SI5338M-B04914-GM

Overview

The Skyworks SI5338M-B04914-GM is a programmable quad clock generator utilizing MultiSynth technology for independent frequency synthesis on four output drivers. It supports differential and single-ended outputs including LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL. The device operates with core supply voltages of 1.8 V, 2.5 V, or 3.3 V and features low phase jitter of 0.7 ps RMS typical. Input frequencies range from 5 MHz to 710 MHz depending on the interface type, while output frequencies reach up to 710 MHz for differential formats. Configuration is managed via an I2C/SMBus interface.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with zero ppm precision.
• Supports highly configurable output drivers in various formats: LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL.
• Low phase jitter performance of 0.7 ps RMS typical across all outputs.
• Flexible input reference options including external crystals (8-30 MHz), CMOS (5-200 MHz), and differential inputs (5-710 MHz).

Applications

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

Procurement Notes

Verify the specific factory-programmed configuration associated with the B04914 suffix against the target design requirements. Confirm that the QFN-24 package dimensions align with the PCB land pattern specifications provided in the datasheet. Ensure the I2C pull-up voltage levels are compatible with the selected core supply voltage.

Selection Notes

Select this component when multiple independent clock frequencies with varying signal formats are required from a single IC. Verify that the desired output frequencies fall within the supported ranges for the chosen output format (e.g., LVDS up to 710 MHz, CMOS up to 200 MHz). Check if the glitchless frequency adjustment feature is needed for dynamic system changes.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators and frequency translators. The 'M' designation typically indicates a specific output configuration or pinout variant within the broader Si5338 series, programmed via NVM.

Replacement Considerations

Direct replacements must match the 24-QFN package and support the same I2C programming interface. Other Si5338 variants may require reprogramming or hardware adjustments if their default output configurations differ.