SI5338A-B05922-GM

Overview

The SI5338A-B05922-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency up to 710 MHz with zero ppm accuracy on four independent outputs. The device supports flexible input references including external crystals (8–30 MHz), CMOS, SSTL/HSTL, and differential inputs up to 710 MHz. Outputs are configurable for LVPECL, LVDS, HCSL, CMOS, SSTL, or HSTL formats with independent supply voltages of 1.5, 1.8, 2.5, or 3.3 V. Key electrical parameters include a typical core supply current of 45 mA, operating voltage range of 1.71–3.63 V, and low phase jitter of 0.7 ps RMS.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with true zero ppm precision.
• Supports highly-configurable output drivers in differential (LVPECL/LVDS/CML) or single-ended (HCSL/CMOS/SSTL/HSTL) formats.
• Features glitchless frequency adjustments via independent increment/decrement and phase adjustment with <20 ps steps.
• Includes configurable spread spectrum generation with frequencies from 5 to 350 MHz and modulation rates from 33 to 63 kHz.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant timing
• Ethernet switch/router and 1 GbE/10 GbE interfaces
• Processor and FPGA clocking systems
• Broadcast video/audio timing distribution

Procurement Notes

Verify the specific ordering suffix B05922 against the manufacturer's official documentation to confirm factory-programmed NVM content. Ensure I2C pull-up voltages comply with the 1.71–3.63 V support range and register settings if bus voltage is below 2.5 V. Confirm package integrity for the 24-lead QFN form factor prior to assembly.

Selection Notes

Select this component when designing systems requiring independent frequency synthesis across multiple domains without external oscillators. Ensure the required output format (LVPECL, LVDS, etc.) and voltage levels match the driver capabilities. Verify that the input reference source falls within the supported frequency ranges for the chosen coupling method.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators by providing four independent clock outputs from a single reference. The device integrates PLL and MultiSynth stages to achieve high-precision frequency translation and jitter attenuation in a compact 4x4 mm QFN package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Skyworks Solutions for cross-reference information regarding legacy silicon or alternative pin-compatible devices.