SI5338C-B04404-GM

Overview

The SI5338C-B04404-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 with frequencies up to 710 MHz. The device operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V and features low phase jitter of 0.7 ps RMS typical. Configuration is performed via an I²C/SMBus interface, allowing for flexible input references including crystals, CMOS, and differential signals.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four output drivers with zero ppm precision.
• Supports diverse output formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL with independent voltage levels (1.5V, 1.8V, 2.5V, 3.3V).
• Low phase jitter performance of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 Common Clock standards.
• Flexible input options: external crystal (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), or differential (5-710 MHz).

Applications

• PCIe Gen 1/2/3/4 clock generation
• Ethernet switch/router timing
• Processor and FPGA clocking
• Broadcast video/audio timing

Procurement Notes

Verify the specific factory programming code associated with the B04404 suffix against the official Skyworks ordering guide to ensure the correct frequency plan and output configuration are obtained. Confirm that the GMR suffix indicates tape-and-reel packaging suitable for automated assembly processes.

Selection Notes

Select this component when multiple independent clock frequencies with varying signal formats and voltage levels are required from a single package. Ensure the input reference source matches one of the supported types (crystal, CMOS, or differential) and verify that the required output frequencies fall within the specified ranges for the chosen output format.

Part Context

This part belongs to the Si5338 family of I²C-programmable clock generators. The 'C' in the part number typically denotes a specific temperature grade or commercial variant within the series, while the alphanumeric code defines the factory-programmed clock settings. The device replaces multiple discrete oscillators, reducing board space and power consumption.

Replacement Considerations

Direct pin-to-pin replacements within the same package must be sought from the Si5338 family. Verify that alternative parts support the same output count and frequency requirements. Note that ordering suffixes determine the programmed content; generic Si5338 devices require field programming if pre-configured settings are not available.