MHz). Each output driver supports independent voltage levels (1.5, 1.8, 2.5, or 3.3 V) and formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The core supply operates at 1.8, 2.5, or 3.3 V.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential outputs with 0.7 ps RMS typical jitter.
• Supports Spread Spectrum Clocking (SSC) compliant with PCI Express standards for EMI reduction.
• Flexible input options include external crystals (8–30 MHz) and reference clocks (5–710 MHz).
• Independent output drivers allow configurable signal formats (LVPECL, LVDS, HCSL, etc.) and supply voltages.

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 B05547 against the official Skyworks datasheet to confirm the exact factory-programmed frequency plan and output configuration. Ensure compatibility with the required input reference source and output load conditions before procurement.

Selection Notes

Select this component when pin control is preferred over I2C interfaces. Verify that the required output frequencies fall within the 350 MHz general limit or the 710 MHz selective limit. Confirm that the target application supports the available output voltage levels and signal formats provided by the MultiSynth drivers.

Part Context

This part belongs to the Si5334 family of high-performance clock generators. The 'K' suffix indicates support for Spread Spectrum Clocking (SSC), distinguishing it from variants like the Si5334D/E/F which offer phase adjustment or the Si5334G/H/J which provide frequency increment/decrement capabilities.

Replacement Considerations

Direct replacements within the same package and functionality require matching the specific frequency plan. Other Si5334 variants (e.g., Si5334D, Si5334G) may serve as functional substitutes if their specific control features (phase vs. frequency adjustment) align with the design requirements.

FAQ

What is the maximum output frequency supported by the Si5334?

The device supports any frequency up to 350 MHz on all outputs. Select frequencies are supported up to 710 MHz.

Does the Si5334 support I2C programming?

No, the Si5334 is a pin-controlled device. Configuration is handled via hardware pins, and it does not include an I2C interface.

What is the typical phase jitter performance of this device?

The device exhibits a typical phase jitter of 0.7 ps RMS, measured under standard test conditions with LVDS/HCSL/LVPECL outputs.