SI5334C-B05752-GMR

Overview

The SI5334C-B05752-GMR is a pin-controlled quad clock generator from Skyworks Solutions. It synthesizes any frequency on four differential outputs using MultiSynth technology, achieving zero ppm frequency error and 0.7 ps RMS typical jitter. The device supports flexible input references including crystals (8–30 MHz) and clocks up to 710 MHz. Outputs are independently configurable for formats such as LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL with individual supply voltages of 1.5, 1.8, 2.5, or 3.3 V. It operates on a core supply of 1.8, 2.5, or 3.3 V within the -40 to +85 °C range.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with 0.7 ps RMS typical jitter.
• Highly-configurable output drivers support LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats with independent voltage selection.
• Flexible input reference options include external crystals (8–30 MHz), CMOS (up to 200 MHz), and differential inputs (up to 710 MHz).
• Pin-controlled configuration allows for glitchless frequency adjustments and phase offset programming without an I2C interface.

Applications

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

Procurement Notes

Verify the specific suffix 'B05752' against the manufacturer's current ordering guide to confirm the exact factory-programmed frequency plan and output configurations. As this is a custom part number, availability may be limited compared to standard off-the-shelf variants. Ensure the selected package matches the required PCB land pattern for the 24-lead QFN form factor.

Selection Notes

Select this component when low jitter and high flexibility are required for multi-standard clocking applications. Verify that the target output frequencies fall within the supported ranges for the chosen signal format (e.g., LVDS up to 710 MHz, CMOS up to 200 MHz). Confirm that the system power budget accommodates the typical 45 mA core supply current and the specific output driver currents based on the load capacitance and voltage levels.

Part Context

This part belongs to the Si5334 family of pin-controlled clock generators. The 'C' in the model name typically denotes a specific feature set or revision within the series, while the numeric suffix defines the unique frequency synthesis parameters programmed into the internal non-volatile memory at the factory.

Replacement Considerations

Direct replacements must match the 24-QFN package and pinout. Verify that alternative parts support the same MultiSynth architecture and jitter specifications. Note that generic Si5334 variants may require reprogramming if they do not share the identical factory-defined frequency plan.

FAQ

Does the SI5334C support I2C programming?

No, the Si5334 is a pin-controlled device and does not provide an I2C interface. Configuration is handled via hardware pins or factory programming.

What is the maximum input frequency for differential clock inputs?

The device accepts differential clock inputs ranging from 5 MHz to 710 MHz on pins IN1/2 and IN5/6.

Can the output supply voltages differ from the core supply voltage?

Yes, each output driver has an independent supply voltage (VDDOx) that can be set to 1.5, 1.8, 2.5, or 3.3 V, separate from the core supply (VDD).