SI5338N-B04996-GMR

Overview

The Skyworks SI5338N-B04996-GMR is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent output clocks with zero ppm frequency accuracy and low phase jitter of 0.7 ps RMS typical. The device supports flexible input references, including differential inputs up to 710 MHz, and offers configurable output formats such as LVDS, LVPECL, HCSL, and CMOS. Powered by a single core supply of 1.8 V, 2.5 V, or 3.3 V, it operates within a temperature range of –40 °C to +85 °C in a compact 4 x 4 mm QFN-24 package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with true zero ppm precision.
• Low phase jitter performance of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 Common Clock standards.
• Flexible input reference options supporting external crystals (8–30 MHz), CMOS (up to 200 MHz), and differential inputs (up to 710 MHz).
• Highly-configurable output drivers allowing up to four differential outputs, eight single-ended outputs, or mixed configurations.

Applications

• Ethernet switch/router clocking
• PCIe Gen1/2/3/4 systems
• Processor and FPGA clocking
• Broadcast video/audio timing

Procurement Notes

Verify the specific ordering suffix B04996 against the manufacturer's official documentation to confirm pre-programmed register settings. Confirm that the GMR suffix corresponds to the required reel packaging format for surface-mount assembly processes.

Selection Notes

Select this component when designing systems requiring multiple independent clock frequencies from a single IC. Ensure the application utilizes differential inputs if frequencies above 350 MHz are needed. Validate that the target output voltage levels (1.5 V, 1.8 V, 2.5 V, or 3.3 V) match the load requirements.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It serves as a replacement for multiple discrete crystal oscillators, consolidating frequency generation into a single space-saving package while providing glitchless frequency adjustments via independent increment/decrement features.

Replacement Considerations

Direct pin-to-pin replacements within the same family include SI5338A, SI5338J, and SI5338Q variants. Verify that the substitute part number matches the required maximum output frequency and specific output configuration constraints.