SI5338C-B05274-GM

Overview

The SI5338C-B05274-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 from 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 zero ppm precision synthesis on four independent outputs
• Supports LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL output formats
• Low phase jitter performance of 0.7 ps RMS typical
• Flexible input options: external crystal (8-30 MHz), CMOS (5-200 MHz), and differential (5-710 MHz)

Applications

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

Procurement Notes

Verify the specific factory configuration code embedded in the suffix B05274 against the official Skyworks ordering guide. Confirm that the GMR suffix indicates tape-and-reel packaging suitable for automated surface-mount assembly processes.

Selection Notes

Select this component when independent frequency synthesis across four channels is required. Ensure the target output voltage levels (1.5 V, 1.8 V, 2.5 V, or 3.3 V) match the load requirements. Validate that the input reference signal type and frequency range fall within the supported specifications for the desired output format.

Part Context

This part belongs to the Si5338 family of I²C-programmable clock generators. It replaces multiple discrete oscillators in system designs. The 'C' designation typically refers to the commercial temperature grade (-40°C to +85°C). The specific suffix defines the pre-programmed register values for immediate deployment without field programming.

Replacement Considerations

Direct pin-to-pin replacements within the same package require identical electrical characteristics and pinout configurations. Verify compatibility with existing PCB land patterns and ensure the replacement part supports the required output formats and jitter specifications.