SI5338F-B04078-GMR

Overview

The SI5338F-B04078-GMR 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 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 accepts input frequencies up to 710 MHz. Key electrical parameters include a typical phase jitter of 0.7 ps RMS, a maximum output frequency of 710 MHz for differential signals, and an operating temperature range of -40°C to +85°C.

Feature Summary

• MultiSynth technology enables true zero ppm frequency accuracy on all four outputs.
• Flexible input reference options: external crystal (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), or differential (5-710 MHz).
• Independent output voltage configuration per driver: 1.5 V, 1.8 V, 2.5 V, or 3.3 V.
• Glitchless frequency adjustments via independent increment/decrement features in 1 ppm steps.

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS compliant timing.
• Ethernet switch/router and 1 GbE/10 GbE interfaces.
• Processor and FPGA clocking systems.
• Broadcast video/audio timing distribution.

Procurement Notes

Verify the specific factory programming code associated with the B04078 suffix against the ClockBuilder Pro software configuration. Confirm that the GMR suffix indicates tape-and-reel packaging suitable for automated surface-mount assembly processes.

Selection Notes

Select this model when independent frequency synthesis across four channels is required without multiple oscillators. Ensure the target application supports the I2C/SMBus interface for configuration. Validate that the required output signal formats (LVPECL, LVDS, etc.) align with the available driver capabilities and voltage levels.

Part Context

This component belongs to the Si5338 family of low-jitter clock generators. It replaces discrete crystal oscillators by providing flexible frequency translation and buffering within a compact 4x4 mm QFN-24 package. The device integrates NVM for storing configurations, reducing board space compared to multi-oscillator solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs using the SI5338-EVB development kit or ClockBuilder Pro software before substitution.