SI5338C-B04266-GM

Overview

The SI5338C-B04266-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 configurable signal formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. 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. It accepts flexible inputs such as external crystals (8–30 MHz), CMOS (up to 200 MHz), and differential clocks (up to 710 MHz).

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four differential output drivers.
• Low phase jitter of 0.7 ps RMS typical for high-performance timing applications.
• Flexible input reference options including external crystal, CMOS, and differential inputs up to 710 MHz.
• Independently configurable outputs support various signal formats and supply voltages (1.5V, 1.8V, 2.5V, 3.3V).

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant systems.
• Ethernet switch/router and 1 GbE/10 GbE networking equipment.
• Processor and FPGA clocking solutions.
• Broadcast video/audio timing infrastructure.

Procurement Notes

Verify the specific ordering suffix B04266 against the manufacturer's current documentation to confirm pinout compatibility and factory programming settings. Ensure that the I2C/SMBus interface voltage levels match the system bus requirements, as the device supports pull-up voltages from 1.71 V to 3.63 V.

Selection Notes

Select this component when zero ppm frequency accuracy is required across multiple independent outputs. Consider the available output formats (LVPECL, LVDS, CMOS, etc.) and their respective frequency limits (e.g., LVDS up to 710 MHz, CMOS up to 200 MHz) to ensure they meet the target load requirements. Verify thermal performance within the –40 to +85 °C operating range.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces multiple discrete oscillators by providing four independent clock signals from a single package. The device is designed for space-constrained applications requiring high precision and low jitter in telecommunications and data communication systems.

Replacement Considerations

Direct replacements within the Si5338 family may exist but require verification of the specific output frequency ranges and jitter specifications. Ensure that any substitute part maintains compatibility with the existing I2C configuration and NVM programming if used.