SI5338M-B04373-GM

Overview

The SI5338M-B04373-GM is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended outputs including LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL. The device operates with a core supply of 1.8 V, 2.5 V, or 3.3 V and features low phase jitter of 0.7 ps RMS typical. Input references range from external crystals (8–30 MHz) to differential inputs up to 710 MHz. Outputs support frequencies from 0.16 MHz to 710 MHz depending on the format.

Feature Summary

• I2C-programmable architecture with MultiSynth technology for zero ppm frequency accuracy
• Four highly configurable output drivers supporting multiple signal formats and voltages
• Low phase jitter performance of 0.7 ps RMS typical
• Independent glitchless frequency and phase adjustment capabilities

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm factory programming parameters and package variant. Confirm that the I2C pull-up voltage requirements align with the system design, particularly if operating below 2.5 V.

Selection Notes

Select this component when independent frequency synthesis across four channels is required with high precision. Ensure the target output format and frequency fall within the specified limits for the chosen driver configuration. Consider the thermal resistance characteristics for PCB layout planning in dense applications.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The family offers flexible input options and low-jitter synthesis in a compact 4x4 mm QFN-24 package. It serves as a replacement for multiple discrete crystal oscillators in complex digital systems.

Replacement Considerations

Consult the official datasheet for confirmed substitute part numbers within the Si5338 series that match the required output frequency and format specifications.