SI5338F-B04076-GM

Overview

The SI5338F-B04076-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 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. It is housed in a compact 4 x 4 mm QFN-24 package.

Feature Summary

• I2C/SMBus programmable interface for flexible configuration
• Independent output voltage support (1.5 V, 1.8 V, 2.5 V, 3.3 V)
• Glitchless frequency adjustment via independent increment/decrement feature
• Supports spread spectrum modulation on any output

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 ordering suffix B04076 against the manufacturer's official documentation to confirm the exact pre-programmed frequency plan and pinout configuration. Ensure compatibility with I2C bus voltage levels by checking register settings if the bus voltage is below 2.5 V.

Selection Notes

Select this component when zero ppm frequency accuracy is required across multiple independent clocks. Consider the available input reference options, ranging from external crystals (8–30 MHz) to high-frequency differential inputs up to 710 MHz, to match the system architecture.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'F' designation typically indicates a specific factory-programmed frequency plan, while 'GM' denotes the tape and reel packaging format for surface-mount assembly.

Replacement Considerations

Direct replacements within the same family include other Si5338 variants with different programming suffixes. Verify that the substitute part number supports the required output frequencies and signal formats before integration.